Measurement of 

Hydraulic Diffusivity of 

Wedge-Shaped Aquifers 

Drained by Streams 

GEOLOGICAL SURVEY PROFESSIONAL PAPER 514 

Measurement of 

Hydraulic Diffusivity of 

Wedge-Shaped Aquiferf 

Drained by Streams 

By R. W. STALLMAN and I. S. PAPADOPULOS 

GEOLOGICAL SURVEY PROFESSIONAL PAPER 514 

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1966 
UNITED STATES DEPARTMENT OF THE INTERIOR 

STEW ART L. UDALL, Secretary 

GEOLOGICAL SURVEY 

William T. Pecora, Director 

Library of Congress catalog-card-No. GS66-178 

For sale by the Superintendent of Documents, U.S. Government Printing Office 

Washington, D.C. 20402 - Price $4.50 (paper cover) 
CONTENTS 

Page Abstract __________________________________________ _ 1 Use of response curves ________________________ - ____ - _ Introduction ______________________________________ _ 1 References ________________________________________ _ 

Theory and field data _______________________ ~ _______ _ 1 Tables ____________________________________________ _ 

ILLUSTRATIONS 

Page 

2 

4 

5 

Page 

PLATES 1-120. Graphs showing s/s0 versus Tt/r2S for selected values of 80, 8/80, rfa ____________ ------------------- In pocket 

FIGURE 1. Sketch map of surface drainage pattern, showing locations of observation wells _________ -_----------------- 2 

2. Example hydrograph from well A of figure 1 ______________________________________ - _----------------- 3 

3. Graph of s/s0 versus time, showing computation of TfS __ c. ____________ ---- _____ ------------------------ 3 

III 

MEASUREMENT OF HYDRAULIC DIFFUSIVITY OF 

WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

By R. W. STAI~LMAN and I. S. PAPADOPULOS 

ABSTRACT 

Theoretical response curves are presented in graphical and 

tabular form relating (1) water-level changes caused by dissipation of recharge from unconfined wedge-shaped aquifers to 

streams to (2) Tt/r2S, from which T/S can be computed. 

INTRODUCTION 

Many of the unconfined aquifers in the United 

States are drained by perennial streams. Such aquifers 

generally receive recharge from precipitation, part of 

which flows laterally to streams and part of which may 

be lost directly from the zone of saturation by evapotranspiration. Aquifers hydraulically bounded by 

streams, recharged by relatively infrequent releases of 

water through the unsaturated zone, and isolated from 

the vagaries of evapotranspiration by a thick unsaturated zone are ideally susceptible to analysis for hydraulic diffusivity-the ratio T/8, where T is the 

transmissibility and 8 is the coefficient of storage of 

the aquifer. 

Study of the effects of large-scale development of 

ground water requires estimates of values of T on a 

large scale. Pumping tests, using wells or well fields 

to provide a known stimulus to ground-water movement, are most generally used for determining T and 

8 of aquifers. (See Ferris and others, 1962, for example.) However, pumping wells can sample only a 

small segment of the aquifer, and inconsistencies in 

T and 8 as observed from pumping tests may therefore 

reflect local heterogeneity and may not provide reliable values of either coefficient on an areal basis. 

The senior author had the problem of determining 

values of T and 8 on a large scale in connection with 

fieldwork done in Portage County, Wis. (Weeks and 

others, 1964). 

In the vicinity of the Little Plover River, Portage 

County, Wis., an unconfined aquifer of outwash 

extends to a depth of about 80 feet below the land 

surface. In most years the principal source of recharge 

is the water released from the unsaturated zone by 

the spring thaw, except during summers having aboveaverage precipitation. Loss of water from the aquifer 

by evapotranspiration seems to be negligible. The 

aquifer is drained by streams in the area. 

The physical system identified here is 8Jl alogous to 

the conditions of a heat-flow problem solved by Jaeger 

(1942). Jaeger's solution (1942) was applied specifically to heat flow in a split log, or the sector of a circle, 

where the temperature is changed on the surface of 

the log or perimeter of the sector of a circle at time 

t=O. Flow of heat along the longitudinal axis of the 

log, or perpendicular to the surface of th~ circle, is 

assumed to be negligible. Jaeger's analysis of the 

problem resulted in an integral equation. Numerical 

values of Jaeger's integral equation were o~tained by 

Papadopulos (1963) for use in analyzing data from 

three observation wells in Wisconsin (Weeks, 1964). 

The close fit between observed and theoretical 

water-level changes encouraged developn1ent of a 

nearly complete set of response curves fro'TI Jaeger's 

work. Numerical evaluation of Jaeger's integral equation required excessively lengthy manual co.'llputation; 

consequently, the computing work was assigned to 

the U.S. Geological Survey's Computation Unit, Washington, D.C. All the response curves pr~sented in 

this paper were developed on digital equipment by 

that unit, under the direction of Walter Anderson. 

Ground-water levels are observed in a continuing 

program by the Ground Water Branch, U.S. Geological 

Survey, in several thousand wells through:out the 

United States. Data from wells in unconfined aquifers, 

where the hydrologic controls on the aquifer are as 

outlined above, can be analyzed for TIS by means of 

the response curves presented in this report. 

THEORY AND FIELD DATA 

A hypothetical distribution of streams i~ shown on 

figure 1. Each stream segment drains part of an 

unconfined aquifer underlying the art~a. C'"lservation 

well A (bottom half of fig. 1) is near the confluence of 

two tributaries. The tributaries form a weige having 

an an~le of 80 which equals 7 5°, approximfl tely. The 

wedge shape and location are drawn as an approximation of the course of the meandering strf"l.ms. The 

angle between one side of the wedge, and a line through 

the apex of the wedge and observation woll is noted 

as (J and equals 15°. Radius, r, to the observation well 

1 
2 HYDRAULIC DIFFUSIVITY, WEDGE-SHAPEU AQUIFERS DRAINED BY STREAMS 

FIGURE i.-Surface drainage pattern, showing location of 

observation wells that penetrate an unconfined aquifer. 

from the apex of the wedge is approximately 5 miles. 

Radius a is the distance from the apex of the wedge to 

a circumference along which water levels are presumed 

constant. In actuality, around well A the distance a 

should be extended beyond 20 miles to the tributaries 

forming an approximate closure on the north. However, as will be seen, the distance a can be taken as 

infinity without introducing a significant error in the 

computed T/S of the area around A. 

A -hydrograph from well A is shown on figure 2. 

The decline in water level results from continued flow 

to the streams between January and about mid-May. 

During the latter part of May the aquifer is recharged 

by water released during the spring thaw, and the water 

level in well A rises sharply by an amount s0 • At the 

time marked t=O, the recharge is effectively complete 

and water levels begin to decline in response to discharge 

to the streams. The difference between the p:r;erecharge 

water-level trend and observed water levels is identified 

as 8 on figure 2. The time reference for 8 h t=O, when 

recharge becomes negligible. Water-level altitudes in 

all streams in the area are assumed conrt,ant, as an 

approximation. Thus the peaks in stream stage caused 

by overland runoff are assumed to have negligible effect 

on ground-water levels. 

The mathematical solution to the flow problem 

outlined with the aid of figures 1 and 2 is given by 

Jaeger (1942, p. 532, equation 16). Jaeger's result 

can be stated, for simplicity, in the following form: 

~=F(Oo, 0/0o, r/a, TtjrS) So (1) 

where Tis the transmissibility of the aquifer, S is the 

specific yield, tis time measured from t=(] on figure 2 

at which 8 is observed, and r is as defined on figure 1. 

Note that sfs0, Tt/r2S, rfa, and 0/0o are nondimensional. 

If t is in days and r is in feet, the units of T are square 

feet per day. Other notation is defined alsc on figure 1. 

The function s/so versus TtfrS of equation 1 was evaluated for selected values of Oo, 0/0o, and rfa by a digital 

computer. 

USE OF RESPONSE CURVES 

Water-level changes in the aquifer observed at well 

A due to lateral flow of ground water fro:r the wedge 

area to the streams are given as sfso vel'f\11S log t on 

figure 3. Figure 3 is similar to the graphs of drawdown 

versus the log of time commonly used for analysis of 

pumping-test data. 

Curves of sfs0 versus Tt/r28 have been so compiled 

on plates 1-120 that each figure includes all available 

curves for a particular value of Oo and of 0/0o. (The 

base sheet used for plotting was Codex No. 31,227, 

having 20 lines per inch, and each log cycle is 11'{ a 

inches wide.) Thus, to find the apprcnriate type 

curve for a given observation well it is necessary to 

first determine Oo and 0/0o. From figure 1, for well 

A 00=75° and 0/00= 15/75=0.2. Respons~ curves for 

Oo=75° and O/Oo=0.2 are on plate 34. 

The curve for rfa=5 miles/20 miles=0.25 is located 

on plate 34, and is then matched with tho data curve 

to solve for Tt/rS at a particular value of time. Matching is accomplished by superimposing the data plot, 

figure 3, on the response curve and keer;ng the 8/8o 

axes coincident. The data plot is moved from side to 

side until a position is found at which the data points 

overlie the theoretical response -Qurve for 0o=75°, 

0/0o=0.2, and rfa=0.25. Any convenient value of 

TtjrS is selected on the axes of the response curve and 

tis read at the corresponding point on the data curve. 

An example match point for figure 3 is TtjrS=l.OO 
1- 25 LLJ 

LLJ 

1.1.. 

~ 

LL.i 

Cl 

::::> 

1-

~ 20 <( 

...J 

LLJ 

G:i 

...J 

0:: 

LLJ 

1-

~ 

~ 

so 

15 

0 

0.2 

0.4 

0.6 

0.8 

1.0 

1 

USE OF RESPONSE CURVES 

s0 Observed water-level altitudes 

(smoothed) 

s 

- -1 --

00 = 75° 

8 =15° 

r =5 miles 

a= 20 miles 

--7--

Projected water-level trend -------

------------------

3 

FIGURE 2.-Example hydrograph from well A of figure 1, showing observed and projected water-level altitudes. 

_, ... ... - /, 

/.//" 

/ 

/'observed 

l"'Theoretical response 

/ 

I 

I 

I 

I Match line at I 

I .11... = 1.00 I r I 2S I 

I t =360 days I 

I Computation: 

lll T l.OOx6.98x 10 8 

/ 

/ s- 360 

l' 

/ 

// 

/ 

10 100 

t, IN DAYS 

1000 

As rfa approaches zero, the response curves form an 

envelope on the lower right of many of plates 1-120. 

The envelope represents aquifer response for r/a=O, 

or a=oo. For observation well A, where rfa=0.25, 

response is like that where a= oo until s/so is less than 

about 0.1. Therefore the position assumed for radius a 

around observation well A is immaterial for most of 

the useful data from figure 2. Increasing a to a value 

greater than 20 miles would not affect the value of T/S 

computed on figure 3. 

FIGURE 3.-s/s0 versus time taken from hydrograph of well A 

(see fig. 2), showing computation of T f S. 

Observation well B (fig. 1) is near the headwaters of a 

stream. Such a situation can be viewed as a region of 

flow to a wedge of slightly less than 360°, the apex of 

the wedge being at the upper end of the stream. Values 

of the pertinent variables from figure 1 are as follows: 

8o=360°, 8/80=108/360=0.30, and r/a=0.5. The response curve appropriate for analyzing data from B is 

on plate 116. Note that the value of r/a hf'.s a greater 

effect on response for large values than for small values 

of flo. 

Caution must be used in applying the response curves. 

and t=360 days. The computation for T(S is given 

on figure 3. If S equals 0.2, 

T=0.2X1.94X106=4X105 ft2 per day, or 

4X105X7.48=3X106 gallons per day per foot. 

In the example hydrograph given on fig,Ire 2 it is 

difficult to project reliably the water-level trend much 

beyond July. Thus, values of s/so from only about 50 

days after cessation of recharge can be consid~red useful. 

Generally field data will be more difficult to interpret 

than figure 2, because observed water leve~<'~ generally 
4 HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

do not form such a smooth trend as shown. Also, 

consider the response of well A of figure 1, assuming 

that Tf8=2X 104 ft2 per day. Thus, 

Tt 2X104 _ _ 5 rS 6.

98X 108 t-2.86X10 t. 

Fort of about 1 year, TtfrS is about 1 X 10-2• 

Therefore for t less than about 1 year, sfso varies 

between 1.0 and 0.9 if T/S=2X 10\ Oo=75°, 8/80=0.2, 

and rfa=0.25. Obviously, then, stream control around 

well A in an aquifer having TjS of about 2X 104 ft2 

per day could not cause the drawdowns indicated on the 

hydrograph of figure 2. Ground-water outflow in the 

area is therefore probably controlled significantly by 

other hydrologic factors than stream location, such as 

recharge conditions different than those postulated in 

construction of the response curves. Comparison of 

the response curves with observed drawdowns can be 

used in this manner to aid in the identification of the 

principal hydrologic controls on ground water. 

Computed values of 1-(sf so) versus TtfrS, from 

which plates 1-120 were prepared, are given in the 

tables on pages 6-50. Two numbers are given for 

each row in the column marked Ttfr2

S. ~he second 

is the exponent of 10 to be applied. ThQ, complete 

value of TtjrS is obtained by multiplying the first 

number shown by 10 to the power indicated. 

REFERENCES 

Ferris, J. G., Knowles, D. B., Brown, R. H., and Stallman, 

R. W., 1962, Theory of aquifer tests: U.S. Geol. Survey 

Water-Supply Paper 1536-E, p. 69-174. 

Jaeger, J. C., 1942, Heat conduction in a wedge, or an infinite 

cylinder whose cross-section is a circle or a sec1or of a circle: 

Philos. Mag., ser. 7, v. 33, no. 222, p. 527-53e. 

Papadopulos, I. S., 1963, Preparation of type curves for calculating T/S of a wedge-shaped aquifer, in Slort papers in 

the geologic and hydrologic sciences: U.S. Geol. Survey 

Prof. Paper 475-B, p. B196-Bl98. 

Weeks, E. P., 1964, Use of water-level recession curves to determine the hydraulic properties of glacial outwa~h in Portage 

County, Wisconsin, in Short papers in the geologic and 

hydrologic sciences: U.S. Geol. Survey Prof. Paper 501-B, 

p. B181-B184. 

Weeks, E. P., Ericson, D. W., and Holt, C. L. R., Jr., 1965, 

Hydrology of the Little Plover River basin, Po-tage County, 

Wisconsin, and the effects of water resource development: 

U.S. Geol. Survey Water-Supply Paper 1811, 78 p. 
791-598 0-66-2 

TABLES OF VALUES OF NONDIMENSIONAL RESPONSE 

OF GROUND WATER 
6 

r/a 

0.15 

.20 

. 25 

.30 

.35 

. 40 

. 45 

. 50 

.60 

0.10 

.15 

. 20 

. 25 

.30 

.35 

.40 

.45 

.50 

.60 

0.10 

.15 

.20 

.25 

.30 

.35 

.40 

.45 

.50 

Tt 

fiB 

7.5,-2 

7.5, -2 5.6, -2 4.2,-2 

3.2,-2 

2.4,-2 

7.5,-2 

7.5,-2 

7.5,-2 

7.5, -2 7.5,-2 

7.5,-2 

5.6,-2 

4.2, -2 

7.5, -2 5.6, -2 4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3,-2 

1.3, -1 

1.3, -1 1.0,-1 

7.5,-2 

5.6,-2 

4.2, -2 

1.3, -1 1.3,-1 

1.3, -1 1.3, -1 

1.3, -1 1.0,-1 

1.0, -1 

1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

1.0,-1 

7.5,-2 

5.6, -2 4. 2, -2 3.2, -2 2.4,-2 

1.3, -1 

1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

1.3, -1 1.3, -1 1.3, -1 1.3, -1 1.3, -1 

1.3, -1 1.0, -1 

1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2, -2 3.2,-2 

2.4, -2 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPEU AQUIFERS DRAINED BY STREAMS 

·-~ II r/a 

8o=30°;! =0.05 8o 

[Pl.1] 

0.983 0. 70 

.983 

. 971 

.956 

.938 

.917 

.983 

.983 

.983 

.983 .80 .983 

.983 

.971 

.956 

.987 

.975 

. 958 

.939 

. 918 

.896 

.873 

8o=30°; !=0.10 

8o 

[Pl. 2] 

0. 989 0.60 

.989 

.981 . 70 

.966 

.943 

. 912 

.989 

.989 

.989 

.989 

. 990 

.981 

.982 .80 

.983 

.967 

.943 

.912 

.877 

.990 

.975 

. 950 

. 917 

.8'79 

.837 

8 8o=30°; Bo=0.15 

[PI.3] 

0.984 0.60 

.984 

.972 

.950 

.916 

.871 

.984 

.984 

.984 . 70 .984 

.985 

.986 

.973 

."989 

. 975 

.952 

.917 

.871 

.819 

. 760 

1-~ so 

5.6,-2 0.983 

4. 2,-2 .968 3.2,-2 .948 2.4,-2 .924 1.8, -2 .900 1.3,-2 .874 

1. 0,-2 .854 7.5, -3 .831 

5.6,-3 .805 4. 2,-3 . 775 

4.2,-2 .983 

3.2,-2 .967 

2. 4,-2 .946 1.8,-2 .922 

1.3,-2 .893 

1.0,-2 .868 

7.5, -3 .840 5.6,-3 .809 4. 2,-3 . 777 3.2,-3 . 744 

2. 4,-3 . 706 

1.8,-3 .663 1.3,-3 .608 

1.8, -2 0. 795 

1.3, -2 . 750 

7.5,-2 .987 

5.6,-2 .967 

4. 2,-2 .936 

3.2,-2 .897 

2.4,-2 .850 

1.8,-2 .803 

1.3,-2 . 753 

1.0,-2 . 714 

7.5,-3 .670 

5.6, -3 .621 

4. 2,-3 .568 3.2,-3 .513 

5.6,-2 .986 4.2,-2 .965 

3.2,-2 .936 2.4, -2 .894 

1.8,-2 .846 

1.3, -2 . 788 

1.0,-2 . 741 

7.5,-3 .686 5.6,-3 .630 4.2, -3 .571 

3.2,-3 . 514 

2.4, -3 .450 1.8, -3 .383 

1.3,-3 .305 

1.0, -1 0.985 

7.5,-2 .963 5.6, -2 .927 

4.2, -2 .878 

3.2,-2 .823 

2.4, -2 . 761 

1.8, -2 . 700 

1.3, -2 .634 

1.0, -2 .581 

7.5, -2 .981 

5.6, -2 .952 

4.2, -2 .906 3.2,-2 .848 

2.4, -2 • 779 

1.8, -2 . 711 

1.3, -2 .638 1.0, -2 .583 

7.5, -3 .523 

&.6,-3 .459 

4.2,-3 .392 

3.2,-3 .327 

r/a 

0.80 5.6,-2 

4.2, -2 3.2, -2 2.4, -2 1.8,-2 

1.3,-2 

1.0, -2 

0.10 1.3, -1 

.15 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 

.20 1.3, -1 .25 1.3, -1 

.30 1.3, -1 .35 1.3, -1 .40 1.3, -1 

.45 1.3, -1 1.0, -1 7.5, -2 

.50 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2,-2 

3.2,-2 

2.4, -2 

.60 1.0, -1 7.5,-2 

5.6, -2 4.2,-2 

3.2,-2 

2.4, -2 

0.10 1.8,-1 

1.3,-1 

1.0,-1 

.15 1.8,-1 

.20 1.8, -1 .25 1.8,-1 

.30 1,8, -1 

.35 1.8, -1 1.3,-1 

.40 1.3, -1 

.45 1.3,-1 

1.0, -1 7.5,-2 

.50 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2, -2 3.2,-2 

2.4,-2 

.60 1.0,-1 

7.5,-2 

5.6,-2 

4.2, -2 3.2, -2 

0.10 1.8, -1 1.3, -1 1. 0,-1 

. 15 1.8, -1 . 20 1.8, -1 

·-~ II r/a 

8o=30°; ~ =0.15-Continued 

0.979 0.80 

.949 

.905 

.844 

. 774 

.690 

.622 

8o=30°;! =0.20 9o 

[Pl.4] 

0.979 0.60 

.979 

.963 

.935 . 70 

.891 

.833 

.979 

.979 

.979 

.980 

. 980 

.982 

.965 

.935 .80 

.985 

.968 

.938 

.892 

.833 

. 766 

.689 

.981 

. 953 

.905 

.841 

. 770 

.691 

8o=30°; !=0.25 Bo 

[Pl. 5] 

0.989 0.60 

.975 

.956 

.989 

.989 . 70 

.989 

.989 

.989 

.975 

.976 

.978 

.958 

.922 

.982 .80 

.962 

.925 

.870 

. 799 

. 719 

.626 

.977 

.943 

.886 

.809 

. 724 

8 8o=.10°; 80=0.30 

[Pl. 6] 

0.987 0.25 

.972 .30 

.950 .35 

.987 .40 

.987 

1-~ so 

7.5,-3 0.547 

5.6,-3 .471 

4.2, -.3 .397 

3.2, -3 .328 

2.4,-.3 .258 

1.8,-3 .191 

1.3,-3 .124 

1.8, -2 0.612 

1.3,-2 .528 

1.0,-2 .464 

7.5,-2 . 975 

5.6,-2 .938 

4.2,-2 .878 

3.2,-2 .803 2.4,-2 . 714 

1.8, -2 .626 

1.3, -2 .534 

1.0,-2 .466 

7.5, -3 .395 

5.6, -3 .323 

4.2,-lJ .254 

3.2, -3 .191 

5.6, -2 .973 

4.2, -2 .934 

3.2, -2 .877 

2.4,-2 . 798 

1.8, -2 . 708 

1.3, -2 .601 

1.0, -2 .515 

7.5, -3 .425 

5.6, -3 .338 

4.2,-3 .260 

3.2, -3 .193 

2.4, -3 .132 

1.8, -3 .082 1.3, -3 .040 

2.4,-2 0.628 

1.8,-2 . 534 

1.3,-2 .436 1.0, -2 .363 

7.5,-2 .970 

5.6,-2 .925 

4.2,-2 .853 

3.2, -·2 . 763 

2.4,-2 .657 

1.8,-2 .551 

1.3,-2 .442 1.0,-2 .365 

7.5,-3 .289 

5.6,-3 .218 

4.2,-3 .154 

3.2,-3 .103 

5.6,-2 .967 

4.2,-2 .921 

3.2,-2 .852 

2.4,-2 . 758 

1.8, -2 .649 

1.3,-2 .522 

1.0,-2 .424 

7.5,-3 .324 

5.6,-3 .235 4.2,-3 .161 

3.2,-3 .105 

2.4,-3 .060 1.8,-3 .030 

1.8, -1 0.987 

1.8, -1 .987 

1.8, -1 .987 

1.8,-1 .989 

1.3, -1 .973 
r/a 

0.45 

.50 

.60 

. 70 

0.10 

.15 

.20 

.25 

.30 

.35 

.40 

.45 

.50 

.60 

0.10 

.15 

.20 

.'25 

.30 

.35 

.40 

.45 

.50 

Tt 

;:28 

1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 4.2,-2 

3.2, -2 2.4,-2 

1. 0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3, -2 1.0,-2 

1.0, -1 7.5,-2 

1. 8,-1 

1.3, -1 1.0, -1 

1.8, -1 1.8, -1 1.8, -1 1.8, -1 1.8, -1 

1.8, -1 1.3,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4.2,-2 

3.2, -2 2.4, -2 

1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 

1.8, -1 1.3, -1 1.0, -1 

1.8, -1 1.8, -1 1.8, -1 1. 8,-1 

1.8, -1 

1.8, -1 1.3, -1 1. 0,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2 -2 

-~ II r/a 

8 8n=30°; lin =0.30-Continued 

0. 975 0. 70 . 952 

.911 

.850 

. 980 

.956 

. 914 

.852 

. 770 

.678 

.573 

.80 . 973 

. 935 

.870 

. 782 

.684 

.575 

.468 

.358 

.280 

.990 

.966 

8n=30°; !=0.35 

8o 

[Pl. 7] 

0.986 0.60 

.969 

.945 

.986 

.986 . 70 . 986 

.986 

.986 

.988 

.970 

.973 

.947 

.902 

.835 

.978 .80 

.952 

.906 

.837 

. 747 

.646 

.530 

. 971 

.928 

.856 

. 760 

.652 

8o=30°; !=0.40 8o 

[Pl. 8] 

0.985 0.50 

.967 

.941 .60 

.985 

.985 

.985 

.985 

.985 

.987 

.968 

.941 . 70 

.990 

.971 

.943 

.896 

.824 

.976 

.949 

.899 

.826 

. 730 

Tt 

;:as 

5.6, -2 4.2,-2 

3.2,-2 

2.4, -2 1.8, -2 1.3,-2 

1.0,-2 

7.5,-3 

5.6,-3 

4.2,-3 

3.2, -3 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1. 8, -2 1. 3,-2 

1. 0,-2 

7.5, -3 

5.6,-3 

4.2,-3 

3.2,-3 

2.4,-3 

2.4,-2 

1.8, -2 1.3, -2 1.0, -2 

1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4,-2 

1.8, -2 1.3, -2 1.0, -2 7.5, -3 

5.6,-3 

4.2,-3 

7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4,-2 

1.8,-2 

1.3, -2 1.0, -2 7.5,-3 

5.6,-3 

4.2, -3 

3.2, -3 

3.2, -2 2.4,-2 

1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4.2, -2 3.2,-2 

2.4,-2 

1.8,-2 

1.3, -2 1.0, -2 

1.0, -1 7.5, -2 5.6,-2 

4.2, -2 3.2,-2 

2.4, -2 1.8, -2 1.3, -2 1.0, -2 7.5,-3 

5.6, -3 

4.2 -3 

TABLE·S 

1-.!. sn 

0.915 

.832 

. 729 

.607 

.487 

,365 

.282 

.205 

.140 

.088 

.051 

.989 

.963 

.910 

.831 

. 723 

. 599 

.456 

.348 

. 244 

.158 

.095 

.052 

.024 

0.532 

.415 

.297 

.216 

.989 

.962 

.906 

. 815 

. 702 

.568 

.435 

.304 

.218 

.144 

.087 

.047 

.988 

.959 

.900 

.814 

.695 

.559 

.403 

.289 

.185 

.106 

.054 

.025 

0.622 

.498 

.989 

.969 

.923 

.847 

. 743 

.629 

.500 

.377 

.253 

.170 

.988 

• 960 

.900 

.803 

.682 

.539 

.398 

.261 

.173 

.102 

.053 

.024 

r/a 

0.80 

0.10 

.15 

.20 

.25 

.30 

.35 

.40 

.45 

.50 

.60 

0.10 

.15 

. 20 

.25 

.30 

.35 

.40 

.45 

.50 

.60 

0.10 

.15 

.20 

.25 

Tt 

;:28 

7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 1.8, -2 

1.8, -1 1.3, -1 1.0, -1 

1.8,-1 

1.8, -1 1.8, -1 1.8, -1 1.8, -1 

1.8, -1 1.3,-1 

1.0, -1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2,-2 

3.2, -2 2.4, -2 

1.3, -1 1.0, -1 7.5,-2 

1.8,-1 

1.3,-1 

1. o, -1 

1.8, -1 1. 8,-1 

1.8, -1 1.8, -1 1.8, -1 

1.8, -1 1.3, -1 1. o, -1 

1.8,-1 

1.3, -1 1.0, -1 7.5, -2 5.6, -2 

1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.3, -1 1.0, -1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

2. 4,-1 

2.4,-1 

2.4, -1 

1

--f. II rja 

8 8o=30°; 60 =0.40-Continued 

0.987 0.80 

.956 

.894 

.802 

.674 

.529 

0.984 0.60 

.965 

.938 

.984 

.984 

.984 

.984 

.985 . 70 

.986 

.967 

.939 

.989 

.970 

.941 

.892 

.817 

.975 .80 

.947 

.895 

.819 

.720 

.607 

.479 

.989 

.968 

.920 

8o=30°; ! =0.50 8o 

[Pl. 10] 

0.984 0.60 

.965 

.938 

.984 

. 984 

.984 

.984 

.984 . 70 

.986 

.966 

.938 

.989 

.969 

.940 

.890 

.815 

.975 

.946 .80 

.894 

.817 

. 716 

.602 

.472 

.989 

.967 

8o=45°; !=0.05 8o 

[Pl.ll] 

0.988 0.30 

.981 .35 

.969 

.957 .40 

.45 

.988 

.988 

.988 

Tt 

f2i 

1.3, -2 1.0, -2 7.5, -~ 

5.6, -~ 

4.2,-~ 

5.6, -2 4.2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4, -2 1.8,-2 

1.3,-2 

1.0, -2 7.5,-3 

5.6, -3 

7.5, -2 5.6,-2 

4.2,-2 

3.2, -2 2.4, -2 1.8,-2 

1.3, -2 1.0, -2 7.5, -3 

5.6,-3 

4.2,-3 

7.5, -2 5.6,-2 

4.2, -2 3.2, -2 2.4,-2 

1.8, -2 1.3, -2 1.0, -2 

1. 0,-1 

7.5,-2 

5.6,-2 

4.2, -2 3.2, -2 2.4,-2 

1.8, -2 1.3, -2 1.0, -2 7.5,-3 

5.6, -3 

7.5, -2 5.6, -2 4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3, -2 1.0, -2 7.5, -3 

5.6,-3 

2.4,-1 

2.4,-1 

1.8, -1 1.8, -1 1.8,-1 

1.3,-1 

1.0,-1 

7 

0.365 

.248 

.145 

.073 

.031 

0.841 

. 734 

.614 

.481 

.353 

.226 

.143 

.988 

.958 

.896 

. 795 

.670 

.521 

.375 

.234 

.146 

.078 

.035 

.986 

.954 

.890 

• 794 

.662 

.511 

.342 

.223 

.121 

.055 

.020 

0.919 

.839 

. 730 

.609 

.475 

.345 

.217 

.134 

.987 

.958 

.894 

• 792 

.665 

.515 

.368 

.225 

.137 

.070 

.029 

.986 

.954 

.888 

. 791 

.657 

.505 

.335 

.214 

.114 

.049 

0.988 

.989 

.981 

.982 

.985 

.971 

.958 
8 

Tt 

;:tB r/a 

0.50 1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6, -2 

4.2,-2 

3.2,-2 

.60 1.3, -1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 

1.8,-2 

1.3,-2 

. 70 1.0,-1 

7.5,-2 

5.6,-2 

4.2, -2 

3.2,-2 

0.10 3.2,-1 

.15 3.2,-1 

.20 3.2,-1 

.25 3.2,-1 

.30 3.2,-1 

.35 3.2,-1 

2.4,-1 

1.8, -1 

.40 2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

.45 2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 

7.5,-2 

.50 2.4, -1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5, -2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

.60 1.8, -1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

0.05 4.2,-1 

.10 4.2,-1 

.15 4.2,-1 

.20 4.2,-1 

.25 4.2, -1 

.30 4.2,-1 

3.2,-1 

.35 3.2, -1 

2.4,-1 

1.8, -1 

1.3, -1 

.40 3.2, -1 

2.4, -1 

1.8, -1 

1.3, -1 

1.0, -1 

.45 2.4,-1 

1.8,-1 

1.3, -1 

1.0, -1 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

1-!.. II r/a •• 

8 8o=45°; 90=0.05-Contlnued 

0.988 0. 70 

.975 

.960 

.942 

.921 

.900 

.880 

.985 .80 

.971 

.951 

.928 

.904 

.882 

.859 

.836 

.808 

.985 

.969 

.947 

.922 

.896 

8 8o=45°; 8o =0.10 

[Pl.12] 

0.985 0.60 

.985 

.985 

.985 

.986 

.988 . 70 

.977 

.963 

.980 

.965 

.941 

.915 

.985 

.969 

.944 

.917 

.883 

.990 .80 

.976 

.950 

.922 

.885 

.844 

.803 

. 764 

. 723 

.989 

.969 

.943 

.904 

.858 

.811 

8 8o=45°; Bo=0.15 

[Pl.13] 

0.986 0.45 

.986 

.986 

.986 .50 

.987 

.988 

.979 

.982 

.967 

.945 

.912 

.60 

.986 

.971 

.948 

.913 

.876 

.978 

.955 

. 917 

.878 

Tt 1-!. ;:tB 8o 

2.4, -2 0.869 

1.8,-2 .842 

1.3,-2 .810 

1.0,-2 • 782 

7.5, -3 . 749 

5.6,-3 . 711 

4.2,-3 .668 

7.5,-2 .986 

5.6,-2 .972 4.2, -2 .953 

3.2,-2 .931 

2.4,-2 .905 

1.8,-2 .875 

1.3,-2 .837 

1.0,-2 .803 

7.5,-3 • 762 

5.6,-3 .717 

4.2, -3 .671 

3.2,-3 .624 

2.4, -3 .571 

1.8,-3 .513 

1.3,-3 .441 

3.2,-2 0. 767 

2.4,-2 . 724 

1.8,-2 .680 1.3,-2 .627 

1.0,-2 .579 

1.3,-1 .987 

1.0,-1 .970 

7.5,-2 .939 

5.6,-2 .896 

4.2,-2 .846 3.2,-2 . 796 

2.4, -2 . 743 

1.8,-2 .691 

1.3,-2 .631 

1.0,-2 .580 7.5,-3 .522 

5.6,-3 .459 

4.2, -3 .392 3.2,-3 .327 

1.0,-1 .989 

7.5,-2 .972 

5.6,-2 .944 4.2, -2 .906 3.2, -2 .864 

2.4, -2 .813 

1.8,-2 . 756 

1.3,-2 .683 1.0,-2 .620 

7.5, -3 .546 5.6,-3 .471 

4.2,-3 .397 

3.2,-3 .328 

2.4, -3 .258 

1.8,-3 .191 

1.3, -3 .124 

7.5,-2 0.828 

5.6,-2 . 770 

2.4, -1 .985 1.8, -1 .965 1.3,-1 .926 1. 0,-1 .885 7.5, -2 .831 

5.6,-2 . 772 

4.2, -2 . 711 

3.2,-2 .655 

2.4,-2 .596 

1.8,-1 .984 

1.3, -1 .955 

1.0, -1 .916 

7.5,-2 .859 

5.6,-2 . 791 

4.2,-2 .722 

3.2, -2 .660 

2.4,-2 .598 

1.8,-2 .537 

1.3,-2 .466 1.0, -2 .406 

r/a Tt 1-!. II r/a ;:tB 80 

8 8o=45°; 9o =0.15-Contlnued 

o. 70 1.3,-1 0.981 0.80 

1.0,-1 .955 

7.5,-2 .910 

5.6,-2 .847 

4.2,-2 • 773 

3.2,-2 • 701 

2.4,-2 .625 

1.8,-2 .552 

1.3,-2 .472 

1.0,-2 .408 7.5, -3 .338 5.6,-3 .267 

4.2,-3 .200 

3.2,-3 .142 

0.05 5.6,-1 0.990 0.60 

4.2,-1 .982 

.10 5.6,-1 .990 .15 5.6,-1 .990 

.20 5.6, -1 .990 

4.2,-1 .982 

.25 4.2,-1 .983 

.30 4.2, -1 .985 3.2,-1 .973 . 70 

2.4,-1 .955 

.35 4.2, -1 .989 

3.2, -1 .976 

2.4,-1 .957 

1.8, -1 .929 1.3, -1 .885 

.40 3.2, -1 .982 

2.4, -1 .963 

1.8,-1 .933 1.3,-1 .887 

1.0, -1 .839 

.45 3.2,-1 .989 .80 

2.4,-1 .971 

1.8,-1 .942 1.3, -1 .893 

1.0, -1 .842 7.5,-2 . 777 5.6,-2 • 703 

.50 2.4,-1 .981 

1. 8, -1 .954 

1.3,-1 .905 1.0,-1 .851 

7.5,-2 • 782 

5.6,-2 . 705 

4.2,-2 .627 

3.2, -2 .555 

2.4,-2 .482 

Bo==41°; .! ... o.25 8o 

[Pl.15] 

0.05 5.6, -1 0.987 0.40 

4.2,-1 .979 

.10 5.6,-1 .987 

.15 5.6,-1 .987 .45 

.20 5.6,-1 .987 

.25 5.6,-1 .988 4.2, -1 .979 

.30 4.2, -1 .982 3.2,-1 .967 

2.4,-1 .946 

.50 

.35 4.2,-1 .986 

3.2,-1 .972 2.4, -1 .948 

1.8, -1 .915 

1.3, -1 .862 

.40 3.2,-1 .979 2.4, -1 .955 1.8, -1 .920 

Tt 1-!. fiB 80 

1.0, -1 0.984 

7.5,-2 .959 

5.6,-2 .918 

4.2,-2 .862 3.2,-2 .800 2.4,-2 .727 

1.8,-2 .646 

1.3,-2 .547 

1.0,-2 .462 

7.5,-3 .371 

5.6,-3 .283 

4.2,-3 .206 

3.2,-3 .144 

2.4,-3 .090 1.8,-3 .050 1.3,-3 .021 

1.8,-1 0.979 

1.3,-1 .942 1.0,-1 .891 

7.5, -2 .817 

5.6,-2 .730 

4.2,-2 .641 

3.2,-2 .561 

2.4,-2 .484 

1.8,-2 .412 

1.3,-2 .332 

1.0,-2 .269 

1.3,-1 .975 

1.0,-1 .942 7.5,-2 .883 5.6, -2 .801 

4.2, -2 . 707 

3.2,-2 .614 

2.4, -2 .520 

1.8,-2 .431 

1.3,-2 .339 

1.0, -2 .271 

7.5,-3 .202 

5.6, -3 .139 

4.2, -3 .ws 

3.2,-3 .051 

1.0,-1 .979 

7.5,-2 .947 

5.6,-2 .893 

4.2,-2 .822 3.2,-2 . 742 

2.4,-2 .648 

1.8,-2 .549 

1.3,-2 .431 

1.0,-2 .337 

7.5, -3 .241 

5.6, -3 .158 

4.2,-3 .095 3.2,-3 .052 2.4,-3 .024 

1.3,-1 0.864 

1.0, -1 .807 

7.5,-2 • 730 

3.2,-1 .987 

2.4,-1 .966 1.8,-1 .930 1.3,-1 .871 

1.0,-1 .810 

7.5,-2 .732 5.6,-2 .643 

2.4,-1 .977 

1.8,-1 .945 

1.3,-1 .885 1.0, -1 .821 

7.5,-2 . 737 

5.6,-2 .645 

4.2,-2 .552 3.2, -2 .468 2.4, -2 .384 
r/a 

0.60 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4.2,-2 

3.2, -2 2.4, -2 1.8,-2 

1.3, -2 1. 0, -2 

. 70 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2, -2 3.2,-2 

2.4,-2 

0.05 5.6,-1 

.10 5.6, -1 .15 5.6,-1 

.20 5.6,-1 

.25 5.6, -1 4.2, -1 

.30 4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 

.35 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

.40 3.2,-1 

2.4, -1 1.8,-1 

1.3, -1 1.0, -1 7.5, -2 

.45 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

.50 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 

0.05 5.6, -1 .10 5.6,-1 

.15 5.6,-1 

.20 5.6,-1 

.25 5.6,-1 

4.2,-1 

.30 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

.35 4.2, -1 3.2,-1 

2.4,-1 

1. 8,-1 

1.3,-1 

.40 4.2, -1 3.2,-1 

2.4, -1 

-~ II r/a 

0.975 0. 70 

.930 

.869 

. 780 

.675 

.569 

.475 

.387 .so 

.308 

.227 

.168 

.970 

.931 

.860 

. 761 

.648 

.538 

.428 

0.986 0.50 

.986 

.986 

.986 .60 

.987 

.976 

.979 

.963 

.938 

.901 

.984 

.968 

.941 

.903 . 70 

.842 

.976 

.949 

.908 

.844 

. 779 

.692 

.985 

.961 

.920 

. 852 .80 . 783 

.693 

.592 

.974 

.937 

.869 

. 795 

• 700 

.594 

8o=45°; !=0.35 8o 

[Pl. 17] 

0.984 0.40 

.984 

.984 

. 984 

.985 .45 . 974 

.989 

.977 

.959 

.931 

.891 

.50 

.983 

.964 

.935 

.893 

.826 

. 989 

.973 

. 944 

Tt 

TiS 

1.8, -2 1.3, -2 1. 0,-2 

7.5,-3 

5.6, -3 

4.2, -3 

1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2,-2 

2.4,-2 

1.8, -2 1. 3,-2 

1.0, -2 7.5,-3 

5.6,-3 

4.2, -3 

4.2,-2 

3.2, -2 2.4, -2 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 1.8,-2 

1.3, -2 1. 0,-2 

1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2, -2 3.2, -2 2.4,-2 

1.8, -2 1.3, -2 1.0,-2 

7.5,-3 

5.6, -3 

1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3, -2 1.0, -2 7.5,-3 

5.6, -3 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1. 0,-1 

7.5,-2 

-5.6,-2 

2.4,-1 

1.8, -1 1.3,-1 

1.0, -1 7.5,-2 

5.6, -2 4.2, -2 3.2, -2 2.4,-2 

1-~ so 

0.330 

.235 

.170 

.112 

.065 

.033 

.975 

.936 

.872 

. 786 

.690 

.580 

.467 

.340 

.244 

.154 

.085 

.040 

0.489 

.394 

.304 

.972 

.920 

• 850 

. 749 

.628 

.508 

.403 

.306 

.225 

.149 

.099 

.966 

.921 

.840 

.727 

.598 

.474 

.352 

.249 

.158 

.100 

.057 

.007 

. 971 

.927 

.853 

. 755 

.646 

.524 

.401 

.271 

.180 

.101 

.047 

0.899 

.829 

. 756 

.661 

.983 

.957 

. 912 

.837 

. 761 

. 662 

. 551 

.971 

.931 

.856 

. 774 

.669 

.553 

.438 

.336 

.241 

TABLES 

r/a 

0.60 

. 70 

0.05 

.10 

.15 

.20 

. 25 

.30 

.35 

.40 

.45 

.50 

0.05 

.10 

.15 

.20 

. 25 

.30 

.35 

Tt 

fi8 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

1.3, -1 1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

5.6,-1 

4.2,-1 

5.6,-1 

5.6,-1 

5.6,-1 

5.6,-1 

4.2,-1 

3.2,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1. 8,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 7.5,-2 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

2.4, -1 1.8, -1 1.3, -1 

7.5, -1 7.5,-1 

7.5, -1 5.6, -1 5.6, -1 

5.6, -1 4.2,-1 

3.2, -1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 

4.2,-1 

3.2, -1 2.4, -1 1.8,-1 

1.3, -1 

-~ II r/a 

0.969 0. 70 

.912 

.835 

. 723 

.591 

.459 

.345 .80 

.244 

.163 

.095 

. 055 

.962 

.913 

.823 

.699 

.558 

.422 

8 8o=45°; ~ =0.40 

[Pl.18] 

0.983 0.50 

.972 

.983 

.983 

.983 

.984 .60 

.972 

.955 

.988 

.975 

.956 

.927 

.884 

.982 

.962 

.930 . 70 .886 

. 815 

.989 

.972 

.940 

.892 

.817 

. 740 

.638 

.80 

.982 

.954 

.906 

.826 

. 745 

.639 

. 521 

.969 

.926 

.846 

8o=45°; !=0.45 8o 

[Pl.19] 

0.990 0.40 

.990 

.990 

.982 

.983 

. 984 

.971 

.953 .45 

.988 

.974 

.954 

.924 

.880 

.981 .50 

.960 

.928 

.881 

.808 

Tt 

'fi8 

2.4,-2 

1.8,-2 

1.3,-2 

1.0, -2 7.5,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4. 2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

7.5, -3 

5.6,-3 

1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 

1.8, -1 1.3, -1 1.0,-1 

7.5,-2 

5.6, -2 4.2,-2 

3.2, -2 2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

1.3, -1 1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 1.8,-2 

1. 3, -2 1. 0, -2 

1.3, -1 1.0, -·1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 1.8, -2 1.3,-2 

1.0,-2 

7.5,-3 

5.6,-3 

4.2,-1 

3.2,-1 

2.4, -1 1.8,-1 

1.3,-1 

1. 0,-1 

7.5, -2 

3.2, -1 2.4,-1 

1.8, -1 1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

3.2,-1 

2.4, -1 1.8,-1 

1.3,-1 

1. 0, -·1 

9 

1-~ so 

0.293 

.189 

.104 

.058 

.027 

.989 

.968 

.919 

.838 

. 730 

.611 

.479 

.351 

.223 

.139 

.072 

.031 

0. 759 

.647 

.523 

.401 

.294 

.197 

.967 

.906 

.824 

. 704 

.563 

.423 

.304 

.199 

.121 

.060 

.030 

.960 

.907 

.811 

.679 

.528 

.385 

.252 

.147 

.069 

.033 

.989 

.966 

.914 

.827 

. 712 

.586 

.447 

.316 

.192 

.115 

.058 

.024 

0.988 

.970 

.937 

.888 

.810 

. 730 

.624 

.981 

.952 

.902 

.820 

. 735 

.626 

.502 

.990 

.968 

.923 

.840 

. 750 
10 

r/a 

0.50 7.5,-2 

5.6,-2 

4.2, -2 3.2,-2 

2.4, -2 

.60 1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4.2, -2 3.2, -2 2.4,-2 

1. 8, -2 1.3,-2 

. 70 1.8, -1 1.3,-1 

1.0, -1 7.5,-2 

0.05 7.5,-1 .10 7.5, -1 .15 7.5,-1 

.20 7.5, -1 5.6, -1 

.25 5.6, -1 4.2, -1 3.2,-1 

.30 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 

.35 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 

.40 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 

.45 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6, -2 

. 50 3.2, -1 2.4, -1 1.8, -1 

0.05 5.6, -1 4.2, -1 

.10 5.6, -1 .15 5.6, -1 .20 5. 6,-1 

. 25 5.6, -1 4. 2,-1 

.30 4.2, -1 

.35 4.2, -1 3.2, -1 2.4, -1 

.40 3.2, -1 2.4, -1 1.8, -1 1.3,-1 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-~ II r/a 

11o=45°; ~=0.45-Continued 

0.634 0. 70 .505 

.379 

.269 

.170 

.965 

.902 

.817 .80 .693 

. 547 

.402 

.279 

.173 

. 096 

. 041 

.990 

.958 

.903 

. 804 

(J 

6o=45°; io=0.50 

[Pl. 20] 

0. 990 0.50 .990 

.990 

.990 

.982 

.984 

.971 .60 .952 

.988 

.974 

.954 

.923 

.878 

.981 

.960 

.927 

.880 . 70 .805 

.988 

.970 

.937 

.886 

.808 

. 726 

.619 

.981 .80 . 951 

.901 

.818 

. 732 

.621 

. 496 

.990 

.967 

.922 

(J 

6o=60°; 9;,=0.05 

[Pl. 21] 

0. 989 0.45 .984 

. 989 

.989 

. 989 

. 989 .50 .984 

.985 

.988 

. 980 

. 969 

.983 .60 .972 

. 957 

.938 

5.6,-2 0.667 4.2, -2 .511 3.2, -2 .363 2.4, -2 .226 1. 8, -2 .123 1.3, -2 . 051 1. 0,-2 .020 

1.3, -1 .988 1. 0,-1 .964 

7.5, -2 .911 

5.6, -2 .821 4.2,-2 . 701 3.2,-2 .570 2.4,-2 .428 1.8,-2 .296 1. 3,-2 . 175 1.0, -2 . 103 7.5,-3 . 051 5.6, -3 . 021 

1.3, -1 0.838 1.0, -1 . 747 7.5,-2 .629 

5.6,-2 .499 

4.2,-2 .372 3.2, -2 . 260 2.4,-2 .161 

2.4,-1 .990 

1.8, -1 .965 

1.3, -1 .901 

1.0, -1 .815 7.5,-2 .689 

5.6, -2 . 541 4.2, -2 .394 

3.2,-2 . 270 2.4, -2 .164 1.8, -2 .088 1.3, -2 .035 

1.8, -1 .990 

1.3, -1 .958 1. 0,-1 .902 

7.5,-2 .802 5.6,-2 .663 4.2,-2 .505 3.2,-2 .355 2.4,-2 . 218 1.8, -2 .115 1. 3,-2 .045 

1.3, -1 .988 1.0, -1 . 964 

7.5,-2 . 910 

5.6, -2 . 819 

4.2,-2 .698 

3.2, -2 . 565 2.4, -2 . 422 1.8, -2 . 289 

1.3, -2 .169 1. 0,-2 .100 7.5, -3 .050 

3.2, -1 0.988 

2.4, -1 . 977 1. 8, -1 . 961 

1.3, -1 .941 

1.0, -1 . 923 

7.5,-2 . 902 

2.4, -1 . 982 

1.8,-1 .968 

1.3, -1 .946 

1.0,-1 .926 

7.5, -2 .904 5.6, -2 . 881 4.2, -2 . 859 

3.2,-2 .837 

1.8, -1 .982 

1.3,-1 .963 

1.0, -1 . 943 

7.5,-2 . 917 

r/a 

0.60 5.6, -2 4.2, -2 3.2, -2 2.4, -2 1. 8, -2 1. 3, -2 

. 70 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4.2, -2 3.2,-2 

2.4, -2 1. 8, -2 1. 3,-2 

1. 0,-2 

7.5, -3 5.6,-3 

0.05 7.5, -1 .10 7.5, -1 .15 7.5, -1 .20 7.5, -1 

.25 7.5, -1 5.6, -1 4.2, -1 

.30 5.6, -1 4.2, -1 3.2, -1 2.4, -1 

.35 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 

. 40 4.2, -1 3.2, -1 2.4,-1 

1. 8, -1 1.3, -1 1.0, -1 

. 45 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

.50 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4,-2 

0.05 1.3,0 

.10 1.3,0 

1.0,0 

.15 1. 0, 0 

.20 1.0, 0 7.5, -1 

. 25 7.5,-1 

5.6, -1 4. 2, -1 3.2,-1 

.30 7.5, -1 5.6, -1 4.2, -1 3.2, -1 

r/a 

0.890 0.70 .864 

.839 

. 812 .80 . 783 

. 746 

.981 

.966 

.943 

. 917 

.888 

.858 

.825 

. 790 

. 748 

.712 

.669 

. 621 

6o=60°; ~=0.10 6o 

[Pl. 22] 

0.985 0.60 .985 

.985 

.985 

.987 

.979 

.968 

. 983 

.970 

.956 

.936 . iO 

. 988 

.976 

.960 

.938 

. 912 

.877 

.983 

.967 

.944 

.916 

.878 

.845 

.990 

.976 

.954 80 .924 

.883 

.847 

.806 

. 764 

.985 

.965 

.936 

.893 

.854 

.810 

. 765 

. 722 

. 681 

.633 

6o=60°;!!. =0.15 6o 

[Pl. 23] 

0.990 0.30 

.990 

.985 .35 .985 

. 986 

.979 

.981 

.969 .40 .953 

.933 

.987 

I 

.974 

.956 

.935 

1-!.. so 

4.2, -3 0.568 3.2, -3 .513 

1.0, -1 .985 

7.5,-2 .971 

5.6,-2 .952 

4.2,-2 .930 

3.2,-2 .904 

2.4, -2 .872 1. 8, -2 .834 1.3,-2 . 784 1. 0, -2 . 739 

7.5, -3 .686 

5.6, -3 .630 4.2,-3 .571 3.2, -3 . 514 2.4,-3 .450 1.8, -3 .383 

2.4,-1 0.985 1. 8,-1 .965 

1.3, -1 .927 1. 0,-1 .887 7.5,-:<: . 836 5.6,-:;; . 783 4.2,-~ . 732 3.2,-:;; .685 2.4,-:1: .635 1.8, -Z . 582 1. 3, -Z .517 1.0, -Z .460 

1.8, -1 .986 

1.3, -1 . 963 1. 0,-1 .932 

7.5, -2 .888 5.6,-2 .836 4.2,-2 . 779 3.2,-2 .722 2.4, -2 .660 1. 8, -2 .596 1. 3, -2 .522 1. 0, -2 .462 7.5, -3 .394 

5.6,-3 .323 4.2, -3 .254 3.2, -3 .191 

1.3, -1 .986 

1.0, -1 .970 

7.5,-2 .943 5.6,-2 .906 

4.2, -2 .861 3.2,-2 .812 2.4, -2 . 751 1.8, -2 .680 

1. 3, -2 .590 1. 0,-2 . 511 7.5, -.1 .424 5.6,-3 .338 4.2,-.1 .260 3.2, -.1 .193 

2.4,-3 .132 1. 8,-3 .082 

2.4, -1 0.906 

1.8, -1 . 870 

5.6,-1 .982 

4.2, -1 .964 

3.2,-1 .941 2. 4, -1 .909 

1.8, -1 .871 1.3, -1 .820 

5.6,-1 .990 

4.2, -1 .975 

3.2,-1 . 951 

2.4,-1 .918 

1.8, -1 .876 1.3, -1 .821 1.0, -1 . 772 7.5, -2 .715 
r/a 

0.45 

.50 

.60 

0.05 

.10 

.15 

.20 

.25 

.30 

.35 

.40 

.45 

.50 

0.05 

.10 

. 15 

4.2, -1 3.2,-1 

2.4, -1 1. 8,-1 

1.3, -1 1. 0,-1 

7.5, -2 5,6,-2 

3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2, -2 3.2, -2 2.4, -2 

2.4, -1 1.8, -1 1. 3,-1 

1. 0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4, -2 1.8, -2 1.3, -2 1.0, -2 

1.3, 0 1.3,0 

1.3,0 

I. 0, 0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

1. o, 0 7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

7.5, -1 5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1. 8, -1 

5.6,-1 

4.2, -1 3.2, -1 2.4,-1 

1. 8,-1 

1.3, -1 

5.6, -1 4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

4.2, -1 3.2, -1 2.4,-1 

1. 8,-1 

1. 3,-1 

1.0, -1 7.5, -2 5.6, -2 

4.2, -1 3.2, -1 

1.3,0 

1.3,0 

1. 3, 0 1. 0, 0 

1-~ so r/a 

8o=60°; io =O.Is:-Continued 

0. 985 0. 70 . 965 

.932 

.888 

.828 

. 776 

.716 

.655 

.977 

.949 

.906 

.843 

. 786 

. 721 

.657 

. 596 . 80 . 538 

.476 

.979 

.948 

.893 

.834 

. 760 

. 683 

.610 

. 545 

.478 

.410 

.332 

. 269 

f) 

fJo=60°; eo=0.20 

[Pl. 24] 

0.987 0.50 . 987 

. 987 

. 981 

.989 

. 982 

. 972 

.958 

.987 .60 .976 

.960 

.939 

.913 

. 984 

.967 

.944 

. 915 

.878 

.832 

.977 . 70 . 954 

.923 

.882 

.833 

. 767 

.987 

.967 

.937 

.893 

.839 

. 769 

. 706 

.632 .80 

.980 

. 955 

.912 

.855 

. 778 

.710 

.634 

.557 

.989 

.971 

f) 

8o=60°; Oo =0.25 

0. 984 

. 984 

.985 

. 977 

[Pl. 25] 

0.20 

Tt 

T28 

1.8, -1 1.3, -1 1. 0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8, -2 1.3, -2 1.0, -2 7. 5,-3 

5.6,-3 

4.2,-3 

3.2,-3 

1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4,-2 

1. 8,-2 

1.3, -2 1. 0,-2 

7.5, -3 5.6, -3 4.2, -3 3.2, -3 2.4, -3 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3,-2 

1.0, -2 

1.8, -1 1.3, -1 1. o, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8, -2 1.3, -2 1.0, -2 7.5, -3 5.6,-3 

1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2,-2 

3.2, -2 2.4, -2 1. 8, -2 1. 3,-2 

1.0, -2 7.5, -3 5.6, -3 4.2, -3 

1.3, 0 1. 0, 0 

7.5, -1 

5.6, -1 

1-~ so 

o. 980 

. 945 

.901 

.836 

. 759 

.678 

. 598 

.513 

. 429 

.339 

. 271 

. 202 

.139 

. 088 

. 051 

. 980 

.956 

.916 

.862 

. 797 

. 727 

.642 

. 547 

. 431 

.337 

. 241 

.158 

.095 

. 052 

.024 

0.934 

.878 

. 797 

.723 

.640 

.559 

.483 

.414 

.343 

.972 

.933 

.861 

. 785 

.690 

.592 

.501 

.422 

.346 

.274 

.197 

.142 

.974 

. 929 

.871 

. 788 

.689 

.586 

.489 

.389 

.297 

.206 

.144 

.090 

.050 

. 974 

.943 

. 891 

.821 

. 739 

. 651 

.549 

.439 

. 314 

.220 

.133 

.069 

.030 

0.987 

.979 

. 967 

.950 

TABLES 

r/a 

0. 25 

. 30 

.35 

. 40 

.45 

. 50 

0.05 

.10 

.15 

. 20 

. 25 

.30 

.35 

.40 

. 45 

1. 0, 0 7. 5,-1 

5.6, -1 4.2, -1 3.2,-1 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1. 8, -1 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1. 8,-1 

1.3, -1 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0,-1 

7.5, -2 5.6, -2 

4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

1. 8, 0 1.8, 0 

1.8, 0 1. 3, 0 1. 0, 0 

1. 3,0 

1. 0, 0 7.5, -1 5.6, -1 

1. 0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3,-1 

1.0, -1 

5.6,-1 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3,-1 

1.0, -1 7.5,-2 

4.2,-1 

3.2, -1 

·-i. II r/a 

8 8o=60°; 6o =0.2s:-Continued 

0.985 0.50 . 971 

.952 

.927 

.896 .60 . 980 

.960 

.932 

.898 

.854 

. 797 

.989 

. 972 

.944 

.907 

.858 

. 799 

.719 . 70 

. 984 

. 961 

. 924 

.872 

.807 

. 722 

.647 

.559 

.976 

. 945 

.894 

.825 .80 . 733 

.652 

. 561 

. 470 

. 987 

. 965 

. 921 

. 854 

. 756 

.667 

.569 

8o=60°; !=0.30 

llo 

[Pl. 26] 

0.989 0.45 . 989 

. 990 

. 982 

. 974 

. 985 .50 . 976 

. 962 

. 942 

. 983 

.967 

.945 

. 916 

.881 

.977 

.954 .60 . 922 

.884 

.832 

. 768 

. 988 

• 968 

.936 

.894 

.838 

. 770 

.679 

. 595 . 70 

.982 

.955 

. 914 

.853 

. 779 

. 682 

.596 

. 498 

.973 

. 937 

11 

1-~ so 

5.6,-2 0.473 4.2, -2 .386 3.2, -2 .311 2.4, -2 .239 

3.2,-1 .990 2.4, -1 .967 1.8, -1 .920 1.3,-1 .833 1.0, -1 . 741 7.5, -2 .628 5.6, -2 . 512 4.2,-2 .407 3.2,-2 .320 2.4,-2 .241 1.8, -2 .173 1. 3,-2 .109 1. 0,-2 .067 

1.8, -1 .969 1.3, -1 .915 1.0, -1 .845 7.5,-2 . 745 5.6,-2 .628 4.2, -·2 .507 3.2,-2 .397 2.4,-2 .290 1.8, -2 .199 1.3, -·2 .117 1.0, -2 .070 7.5, -3 .035 

1. 3, -1 . 969 1. 0,-1 .932 7.5,-2 .869 5.6,-2 . 785 4.2, -2 .688 3.2, -·2 . 587 2.4, -2 .473 1.8, -2 .358 1.3, -·2 . 235 1. 0,-2 .150 7.5, -3 . 080 5.6, -3 . 035 

2.4, -1 0.879 1.8, -1 .800 1.3, -1 .694 1.0, -1 .602 7.5, -2 .499 5.6, -2 .398 

4.2, -1 .985 3.2,-1 .960 2.4, -1 .909 1.8,-1 .832 1.3, -1 . 720 1. 0,-1 .620 7.5,-2 .508 5.6, -·2 .401 4.2,-2 .307 3.2, -2 . 230 2.4,-2 .161 

3.2, -1 .988 2.4, -1 .962 1. 8,-1 .908 1.3, -·1 .809 1. 0,-1 . 704 7.5, -2 .575 5. 6, --2 . 445 4.2, -2 .330 3.2, -2 .240 2. 4,--2 .164 1.8,-2 .104 1. 3, --2 .055 1. 0, --2 .029 

2.4, -1 .989 1.8, -1 .964 1.3,-1 .903 1. 0,-1 .823 7.5,-2 . 709 5.6, -2 . 576 

4.2, -2 .442 3.2, -2 .324 

2.4,-2 .216 

1.8,-2 .131 1.3,-2 .065 1.0,-2 .032 
12 

r/a 

0.80 

0.05 

.10 

.15 

.20 

. 25 

.30 

.35 

.40 

.45 

0.05 

.10 

.15 

.20 

.25 

Tt 

f28 

1.3,-1 

1. 0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 

1. 8, 0 1 8,0 

1.8,0 

1. 3, 0 1. 0, 0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

1. 0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1. 8,-1 

1.3, -1 1. 0,-1 

5.6, -1 4.2, -l 3.2, -l 2.4,-1 

1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

1.8, 0 

1. 8, 0 

1.8, 0 1.3, 0 1. 0, 0 

1.3, 0 1. 0, 0 7.5, -1 5.6, -1 4.2, -1 

1. 0, 0 7.5, -1 5.6, -1 4.2, -1 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-~ II r/a 

8o= 60°; fa =0.30-Continued 

0.964 0.80 .922 

.851 

. 755 

.645 

. 534 

8o=60°; !=0.35 

8o 

[Pl. 27] 

0.988 0. 50 .988 

. 988 

.980 

.971 

. 984 

.973 

.958 

.936 

. 981 .60 .964 

.939 

.908 

.869 

.975 

.950 

.914 

.872 

.816 

. 745 

.987 . 70 .965 

.930 

.883 

.821 

. 747 

.647 

. 555 

.980 

.951 

.905 

.838 .so . 757 

.650 

.556 

.448 

. 970 

.931 

.866 

. 780 

.663 

. 562 

.450 

.341 

.246 

8 8o=60°; 8;,=0.40 

[Pl. 28] 

0.987 0.25 

.987 .30 

.988 

.979 

.969 

.983 

. 972 

. 955 .35 .932 

.901 

.980 

.961 

.935 

.902 

Tt 

f28 

2.4, -2 1. 8, -2 1.3, -2 1.0,-2 

7.5, -3 5.6,-3 

4.2, -1 3.2, -1 2.4, -1 1.8,-1 

1.3, -1 1.0,-1 

7.5, -2 5.6, -2 4.2,-2 

3.2,-2 

2.4,-2 

3.2, -1 2.4, -1 1.8,-1 

1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1. 3, -2 

2. 4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2,-2 

3.2,-2 

2.4, -2 1. 8, -2 1. 3, -2 

1.8, -1 1.3, -1 1.0, -1 7.5.-2 

5.6,-2 

4.2, -2 3.2,-2 

2.4, -2 1. 8, -2 1.3,-2 

1. 0,-2 

7.5, -3 

3.2, -1 2.4, -1 

1. 0, 0 7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 

0.416 

.301 

.187 

.114 

.058 

.024 

0.984 

.956 

. 900 

.815 

.692 

.581 

.460 

.345 

.246 

.169 

.106 

. 987 

.958 

.899 

. 790 

.674 

.533 

.392 

.271 

.180 

.109 

.060 

.026 

.988 

.960 

.893 

.805 

.679 

.534 

.391 

. 269 

.164 

.088 

.036 

.989 

.961 

. 914 

.835 

. 730 

.611 

. 494 

.374 

.264 

.161 

.097 

. 050 

0.860 

.802 

. 989 

. 973 

.946 

.909 

. 863 

.803 

. 728 

.986 

.963 

. 925 

.875 

.809 

. 730 

.623 

. 526 

r/a 

0.40 

.45 

. 50 

. 60 

0.05 

.10 

.15 

. 20 

.25 

.30 

. 35 

.40 

.45 

Tt 

;:28 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 4.2, -2 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 2. 4, -2 

3.2, -1 2.4, -1 

1. 8, 0 1. 8, 0 

1.8, 0 1.3, 0 1. 0, 0 

1.3, 0 1. 0, 0 7.5,-1 

5.6,-1 

4.2,-1 

1.0, 0 7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4, -1 

1.0, 0 7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1. 0,-1 

5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 

r/a 

8 8o=60°; iio =0.40-Continued 

0.979 0.60 .947 

.898 

.827 

. 740 

.627 

.527 

.413 

.990 

.968 . 70 .926 

.857 

. 765 

.641 

. 533 

.415 

.301 

.202 

• 983 

.953 

.893 .so .803 

.672 

. 554 

.424 

.304 

. 203 

.128 

. 071 

.986 

.955 

[Pl. 29] 

0.986 0.45 .986 

.987 

.978 .50 .968 

.982 

.971 

.953 

.930 

.897 

.979 

.960 

.933 

.898 

.855 .60 . 795 

.989 

.972 

.944 

. 905 

.858 

. 796 

.717 

.985 

.962 . 70 .922 

.871 

.802 

. 720 

.609 

. 508 

.978 

.945 

.894 

.821 .80 . 730 

.613 

.509 

.391 

.989 

.967 

.924 

.852 

. 756 

.627 

.516 

Tt 

f28 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8, -2 

2.4, -1 1.8,-1 

1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8, -2 1.3, -2 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8, -2 1.3, -2 1. 0, -2 7.5, -3 

7.5,-2 

5.6,-2 

4.2, -2 

4.2, -1 3.2,-1 

2.4, -1 1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4, -2 1.8, -2 

3.2,-1 

2. 4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -z 

2.4,-l 

1.8, -1 1.3, -1 1.0, -l 7.5,-~ 

5.6,-~ 

4.2,-~ 

3.2,-~ 

2.4,-2 

1.8,-~ 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3, -2 1. 0,-2 

7.5,-3 

1-!. so 

0.892 

. 775 

.652 

.502 

.354 

. 228 

.139 

.074 

.035 

.987 

.958 

.885 

. 792 

.658 

. 504 

.355 

.231 

.130 

.062 

. 021 

.989 

.958 

.908 

.824 

.712 

.587 

.466 

.346 

.242 

.147 

.090 

.047 

0.393 

.276 

.177 

.982 

.951 

.889 

. 795 

.659 

.537 

.403 

.279 

.178 

. 104 

.051 

.021 

.986 

.953 

.888 

. 767 

.639 

.483 

.330 

. 203 

.ll5 

.054 

.021 

.987 

.956 

.881 

. 784 

.645 

.486 

.333 

.209 

.Ill 

.049 

.988 

.956 

.905 

.818 

. 702 

.572 

.450 

.331 

.230 

.141 

.088 

.046 
r/a 

0.05 

.10 

.15 

.20 

.25 

.30 

.35 

. 40 

.45 

0.05 

.10 

.15 

.20 

.25 

.30 

.35 

.40 

. 45 

.50 

Tt 

Ti8 

1.8,0 

1. 8, 0 

1.8,0 

1.3, 0 

1. 0, 0 

1.3,0 

1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

1.0,0 

7.5,-1 

5.6,-1 

4. 2, -1 3.2, -1 2.4,-1 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 

5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1.8,-1 

1.3, -1 

1. 0, 0 

1.0,0 

1.0,0 

1.0,0 

7.5, -1 

7.5, -1 5.6,-1 

4.2, -1 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4, -1 1.8,-1 

4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -l 

7.5,-2 

3.2,-1 

2.4,-1 

791-598 0-66-3 

,_~ II r/a 

8o=60°; !=0.50 

8o 

[Pl. 30] 

0.986 0.45 

.986 

.987 

.978 

.968 .50 

.982 

.970 

.953 

.929 

.896 

.979 

.959 

.932 

. 897 

.853 .60 . 792 

.989 

.972 

.943 

.904 

.856 

. 793 

. 714 

.985 . 70 

.961 

. 921 

.869 

.800 

.716 

.604 

.502 

.978 

.944 

. 893 .80 

.819 

. 727 

.608 

.503 

.384 

.989 

.966 

.923 

.850 

. 753 

.623 

[Pl. 31] 

0.987 0.50 

.987 

.987 

.988 

.983 

.984 

.977 

.968 .60 

.988 

.980 

.970 

.958 

.985 

.974 

.961 

.946 

. 930 

.980 

.967 . 70 

.950 

.932 

. 910 

.987 

.975 

.958 

.937 

. 913 

.892 

.870 

.982 

.967 

TABLES 

r/a 

0.80 

1.0, -1 0.510 

7.5,-2 .386 5.6,-2 .268 

4.2,-2 .168 

4.2, -1 .982 

3.2,-1 .950 

2.4, -1 .888 

1.8, -1 . 793 

1.3, -1 .655 

1.0, -1 .531 

7.5,-2 .396 5.6, -2 . 271 

4.2,-2 .169 

3.2,-2 .096 2.4, -2 .045 0.05 

.10 

3.2, -1 .985 

2. 4,-1 .953 .15 

1.8, -1 .887 

1.3, -1 . 764 

1.0, -1 .634 .20 

7.5,-2 .477 

5.6,-2 .323 

4.2,-2 .195 

3.2,-2 .107 

2.4,-2 .048 .25 

2. 4,-1 .987 

1.8,-1 .956 

1.3, -1 .880 

1.0, -1 . 781 

7.5,-2 .641 

5.6,-2 .480 .30 

4.2,-2 .326 

3.2, -2 . 202 

2. 4,-2 .105 

1.8, -2 .045 

1.8, -1 . 988 1.3, -1 .956 .35 

1. 0,-1 .904 

7.5,-2 .815 

5.6, -2 .698 

4.2,-2 .568 3.2,-2 .444 

2.4, -2 .325 

1. 8,-2 .226 

1.3,-2 .139 .40 

1.0,-2 .087 

7.5,-3 .046 

.45 

1. 8,-1 0.946 

1.3,-1 . 919 

1.0, -1 .897 

7.5,-2 .872 

5.6,-2 .847 

4.2,-2 .822 .50 

3.2,-2 . 796 

2.4,-1 .984 

1.8,-1 .968 1.3, -1 . 942 

1.0, -1 . 918 

7.5,-2 .889 

5.6,-2 .859 

4.2,-2 .828 

3.2,-2 . 799 

2.4, -2 . 766 1. 8,-2 . 731 0. 05 

1.3, -2 .685 

1. 0, -2 .644 .10 

1.8, -1 . 985 

1.3, -1 .968 .15 

1.0, -1 .948 

7.5,-2 .922 

5.6, -2 .892 

4.2, -2 .858 

3.2, -2 .823 .20 

2.4,-2 . 782 

1.8,-2 . 740 

1.3, -2 .689 

1.0,-2 .645 

7.5,-3 .594 

5.6,-3 .537 

4.2,-3 .475 

3.2,-3 .414 

.25 

1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 

1.8,0 

1.8,0 

1.8,0 

1.3,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 3.2, -1 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

5.6,-1 

4.2, -1 

3.2, -1 2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 

5.6, -1 

4.2,-1 

3.2,-1 

2.4 -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 

2. 4, 0 

2.4, 0 

1.8, 0 

2.4, 0 

1.8, 0 

1. 3, 0 

1. 0, 0 

1.8, 0 

1.3, 0 

1. 0, 0 

7.5, -1 5.6, -1 

1.3, 0 

1.0, 0 

7.5, -1 

'-io II r/a 

8 8o=75°; 60=0.05-Continued 

0.987 0.80 . 975 

.958 

.937 

.911 

.880 

.841 

. 794 

0.987 0.50 

.987 

.988 

.981 

.984 

.976 

.966 .60 

.953 

.990 

.981 

.969 

.954 

.937 

. 917 

.989 

.977 

.960 

.940 

.918 . 70 

.891 

.986 

.970 

.949 

.924 

.894 

.861 

.821 

.981 

.001 

.935 

.902 

.866 

.822 

. 785 .80 

.989 

.974 

.950 

.916 

.877 

.828 

. 788 

. 745 

. 700 

.984 

.965 

.934 

.894 

(J.. 

6o=75°; 60=0.15 

[Pl. 33] 

0. 986 0.25 

.986 

.981 

.30 .988 

.982 

.973 

.963 

.987 

.976 

.965 .35 .950 

.930 

.985 

.973 

.955 

13 

1-!. 80 

1.3,-2 0. 733 

1.0,-2 .678 

7.5,-3 .614 

5.6,-3 .547 

4.2,-3 .480 

3.2,-3 .415 

2.4,-3 .345 

1.8,-3 .276 

1.3, -1 0.841 

1.0, -1 . 797 

7.5,-2 • 749 

5.6, -2 .701 

4.2, -2 .654 

3.2,-2 .606 

2.4, -2 .551 

3.2,-1 .987 

2.4,-1 .968 

1.8,-1 .936 

1.3,-1 .886 

1.0, -1 .838 

7.5,-2 . 782 

5.6,-2 .723 

4.2,-2 .666 

3.2,-2 .612 

2.4, -2 .553 

1.8,-2 .492 

1.3,-2 .418 

1.0, -2 .356 

2.4,-1 .989 

1.8,-1 .971 

1.3, -1 .937 

1.0,-1 .898 

7.5,-2 .847 

5.6,-2 • 788 

4.2, -2 . 723 

3.2,-2 .657 

2.4,-2 .584 

1.8, -2 .509 

1.3,-2 .425 

1.0,-2 .358 

7.5, -3 .287 

5.6, -3 .217 

4.2,-3 .1M 

3.2,-3 .103 

1.3, -1 .974 

1.0, -1 .951 

7.5, -2 .918 

5.6, -2 .876 

4.2, -2 .825 

3.2, -2 . 767 2.4, -2 .695 

1.8,-2 .611 

1.3,-2 .505 

1.0, -2 .417 

7.5,-3 .322 

5.6,-3 .234 

4.2,-3 .161 

3.2,-3 .105 

2.4,-3 .060 

1.8,-3 .030 

5.6, -1 0.933 

4.2,-1 .907 

3.2,-1 .877 

1.0,0 .983 

7.5,-1 .966 

5.6,-1 .942 

4.2,-1 .912 3. 2,-1 .880 

2. 4,-1 .840 

1.8, -1 • 795 

7.5, -·1 .979 5.6,-1 .956 

4.2,-1 .925 

3.2, -·1 .888 

2. 4,-1 .844 

1.8,-1 • 797 

1.3,-1 . 737 
14 

r/a 

0. 40 

.45 

. 50 

.60 

0.05 

.10 

.15 

.20 

. 25 

.30 

.35 

.40 

.45 

Tt 

;:28 

7.5,-1 

5.6, -1 4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2 -1 3.2 -1 2.4,-1 

1.8, -1 1.3,-1 

1. o, -1 7.5,-2 

5.6, -2 4.2,-2 

3.2,-2 

2.4,-2 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

3.2,0 

3.2,0 

2.4,0 

2.4, 0 1. 8, 0 1.3,0 

1.0,0 

1.8, 0 1.3,0 

1.0,0 

7.5, -1 5.6,-1 

1.3,0 

1. 0, 0 7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8,-1 

1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 

5.6,-1 

4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-;. II r/a 

6 6o=75°; 00 =0.15-Continued 

0.989 0.60 .972 

.943 

. 905 

.856 

.803 

. 739 

.686 

.627 . 70 

. 984 

.961 

.927 

.877 

.819 

. 748 

.690 

.628 

.565 

.977 

.949 

. 90.'1 

.844 

. 7n7 .80 . 703 

.634 

.567 

. 50.~ 

.441 

.373 

.981 

.953 

.906 

.833 

. 763 

.682 

6 6o=75°; o;;=O.ZO 

[Pl. 34] 

0.987 0.45 

.988 

.982 .50 

.985 

. 977 

.964 

.952 

.984 

.969 

.954 

. 935 

.910 

.980 .60 .964 

.941 

.913 

.879 

.841 

.979 

.956 

.924 

.886 

.844 

. 794 

. 735 

. 990 . 70 

. 973 

.943 

. 902 

.855 

. 799 

. 737 

.661 

. 986 

.964 

.926 

.877 

.814 .80 . 745 

. 664 

. 596 

. 522 

.980 

.950 

. 905 

.841 

. 766 

.675 

.601 

Tt 

;:28 

5.6, -2 4.2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3, -2 1. 0,-2 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4. 2,-2 

3.2, -2 2.4,-2 

1.8, -2 1.3, -2 1.0,-2 

7.5,-3 

5.6, -3 4.2,-3 

1.8, -1 1.3,-1 

1. 0,-1 

7.5, -2 5.6,-2 

4.2, -2 3.2, -2 2. 4,-2 

1.8,-2 

1. 3, -2 1.0,-2 

7.5,-3 

5.6, -3 4.2,-3 

7.5,-2 

5.6,-2 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

·3.2, -2 2.4, -2 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 1. 5, _:2 

5.6,-2 

4.2, -2 3.2, -2 2.4,-2 

1.8, -2 1.3, -2 1.0,-2 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4,-2 

1. 8, -2 1.3, -2 1.0, -2 7.5, -3 

1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 4.2, -2 3.2,-2 

2.4,-2 

1.8,-2 

1.3, -2 1. 0,-2 

7.5,-3 

5.6,-3 

1-.!. so r/a 

0.599 

.520 

.448 

.376 0.05 .304 

.226 .10 .168 

.983 

.957 

.907 .15 .851 

. 777 

.692 

.601 

. 512 

. 417 .20 .326 

.234 

.170 

.112 

.065 

.033 .2!) 

.986 

.001 

.928 

.880 

.818 

. 746 

.667 

.570 

.464 .30 

.339 

. 244 

.154 

.085 

.040 

.35 

0. 523 

.447 

.970 

.934 

.875 .40 

. 798 

.699 

.617 

.531 

.450 

.375 

.307 

. 238 

.975 .45 

.939 

.878 

. 784 

.694 

.591 

.489 

.395 

.316 

.240 

.173 

.109 

.067 

.978 

.945 

0.05 

.10 

.879 

.807 

.712 

.606 

.496 .15 

.393 

.289 

.198 

.117 

.070 

.035 .20 

.982 

.950 

. 907 

.845 

. 767 

.677 

.582 

.472 .25 .358 

.235 

.150 

.080 

.035 

·-~ II r/a 

[Pl. 35] 

4. 2,0 0.989 0.45 

4.2,0 .990 

3.2,0 . 985 2.4,0 .979 1. 8, 0 .970 

3. 2,0 .990 .50 2.4,0 .982 

1.8, 0 .972 1. 3,0 .957 1. 0, 0 .942 

1.8,0 .980 1. 3,0 .963 1. 0, 0 .945 

7.5, -1 .922 

5.6, -1 .892 

4.2, -1 .854 

1.3,0 . 976 .60 1.0,0 .957 

7.5,-1 .929 5.6, -1 .895 4. 2,-1 .855 3.2,-1 .809 2.4,-1 . 751 

1.3,0 .989 1. 0,0 .974 

7.5, -1 .947 

5.6, -1 .909 4.2, -1 .863 3.2, -1 . 813 2.4, -1 . 752 . 70 1.8, -1 .682 

1.0,0 .988 

7.5, -1 .968 

5.6, -1 . 932 

4.2, -1 .882 3.2,-1 .826 2.4, -1 . 758 1.8, -1 .684 1. 3,-1 .594 1. 0,-1 . 517 

7.5, -1 .983 .80 5.6, -1 .956 

4.2, -1 .911 

3.2, -1 .852 2.4, -1 . 777 1.8, -1 .694 

1.3, -1 .597 

1.0, -1 . 518 7.5, -2 .432 

5.6, -1 .976 4.2,-1 .940 3.2, -1 .886 2.4,-1 .809 

[Pl. 36] 

4.2,0 0.987 0.30 

4.2,0 .988 3.2,0 .983 

2.4,0 .976 1.8,0 .006 

3.2,0 .988 

2.4,0 .979 1.8,0 .968 

1.3,0 .951 .35 1.0,0 .934 

7.5,0-1 .909 

2.4,0 .990 1.8,0 .978 

1.3,0 .958 1. 0, 0 .937 

7.5, -1 .910 

5.6,-1 .876 4.2, -1 .833 .40 

1.3,0 .973 

1.0,0 .951 

7.5, -1 .919 

5.6,-1 .880 4.2, -1 .834 3.2, -1 . 782 2.4,-1 .715 

1-.!. so 

1.8, -1 0. 718 1.3, -1 .610 1.0, -1 .523 7.5,-2 -.433 

5.6,-2 .348 4.2,-2 . 271 

5.6,-1 .988 4.2,-1 .964 3.2, -1 .920 

2.4,-1 .849 

1.8,-1 . 757 1.3, -1 .639 

1.0, -1 .542 7.5,-2 .442 5.6,-2 .351 4.2,-2 .272 3.2,-2 .205 2.4,-2 .142 

3.2, -1 .970 

2.4,-1 .926 

1.8,-1 .853 1.3, -1 . 740 1.0,-1 .634 7.5,-2 .513 5.6,-2 .396 4.2,-2 .295 

3.2,-2 .215 2.4,-2 .145 1.8,-2 .091 1. 3, -2 .046 

2.4, -1 .974 

1.8,-1 .934 

1.3,-1 .855 1. 0,-1 . 768 7.5,-2 .656 5.6,-2 .532 4.2, -2 .410 3.2,-2 .301 2.4,-2 .199 1. 8,-2 .118 1.3, -2 .055 1. 0, -2 .026 

1.8, -1 .978 

1.3, -1 .940 1.0, -1 .888 7.5,-2 .814 5.6,-2 .722 4.2,-2 .620 3.2,-2 . 516 2. 4,-2 .401 1.8, -2 .290 

1. 3, -2 .179 

1.0,-2 .109 

7.5, -3 .055 5.6,-3 .023 

1.3,0 0.987 

1.0,0 .970 

7.5,-1 .940 

5.6,-1 .896 

4.2, -1 .843 3.2,-1 . 786 2.4,-1 .716 1.8, -1 .637 

1.0,0 .986 

7.5,-1 .963 5.6,-1 .922 

4.2,-1 .866 

3.2,-1 .801 2.4, -1 • 723 

1.8, -1 .639 

1.3, -1 .537 1.0, -1 .451 

7.5,-1 .981 

5.6,-1 .950 

4.2,-1 .898 

3.2,-1 .830 

2.4,-1 . 745 1.8,-1 .651 1.3, -1 .541 1.0, -1 .452 7.5, -2 .357 
r/a 

0.45 

.50 

.60 

0.05 

.10 

.15 

.20 

. 25 

.30 

.35 

. 40 

Tt 

T28 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 

4.2, -1 3.2, -1 2.4,-1 

1. 8, -1 1. 3,-1 

1.0, -1 7.5,-2 

4. 2,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 

1.8,0 

1.3,0 

1. 0, 0 7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 

1. 3, 0 1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1. 8,-1 

1. 0, 0 7.5, -1 5.6,-1 

4. 2,-1 

3.2, -1 2.4, -1 1. 8,-1 

1.3, -1 1. 0,-1 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8,-1 

1.3, -1 1.0, -1 7.5, -2 

,_~ II r/a 

Oo=75°; !!.=0.36-Continued Oo 

0. 972 0.60 

. 931 

.869 

. 781 

.678 

.555 

.458 . 70 .359 

.269 

.193 

.986 

.959 

.909 

.827 

. 722 

.588 

.479 

.369 .80 . 272 

.193 

.132 

.081 

.989 

.966 

.916 

.832 

. 703 

.582 

.447 

[Pl. 37] 

0.986 0.45 

.987 

. 981 

. 973 

. 963 

.987 

.977 

.964 

.946 

. 927 . 50 .900 

. 989 

. 975 

.953 

.931 

.901 

.863 

. 816 

.989 

.970 

. 946 . 60 . 911 

. 868 

.817 

. 760 

. 687 

. 986 

.967 

.933 

. 885 

.827 

. 764 . 70 .688 

. 601 

. 985 

. 959 

.914 

. 852 

. 780 

. 696 

. 604 

.492 .80 .399 

. 979 

.945 

.888 

. 813 

.719 

. 616 

.496 

.400 

.300 

Tt 

T28 

5.6, -2 4.2, -2 3.2,-2 

2.4, -2 1. 8,-2 

2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 4.2, -2 3.2,-2 

2.4,-2 

1. 8,-2 

1.3, -2 

1.8, -1 1.3, -1 I. 0,-1 

7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4,-2 

1.8, -2 1. 3,-2 

1. o, -2 7.5,-3 

5.6,-1 

4.2, -1 3.2,-1 

2.4, -1 1. 8,-1 

1. 3,-1 

1.0, -1 7.5,-2 

5.6,-2 

4.2, -2 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2, -2 2.4,-2 

4.2, -1 3.2,-1 

2.4, -1 1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 

2.4, -1 1.8, -1 1. 3,-1 

1. 0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4, -2 1. 8, -2 

1.8, -1 1. 3,-1 

1. 0,-1 

7.5, -2 5.6, -2 4.2,-2 

3.2,-2 

2.4,-2 

1. 8,-2 

1. 3,-2 

1. 0,-2 

7.5,-3 

0.322 

.218 

.142 

.084 

.044 

.970 

.924 

.834 

. 735 

.608 

.472 

.343 

.234 

.140 

.072 

.027 

.975 

. 931 

.872 

. 787 

.684 

. 574 

.466 

.353 

.250 

.152 

.093 

.048 

0.969 

. 924 

.856 

. 759 

.646 

.511 

.407 

.302 

. 210 

.136 

. 985 

.955 

.899 

.810 

.694 

. 547 

.429 

. 312 

. 213 

.137 

. 083 

.044 

. 988 

. 963 

. 907 

.815 

. 673 

.542 

.396 

.265 

.163 

.094 

.047 

.967 

.916 

. 817 

. 709 

.571 

.426 

.294 

.189 

.104 

.048 

.972 

.924 

.860 

. 766 

.655 

.539 

.431 

.324 

.229 

.141 

.088 

.046 

TABLES 

r/a 

0.05 

.10 

.15 

. 20 

.25 

.30 

.35 

. 40 

0. 05 

.10 

.15 

.20 

.25 

Tt 

T28 

5.6,0 

4. 2,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

3.2,0 

2.4,0 

1.8,0 

1. 3, 0 1.0,0 

7.5, -1 

2.4,0 

1.8,0 

1.3, 0 1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

1.8,0 

1.3,0 

1. 0, 0 7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 

1.3, 0 1. 0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2, -1 2.4, -1 1.8, -1 

1. 0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0,-1 

7.5. -1 5.6, -1 4.2, -1 3.2, -1 2.4. -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, 0 4.2. 0 

4.2, 0 3. 2, 0 2.4, 0 1. 8, 0 

3.2, 0 2.4, 0 1. 8, 0 1. 3, 0 1.0, 0 7.5, -1 2.4,0 

1. 8, 0 1.3, 0 1. 0, 0 7.5, -1 5.6, -1 4.2, -1 

1.8, 0 1.3,0 

1.0,0 

7. 5,-1 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 

'-1 II r/a 

[Pl.38) 

0.989 0.45 .985 

.986 

.980 

.971 

.960 

.986 

.976 

.962 

.943 .50 .922 

.893 

.988 

.974 

.950 

.926 

.894 

.854 

.804 

.988 

.968 .60 . 943 

.905 

.859 

.805 

. 744 

.666 

.985 

.965 

.929 

.878 

.815 . 70 . 748 

.667 

. 575 

.983 

.956 

.908 

.842 

. 766 

.675 

.577 

. 459 .80 .361 

.978 

.941 

.880 

.801 

. 700 

. 590 

.463 

.362 

.259 

Oo=75°;!!. =0.45 Oo 

[Pl. 39] 

0.989 0.30 .985 

.985 

. 979 

. 970 

. 959 

. 986 

.975 

.961 .35 .940 

.919 

. 889 

. 987 

. 973 

. 948 

.923 

.890 

.849 

. 796 .40 

.988 

.967 

.940 

.901 

.854 

. 798 

. 734 

.653 

Tt 

T28 

5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1.8,-1 

1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 l.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4, -2 

4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2,-2 

3.2,-2 

2.4,-2 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5, -2 5.6-,2 

4.2, -2 3.2, -2 2.4, -2 1. 8,-2 

1.8, -1 1.3,-1 

1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2. 4t -2 1.8, -2 1.3, -2 1. 0,-2 

7.5, -3 

1.3, 0 1.0, 0 7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 

1.0, 0 7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1. 8,-1 

1.3, -1 1. 0, -1 7.5,-2 

15 

1-!. 80 

0.967 

.919 

.846 

. 743 

.622 

.480 

.370 

.261 

.169 

.099 

.984 

.951 

.893 

. 797 

.674 

.518 

.393 

.272 

.172 

.100 

.053 

.024 

.987 

.960 

.901 

.803 

.652 

.512 

.360 

.226 

.126 

.064 

.027 

.990 

.965 

.911 

.805 

.690 

.544 

.394 

.261 

.160 

.084 

.037 

. 971 

.919 

.850 

. 751 

.634 

.515 

.408 

.306 

. 218 

.137 

. 087 

.046 

0.985 

.964 

.926 

. 873 

.808 

. 739 

.654 

.559 

.983 

.955 

.905 

.836 

. 757 

.663 

.561 

.439 

.339 

. 977 

.939 

.875 

. 793 

.689 

.575 

.443 

.340 

.234 
16 

r/a 

0.45 7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 4.2, -2 

. 50 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 

.60 4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 1.3, -1 

0.05 5.6,0 

4.2,0 

.10 4.2,0 

3.2,0 

2.4,0 

1.8,0 

.15 3.2,0 

2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5,-1 

.20 2.4,0 

1.8,0 

1. 3,0 

1.0,0 

7.5,-1 

5.6,·-1 

4.2,-1 

.25 1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 

.30 1. 3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 

.35 1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 

.40 7.5, -1 5.6,-1 

4.2,-1 

3.2, -1 2.4, -1 1. 8,-1 

1.3, -1 1.0, -1 7.5,-2 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-;, II r/a 1-.!. 31) 

8o=75°; fo=0.45-Continued 

- 0.990 0.60 1. 0, -1 0.494 

.966 7.5, -2 .338 

.916 5.6, -2 .203 

.840 4.2, -2 .105 . 733 3.2, -2 .048 .608 . 70 3.2, -1 .990 .461 2.4, -1 .964 .347 1.8, -1 .907 . 237 1.3, -1 . 798 .145 1. 0,-1 .678 .078 7.5, -2 .528 

.983 5.6,-2 .375 

4.2, -2 . 242 .950 3.2, -2 .145 .888 2.4, -2 .074 . 789 1.8, -2 .033 . 661 

.500 .80 1.8, -1 .969 

.372 1.3, -1 .916 

.248 1. 0,-1 .844 .148 7.5, -2 . 742 

.079 5.6, -2 .622 

.037 4.2, -2 . 502 

3.2, -2 .396 

.987 2.4, -2 . 298 

.959 1.8, -2 . 214 . 897 1.3, -2 .136 . 795 1. 0, -2 .086 .638 7.5, -3 . 046 

[Pl. 40] 

0.989 0.45 7.5,-1 0.990 

.984 5.6,-1 .966 4.2,-1 .915 

.985 3.2,-1 .838 . 979 2.4, -1 . 730 

.970 1.8, -1 .603 .958 1.3,-1 .454 

1.0, -1 .340 

.986 7.5,-2 .229 

.974 5.6,-2 .137 

.960 4.2,-2 .071 

.940 

.918 .50 5.6, -1 .983 

.888 4.2, -1 .949 

3.2,-1 .887 

.987 2.4,-1 . 787 

.972 1.8, -1 .657 

.948 1.3,-1 .494 

.922 1.0,-1 .364 

.889 7.5,-2 .240 

.847 5.6,-2 .140 . 794 4.2,-2 .072 

3.2, -2 .032 

.988 

. 967 .60 4.2, -1 .987 

.940 3.2,-1 .958 .900 2.4,-1 .896 

.852 l. 8,-1 . 793 . 795 1.3, -1 .634 . 731 1.0, -1 .488 

.649 7.5, -2 .331 

5.6,-2 .195 

.985 4.2,-2 .099 

.963 3.2,-2 .043 

.925 

. 871 . 70 3.2, -1 .989 

.806 2.4,-1 .963 . 735 1.8,-1 .906 . 650 1.3,-1 . 795 . 553 1. 0,-1 .674 

7.5, -2 .522 

.983 5.6,-2 .368 

.954 4.2,-2 .236 

.904 3.2,-2 .140 

.834 2.4,-2 .071 . 754 1. 8,-2 .031 

.659 

.556 .80 1.8, -1 .969 

.432 1.3, -1 . 914 

.331 1. 0,-1 .843 

7.5,-2 . 739 

.976 5.6,-2 .618 

.938 4.2, -2 .497 

.874 3.2, -2 .392 . 790 2.4,-2 .295 .685 1.8, -2 .213 

.570 1.3, -2 .136 

.437 1.0, -2 .086 . 332 7.5, -3 .046 

.226 

r/a 

0.05 2.4,0 

.10 2.4,0 

1.8,0 

.15 1.8,0 

1.3,0 

.20 1.3,0 

1.0,0 

7.5,-1 

. 25 1.3,0 

1. 0, 0 

7.5,-1 

5.6,-1 

4.2,-1 

.30 1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

.35 7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

.40 5.6,-1 

4.2,-1 

3. 2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0,-1 

.45 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

. 50 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3,-1 

0.05 4.2,0 

.10 4.2,0 

3.2,0 

2.4,0 

.15 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

.20 1.8, 0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 

.25 1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4. 2, -1 3.2,-1 

.30 1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

·-;, II r/a 

[Pl. 41] 

0.990 0.50 

.990 

.987 

.987 

.982 

.60 

.984 

.978 

.970 

.989 

.982 

.973 

.962 

. 951 

.988 

.979 

.967 

.953 . 70 

.939 

.924 

.986 

.974 

.959 

.943 

. 925 

.907 

.982 

.968 

. 951 

.930 

.909 

.885 

.865 .80 

.989 

.977 

. 961 

.939 

.916 

.889 

.866 

.842 

.985 

.971 

. 951 

.927 

.896 

8o=90°; !=0.10 flo 

[Pl. 42) 

0.989 0.35 

.989 

.985 

.980 

.989 

.983 

.975 

.965 .40 

.955 

.981 

.968 

.956 

.942 

.924 

.978 

.964 45 .946 

.926 

.903 

.879 

.989 

.977 

.958 

.934 

.907 .50 . 880 

.849 

.815 

1-.!. 30 

1.0,-1 0.872 

7.5,-2 .844 5.6,-2 .816 

4.2,-2 . 787 

3.2,-2 . 757 

2.4,-2 . 720 

3.2,-1 .988 2.4,-1 .974 

1.8,-1 .954 

1.3, -1 .924 

1.0, -1 .897 7.5,-2 .864 

5.6,-2 .830 

4.2,-2 • 794 

3.2,-2 . 760 

2.4,-2 . 721 

1.8,-2 .679 

1.3,-2 .627 

1.0,-2 .579 

2.4,-1 .989 

1.8,-1 .977 

1.3,-1 .956 

1.0,-1 .934 

7.5,-2 .904 5.6,-2 .870 

4. 2,-2 .830 3.2,-2 . 788 

2. 4,-2 . 741 

1.8,-2 .690 

1.3,-2 .631 

1.0,-2 .580 

7.5,-3 .522 

5.6,-3 .459 

4.2,-3 .392 

3.2,-3 .327 

1.3,-1 .980 1.0,-1 .967 

7.5,-2 .948 5.6,-2 .923 4. 2,-2 . 893 

3.2,-2 .857 

2.4, -2 .810 

1.8, -2 . 755 

1.3,-2 .683 

1.0, -2 .620 

7.5, -3 .546 

5.6, -3 .471 

4.2,-3 .397 

3.2,-3 .328 2.4, -3 .258 1.8,-3 .191 

1.0,0 0.987 

7.5,-1 .972 

5.6,-1 .948 4.2,-1 .919 

3.2,-1 .888 2.4,-1 .853 

1.8,-1 .816 

1.3, -1 . 772 

7.5, -1 .984 5.6,-1 .964 4. 2,-1 .936 3.2, -1 .902 2.4, -1 .863 

1.8, -1 .821 

1.3,-1 . 774 

1.0,-1 .734 7.5,-2 .690 

5.6,-1 .978 

4.2,-1 .954 

3.2,-1 .922 

2.4,-1 .880 

1.8,-1 .834 1.3,-1 . 781 

1.0, -1 . 738 

7.5,-2 .691 

5.6,-2 .642 

5.6,-1 .988 4. 2, -1 .970 

3.2,-1 .943 

2.4,-1 .903 
r/a 

0.50 1.8, -1 1.3, -1 1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

.60 3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1. 0,-2 

. 70 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

0.05 5.6, o- 4.2,0 

.10 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8, 0 

.15 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

.20 2. 4, 0 1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 

.25 1.8, 0 1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 

. 30 1. 3, 0 1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 

.35 1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 1.3, -1 

.40 7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2. 4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

. 45 7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

·-;, II r{a 

II llo=90°; ihJ =O.to--Continoed 

0.85.'i 0. 70 . 796 

. 748 

.696 

.643 

.500 

.536 

.475 

.976 

.948 

.908 

.851 .80 . 797 

. 735 

.669 

.604 

.543 

.477 

.410 

.332 

.269 

.979 

.955 

.913 

.869 

.813 

llo=90°;!!.. =0.15 flo 

[PI.43] 

0.987 0.45 .983 

.989 

. 984 

. 978 

.971 .50 . 962 

.984 

.974 

.963 

.948 

.933 

.985 

. 973 

.954 

.936 

.914 .60 .888 

.986 

.968 

.948 

.921 

.891 

.858 

.822 

. 983 

.966 

.938 

.903 

.864 . 70 .825 

. 779 

. 729 

. 982 

. 959 

.924 

.881 

.835 

. 784 

. 731 

.667 

.977 

.948 

.906 .80 .857 

. 799 

. 738 

.670 

. 614 

. 552 

.988 

.968 

. 933 

.886 

.824 

TABLES 

1-~ 80 

5.6,-2 0. 746 4.2,-2 .672 3.2,-2 .596 

2.4,-2 . 512 1.8, -2 .429 

1.3,-2 .339 

1.0,-2 .271 7.5,-3 .202 5.6,-3 .139 

4.2,-3 .088 3.2,-3 .051 

1.8, -1 .983 

1.3, -1 .961 

1.0, -1 .935 

7.5,-2 .897 

5.6,-2 .850 4.2,-2 . 792 

3.2,-2 . 725 2.4, -2 .642 1.8, -2 . 547 1. 3, -2 .431 1.0, -2 .337 7.5,-3 .241 5.e.-3 .158 4.2,-3 .095 

3.2,-3 .052 2.4,-3 .024 

1.8,-1 0. 757 1.3, -1 .680 1.0, -1 .619 

7.5,-2 .554 5.6, -2 .488 

5.6, -1 .983 

4.2, -1 . 957 

3.2, -1 .916 

2.4, -1 .858 1.8, -1 . 788 1.3, -1 . 702 1.0,-1 .633 7.5, -2 . 561 5.6,-2 .490 

4.2,-2 .422 3.2,-2 .356 

2.4,-2 . 287 

4.2, -1 .986 3.2, -1 .965 

2.4, -1 .924 

1.8, -1 .865 1.3,-1 . 781 1.0, -1 . 705 7.5, -2 . 616 5.6, -2 .526 4.2,-2 . 441 3.2, -2 .365 2.4,-2 .289 

1.8, -2 . 219 

1.3, -2 .148 1.0, -2 .099 

3.2,-1 .989 

2.4,-1 .969 1.8,-1 .934 

1.3, -1 .872 1.0, -1 .809 

7.5, -2 . 728 5.6, -2 .634 4.2, -2 .534 3.2, -2 .437 2.4, -2 .336 1.8, -2 .243 1.3, -2 .156 1.0, -2 .102 7.5, -3 .057 5.6,-3 .027 

1.8, -1 . 975 

1.3, -1 .943 1. o, -1 .904 7.5, -2 . 850 5.6, -2 . 782 4.2, -2 . 702 3.2, -2 .614 2.4, -2 .508 1.8, -2 . 395 

1.3, -2 .270 1.0, -2 .180 7.5, .. -3 .101 5.6,-3 .047 

r/a 

0.05 

.10 

.15 

. 20 

. 25 

.30 

.35 

. 40 

.45 

0.05 

.10 

.15 

.20 

Tt 

iii 

7.5,0 

5.6,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.3,0 

1. 0, 0 7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

1. 0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 

1.0, -1 

1. 0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

7.5,-1 

5.6, -1 

l. 0,1 

7.5,0 

5.6,0 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2. 4, 0 1.8,0 

4.2,0 

3. 2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0, 0 7.5, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

0.988 0.45 .984 

.986 

.979 

.972 

.962 

.950 

.989 

.979 .50 .967 

.952 

.933 

.914 

.888 

.981 

.965 

.940 

.917 

.889 

.855 

.815 .60 

.982 

.959 

.932 

.898 

.859 

.816 

.770 

.714 

.978 

.956 

.920 

.874 

.824 . 70 . 773 

.715 

.651 

.976 

.947 

.902 

.846 

. 787 

. 721 

.653 

. 573 

.507 .80 .989 

. 970 

.932 

.878 

.814 

. 740 

.663 

.576 

• 508 

. 433 

. 985 

. 959 

llo=90°; !!..=0.25 

flo 

[Pl. 45] 

0.989 0.25 .985 

.980 

.989 

.983 

.975 

.966 

.955 .30 .940 

.986 

.975 

.960 

.942 

. 919 

. 896 

.865 .35 

.977 

.957 

.928 

.900 

.866 

.826 

. 778 

Tt 

;.28 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 7.5,-2 

5.6,-2 

5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2, -2 3.2,-2 

2.4, -2 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6,-2 

4.2,-2 

3.2, -2 2.4,-2 

1.8, -2 1.3, -2 1.0, -2 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2, -2 3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

2.4,-1 

1.8,-1 

1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4. 2, -2 3.2,-2 

2.4, -2 1.8, -2 1.3, -2 1.0,-2 

7.5,-3 

5.6,-3 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1. 3, 0 1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

'2. 4,-1 

1.8, -1 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4. 2,-1 

3.2,-1 

2.4, -1 1.8,-1 

1.3,-1 

1.0,-1 

17 

1-~ 80 

0.913 

.852 

. 773 

.687 

.589 

.513 

.435 

.359 

.978 

.944 

.891 

.816 

• 726 

.617 

.532 

.444 

.362 

.288 

.222 

.158 

.982 

.954 

.902 

.826 

. 718 

.621 

.512 

.406 

.311 

.232 

.161 

.104 

.055 

.029 

.986 

.960 

.914 

.835 

. 754 

.652 

.539 

.423 

.316 

.214 

.131 

.065 

.032 

.988 

.968 

.926 

.876 

.807 

. 723 

.628 

. 527 

.413 

.301 

.187 

.114 

.058 

.024 

0.978 

. 950 

.919 

.877 

.830 

. 779 

. 724 

.657 

.974 

.947 

.904 

.849 

. 789 

. 728 

.658 

.583 

.989 

.971 

.936 

.882 

.815 

. 744 

.665 

. 585 

.492 

.416 
18 

rfa 

0.40 1. 0, 0 7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

. 45 7.5,-1 

5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2, -2 

. 50 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6,-2 

4.2,-2 

3.2, -2 2. 4, -2 

.60 4.2, -1 3.2, -1 

0.05 1. 0,1 

7.5,0 

5.6, 0 

.10 7.5,0 

5.6,0 

4.2, 0 3.2, 0 2.4,0 

1.8, 0 

.15 4.2,0 

3.2, 0 2.4, 0 1.8, 0 1.3, 0 1. 0, 0 7. 5,-1 

. 20 3.2, 0 2.4,0 

1. 8, 0 1.3, 0 1. 0, 0 7.5, -1 5.6, -1 4.2, -1 

.25 1. 8, 0 1. 3, 0 1. 0, 0 7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 

.30 1. 3, 0 1. 0, 0 7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 

.35 1.3, 0 1. 0, 0 7. 5,-1 

5.6, -1 4.2, -1 3.2, -1 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-~ II r/a 1-.!.. so 

8o=90°; io =0.2~Continued 

0.987 0.60 2. 4,-1 0.882 .963 1.8, -1 . 791 

.919 1.3, -1 .662 .853 1.0, -1 .549 .777 7.5,-2 .425 .688 5.6,-2 .310 . 596 4.2, -2 .214 .495 3.2,-2 .141 . 417 2.4,-2 .084 .335 1.8, -2 .044 

.982 . 70 3.2, -1 .983 .950 

.895 2.4, -1 .952 

.822 1.8, -1 .897 

. 727 1.3, -1 .802 

.625 1.0, -1 . 706 

.510 7.5, -2 .588 

.423 5.6, -2 . 461 

.337 4.2,-2 .338 

. 258 3.2,-2 .232 

.188 2.4,-2 .139 

1.8, -2 .072 .973 1. 3,-2 . 027 .932 

.869 .80 2.4, -1 .986 . 779 1.8, -1 .962 .671 1.3, -1 .911 .543 1. o, -1 .851 .444 7.5,-2 . 770 .347 5.6, -2 .674 .261 4.2,-2 .569 

.189 3.2,-2 .464 .131 2.4,-2 .353 . 081 1.8, -2 . 250 1.3, -2 .152 .979 1. 0,-2 .093 .945 7.5,-3 . 048 

Bo=90°; !=0.30 

Bo 

[Pl.46] 

0.987 0.35 2.4, -1 0.618 .983 1.8, -1 . 528 . 977 1.3, -1 .424 1.0, -1 .342 .988 

.980 .40 1. 0, 0 .985 

.971 7.5, -1 .958 

.961 5.6,-1 .907 

.948 4.2, -1 .832 .932 3.2, -1 . 745 2.4, -1 .644 .984 1.8, -1 .541 .971 1.3, -1 .428 .954 1. 0,-1 .343 .934 7.5, -2 .258 .908 

.881 .45 7.5, -1 .979 .846 5.6, -1 .943 

4.2, -1 .880 .989 3.2, -1 . 796 .974 2.4,-1 .689 . 951 1.8,-1 . 573 .918 1.3, -1 .445 .886 1. 0,-1 .350 .847 7.5, -2 .260 .801 5.6, -2 .182 . 746 4.2, -2 .119 

. 975 .50 5.6, -1 .969 .943 4.2, -1 .923 . 907 3.2, -1 .850 .860 2.4, -1 . 747 .806 1.8, -1 .625 . 747 1.3, -1 .482 .685 1.0, -1 .373 .609 7.5, -2 .270 5.6,-2 .185 . 970 4.2, -2 .120 . 939 3.2, -2 .073 .890 2.4, -2 .038 .827 

. 759 .60 4.2, -1 .976 .689 3.2, -1 . 937 .610 2.4, -1 .865 . 525 1.8, -1 . 761 1.3, -1 .616 .988 1.0, -1 .489 .967 7.5, -2 .356 . 927 5. 6, -2 . 238 .865 4.2, -2 .146 . 788 3.2, -2 .084 . 707 2.4, -2 . 041 

r/a 

0. 70 

0.05 

.10 

.15 

. 20 

.25 

.30 

.35 

. 40 

0.05 

Tt 

;:28 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0,-1 

7.5, -2 5.6,-2 

4.2, -2 3.2, -2 2.4, -2 1.8, -2 

1. 3,1 

1. 0, 1 7.5, 0 5.6,0 

4.2, 0 

7.5, 0 5.6, 0 4.2, 0 3.2,0 

2.4,0 

1.8, 0 

4.2, 0 3.2, 0 2.4, 0 1.8, 0 1.3, 0 1.0,0 

7.5, -1 

3.2,0 

2.4,0 

1.8, 0 1.3, 0 1. 0, 0 7.5, -1 5.6,-1 

4.2, -1 

2.4, 0 1.8, 0 1. 3, 0 1. 0, 0 7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2.4, -1 

1.8, 0 1.3, 0 1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 

1.3, 0 1.0, 0 7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

1. 0, 0 7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 

1.3,1 

1.0, 1 7. 5,0 

5.6,0 

4.2,0 

·-~ II r/a 

8 8o=90°; e;,=0.3Q--Continued 

0.981 0.80 .946 

.882 

. 774 

.666 

.535 

.401 

.278 

.179 

.098 

.045 

8o=90°;! =0.35 8o 

[Pl. 47] 

0.989 0.40 .986 

. 981 

.975 

.967 .45 . 987 

. 978 

.968 

.957 

.943 

.925 

.983 

.969 

.950 

. 927 

.898 . 50 .869 

.830 

.988 

.971 

.946 

.909 

.875 

.832 

. 781 

. 721 . 60 .990 

. 972 

.937 

.898 

.846 

. 787 

. 722 

.653 

.571 

.990 

.967 . 70 .933 

.879 

.810 

. 734 

.658 

.572 

.480 

.986 

.964 

. 919 

.851 .80 . 767 

.678 

. 581 

.482 

.372 

.286 

.984 

.954 

.898 

.815 

I .719 

.608 

8 8o=90°; Bo =0.40 

0.989 

.985 

.980 

.973 

.965 

[Pl.48] 

0.10 

2.4, -1 1. 8,-1 

1.3, -1 1. 0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8, -2 1.3, -2 1. 0,-2 

7.5, -3 

1.8, -1 1.3, -1 1.0,-1 

7.5, -2 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0,-1 

7.5, -2 5.6,-2 

4.2, -2 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8,-1 

1.3,-1 

1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 

4. 2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2, -2 2.4, -2 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2,-2 

3.2, -2 2.4, -2 1.8,-2 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8, -2 1.3, -2 1. 0, -2 7.5, -3 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

0.984 

.956 

.898 

.830 

. 739 

.635 

.526 

.423 

.319 

.226 

.140 

.088 

.046 

0.496 

.376 

.287 

.200 

.977 

.938 

.868 

. 776 

.658 

. 531 

.393 

.294 

.202 

.128 

.074 

.966 

.915 

.835 

. 721 

.588 

.433 

.319 

.213 

.132 

.075 

.040 

. 973 

.930 

.851 

. 737 

.578 

.443 

.304 

.186 

.102 

.050 

.020 

.979 

.940 

.870 

. 752 

.634 

.495 

.358 

.238 

.147 

. 078 

.035 

.983 

.952 

.888 

.814 

.715 

.605 

.496 

.397 

.300 

.216 

.137 

. 087 

.046 

0.986 

.977 

.966 

.954 

.939 

.920 
r/a 

0.15 

.20 

.25 

.30 

.35 

.40 

0.05 

.10 

.15 

. 20 

Tt 

128 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0, 0 

7.5, -1 

3.2,0 

2.4,0 

1.8, 0 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6,-1 

4.2, -1 

2.4,0 

1. 8, 0 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,0 

1. 3, 0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 

1. 0, 0 

7.5,-1 

5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 

1. 3,1 

1. 0,1 

7.5, 0 

5.6,0 

4.2, 0 

7.5, 0 

5.6,0 

4.2, 0 

3.2, 0 

2.4,0 

1. 8, 0 

1.3, 0 

4. 2, 0 

3.2,0 

2. 4,0 

1. 8, 0 

1.3,0 

1.0,0 

7.5, -1 

3.2,0 

2.4,0 

1. 8, 0 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2, -1 

·-~ II r/a 

llo=90°; io=0.4o-Continued 

0.981 0.45 

.966 

.946 

.923 

.891 

.861 

.819 

.987 

.969 

.943 

.903 .50 .866 

. 821 

. 766 

. 702 

.989 

.971 

.933 

.891 

.835 

. 772 

. 704 .60 .630 

.543 

.989 

.965 

.928 

.870 

. 797 

.717 

.635 . 70 . 544 

.447 

.985 

.961 

.914 

.841 

. 751 

.657 

.554 

.450 

.334 .80 .246 

.983 

.951 

.891 

.803 

. 701 

.583 

. 464 

.339 

. 247 

.161 

[Pl. 49] 

0.988 0.25 .984 

.979 

.972 

.963 

. 985 

. 976 

.965 

. 953 

.937 .30 . 917 

.886 

.981 

.965 

.944 

.920 

.887 

.855 

.812 .35 

.986 

. 968 

. 940 

.899 

.861 

.814 

. 757 

.691 

Tt 

128 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2. 4,-1 

1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6, -2 4.2, -2 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2. 4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2, -2 

4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4.2,-2 

3.2,-2 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 1.8,-2 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3, -2 1. 0,-2 

7.!i,-3 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 

1.8, 0 

1.3, 0 

1.0, 0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1. 8,-1 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 

TABLES 

1-!. so 

0.976 

.933 

.859 

. 761 

.635 

.501 

.357 

.255 

.163 

.094 

.048 

.990 

.964 

.909 

.824 

. 703 

.561 

.399 

.280 

.175 

.097 

. 048 

.971 

.926 

.841 

. 720 

.552 

. 410 

.268 

.153 

.075 

.032 

.977 

.936 

. 861 

. 735 

.611 

.467 

.328 

.213 

.130 

.068 

.031 

. 981 

.949 

.880 

.802 

.698 

. 585 

.477 

.382 

• 292 

. 212 

.136 

.086 

.046 

0.989 

.969 

.931 

.887 

.829 

. 764 

.692 

.617 

.562 

.989 

. 963 

.925 

.865 

. 789 

. 706 

.622 

.527 

.427 

.985 

.960 

. 910 

.835 

. 742 

.644 

.537 

.430 

.312 

.223 

r/a 

0.40 

.45 

.50 

0.05 

.10 

.15 

.20 

. 25 

.30 

.35 

Tt 

128 

1.0, 0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 

1.3, 1 1.0, 1 7.5,0 

5.6,0 

4.2,0 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0, 0 

7.5, -1 

3.2,0 

2.4,0 

1.8, 0 

1.3, 0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 

2.4, 0 

1.8, 0 

1.3,0 

1. 0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 

1. 8, 0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8,-1 

1.3,0 

1.0,0 

r/a 

8 llo=90°; e;,=O.~Contlnued 

0.982 0.60 

.949 

.886 

. 795 

.689 

.567 

.445 

.316 

.224 

.139 

.975 . 70 

.931 

.854 

. 752 

.621 

.483 

.335 

.232 

.141 

.075 

.034 .80 

.989 

.962 

.905 

.817 

.692 

.545 

.378 

.258 

.152 

.078 

.034 

[Pl. 50] 

0.988 0.35 .984 

.979 

.972 

.963 

.985 

.975 

.964 .40 .952 

.936 

.916 

.885 

.980 

.965 

.943 

. 919 

.886 

.853 .45 

.810 

.986 

.968 

.940 

.898 

.859 

. 811 

. 754 

.687 

.988 .50 

.969 

.930 

.885 

.827 

. 761 

.689 

. 612 

.520 

.989 

.963 

.924 

.864 .60 . 787 

. 702 

. 617 

.522 

.420 

.985 

.960 

Tt 

fi8 

4.2, -1 3.2,-1 

2.4, -1 1.8,-1 

1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2, -2 3.2, -2 

3.2,-1 

2.4, -1 1. 8, -1 1.3,-1 

1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8, -2 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2,-2 

3.2, -2 2.4, -2 1.8, -2 1.3, -2 1.0, -2 7.5, -3 

7.5, -1 5. 6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 

1.0, 0 

7.5,-1 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 

4.2, -1 3.2, -1 2.4, -1 1.8,-1 

1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2, -2 3.2, -2 

19 

1-!. 80 

0.970 

.923 

.835 

. 709 

.535 

.390 

.247 

.134 

.061 

.024 

.976 

.934 

.856 

. 725 

.597 

.450 

.312 

.200 

.121 

.064 

.029 

.981 

.947 

.876 

. 794 

.688 

.573 

.466 

.375 

.288 

.211 

.136 

.086 

.046 

0.909 

.833 

. 738 

.639 

.532 

.423 

.304 

.215 

.982 

.948 

.885 

. 793 

.686 

.562 

.439 

.309 

.216 

.131 

.975 

.930 

.852 

. 748 

.617 

.477 

.327 

.224 

.134 

.068 

.029 

.989 

.962 

.904 

.815 

.688 

.540 

.371 

.250 

.145 

.072 

.030 

.970 

.922 

.833 

. 705 

.530 

.384 

.240 

.128 

.057 

.021 
20 

r/a 

0. 70 

0.05 

.10 

.15 

.20 

.25 

.30 

.35 

.40 

.45 

0.05 

.10 

.15 

Tt 

TiS 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6, -2 4.2,-2 

3.2, -2 2.4, -2 1. 8,-2 

4.2,0 

4.2,0 

3.2,0 

2.4,0 

3.2, 0 

2.4,0 

1.8,0 

1.3, 0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4, -1 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 

7.5,-1 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0, -1 

5.6,-1 

4. 2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6,-2 

1. 0,1 

7.5,0 

5.6,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

I. 8, 0 

4.2,0 

3.2,0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

,_;, II r/a 1-!. Bo 

0.976 0.80 2.4,-1 0.980 

.933 1.8, -1 .946 .854 1.3, -1 .874 . 722 1.0, -1 . 792 

.592 7.5, -2 .684 

.444 5.6,-2 .570 

.307 4.2,-2 .463 

.196 3.2,-2 .372 

.119 2.4, -2 .287 .063 1.8, -2 . 211 .029 1.3, -2 .136 1. 0,-2 .086 

7.5. -3 .046 

[PI. 51] 

0.989 0.50 5.6, -1 0.990 

4.2, -1 .977 .900 3.2,-1 .960 

.987 2.4, -1 .936 

.983 1.8,-1 .909 

1.3,-1 .876 

.990 1. 0, -1 .848 

.985 7.5,-2 .818 

.979 5.6, -2 . 786 

.972 4.2,-2 . 753 

3.2,-2 . 718 

.984 2.4, -2 .676 .975 .60 3.2, -1 .982 .967 

.958 2.4, -1 .964 

.947 1.8, -1 .941 

1.3,-1 .908 

.982 1.0, -1 .878 

.972 7.5,-2 .841 

.961 5.6,-2 .802 

.948 4.2, -2 . 761 

.935 3.2,-2 . 722 

2.4, -2 . 677 

.900 1.8, -2 .630 

.981 1.3, -2 .570 

.968 1.0, -2 .518 

.953 . 70 2.4,-1 .984 

.937 1. 8, -1 .969 .922 1.3, -1 .945 

.904 1. 0, -1 .921 

7.5,-2 .888 .989 5.6,-2 .848 .978 4.2,-2 .802 .962 3.2,-2 . 755 .944 2.4,-2 • 700 .926 1.8,-2 .642 .906 1.3,-2 .575 .886 1. 0,-2 . 519 

.861 7.5, -3 .455 

5.6,-3 .387 

.986 4.2, -3 .318 

.973 3.2, -3 .253 

.955 .80 1.8, -1 .988 .935 

.912 1.3, -1 .975 

.889 1.0, -1 .959 

.862 7.5, -2 .938 

.840 5.6,-2 .910 

4.2,-2 .875 

.982 3.2,-2 .834 

.967 2.4,-2 . 780 

.947 1.8,-2 .717 

.923 1.3, -2 .636 

.897 1. 0,-2 . 564 

.867 7.5,-3 .483 

.842 5.6,-3 .401 

.815 4.2, -3 .323 

. 785 3.2, -3 .254 

2.4,-3 .187 

1.8, -3 .127 

[PI. 52] 

0.990 0.15 2.4,0 0.970 

.987 1.8,0 .959 

.984 1.3,0 .945 

.985 1.0,0 .932 

.980 .20 2.4,0 .982 .974 

.967 1.8,0 .968 

.958 1.3,0 .950 

1.0,0 .935 .988 7.5, -1 .916 .980 5.6, -1 .895 

r/a 

0.25 

.30 

.35 

.40 

.45 

.50 

0.05 

.10 

.15 

.20 

.25 

Tt 

TiS 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

1.0, 0 

7.5,-1 

5.6, -1 4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

7.5,-1 

5.6,-1 

4.2,-1_ 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

1.0, -1 7.5,-2 

5.6, -2 

5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

1. 3, 1 1. 0,1 

7.5,0 

5.6,0 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

4.2,0 

3. 2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 

'-f. II rja 

8o=105°; io-o.lo-Continued 

0.982 0.50 

.964 

.945 

.922 

.897 

.871 

.843 

.60 

.979 

.962 

.937 

.907 

.876 

.846 

.811 

. 774 

.978 

.956 

.925 

.890 

.854 

. 815 . 70 . 776 

. 728 

.989 

.973 

.946 

.911 

.871 

.827 

. 782 

. 730 

.688 

.640 

.986 

.965 

.934 .80 

.895 

.848 

. 797 

. 738 

.692 

.641 

.587 

.980 

.955 

.921 

.874 

.821 

. 756 

8 8o=105°; 9;, =0.15 

[PI. 53] 

0.988 0.30 .985 

.981 

.976 

.986 

.978 

. 970 

.962 

.951 

. 938 .35 

.982 

.971 

.956 

.940 

.920 

.901 

.876 

.987 .40 

.973 

.954 

.927 

.904 

.877 

. 846 

.810 

.989 

.974 

.947 .45 

.920 

.886 

.849 

.811 

. 771 

Tt 

TiS 

1.0, -1 7.5,-2 

5.6,-2 

4.2, -2 3.2,-2 

2.4,-2 

4.2, -1 3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3, -2 1.0, -2 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3, -2 1.0, -2 7.5,-3 

5.6, -3 

4.2,-3 

1.8, -1 1.3, -1 1.0,-1 

7.5, -2 5.6, -2 4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3, -2 1.0, -2 7.5, -3 

5.6, -3 

4.2,-3 

3.2, -3 

1.8,0 

1.3,0 

1.0,0 

7. 5, -'1 5.6,-1 

4.2, -1 3.2, -1 2.4,-1 

1.8, -1 

1. 3,0 

1. 0, 0 

7.5,-1 

5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 

1. 0, 0 

7.5, -1 5.6, -1 4.2, -1 3.2, .-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 _;.ot·-2 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 

1-!. so 

o. 704 

.647 

.589 

.530 

.471 

.406 

.984 

.964 

.930 

.883 

.819 

. 761 

.691 

.618 

.546 

.478 

.408 

.337 

.258 

.198 

.987 

.969 

.940 

.892 

.844 

. 781 

. 706 

.623 

.539 

.447 

.359 

.266 

.200 

.137 

.085 

.047 

.976 

.950 

.920 

.879 

.825 

. 760 

.685 

.593 

.490 

.367 

.272 

.179 

.104 

.054 

.025 

0.981} 

.970 

.944 

. 907 

.864 

.818 

. 774 

. 724 

.671 

.986 

.968 

. 935 

.890 

.838 

. 786 

. 730 

.673 

.606 

.984 

.961 

.921 

.869 

. 811 

. 747 

.682 

.609 

.551 

.486 

.979 

949 

.903 

.846 

. 777 

. 703 
TABLE.S 21 

r/a 

·-~ II r/a 1-.! so r/a I 

Tt 

I 1-.! II r/a I 

Tt I 1-.! Ti8 so ;28 80 

8 llo= 105°; io =0.15-Continued 8 llo= 105°; 90 =0.»-Contlnued 

0.45 1.3, -1 0.621 0.60 1.3, -2 0.092 

1.0, -1 .556 1. 0, -2 .055 

7.5,-2 .488 . 70 3.2, -1 .982 5.6, -2 .418 2.4, -1 . 955 

.50 7.5, -1 .900 1. 8,-1 .911 

5.6, -1 .970 1. 3,-1 .843 

4.2, -1 .934 1.0, -1 . 773 

3.2, -1 .884 7.5, -2 . 684 

2.4, -1 .816 5.6, -2 .583 

1.8, -1 . 738 4.2,-2 .475 

1.3, -1 .646 3.2,-2 .371 

1.0, -1 .573 2.4,-2 .268 

7.5,-2 .496 1. 8,-2 .179 

5.6,-2 .421 1. 3, -2 .101 

4.2,-2 . 350 1. 0, -2 .058 

3.2, -2 .283 7.5, -3 . 027 

2.4,-2 . 215 .80 2.4, -1 .985 

1.8,-1 .965 

0. 70 3.2,-1 0.976 0.80 2.4,-1 0.981 

2.4,-1 .942 1.8, -1 .954 

1.8,-1 .886 1.3,-1 .905 

1.3, -1 . 797 1.0, -1 .850 

1. 0,-1 .710 7.5,-2 • 776 

7.5,-2 .602 5.6,-2 .687 

5.6,-2 .482 4.2,-2 .586 

4.2,-2 .363 3.2, -2 .483 

3.2,-2 .256 2.4, -2 .370 

2.4, -2 .160 1.8, -2 .263 

1.8, -2 .087 1.3,-2 .160 

1.3, -2 .036 1.0,-2 .097 

7.5,-3 .050 

8o=105°; !=0.25 Bo 

. 60 4.2, -1 .976 1. 3,-1 .926 

3.2, -1 .946 1. 0,-1 .883 2.4, -1 .897 7.5,-2 .824 

1.8, -1 .829 5.6, -2 . 750 

1.3, -1 . 737 4.2,-2 .663 1. 0,-1 . 654 3.2,-2 .567 

7.5,-2 . 558 2.4,-2 . 456 

5.6, -2 . 461 1.8,-2 .342 

4.2,-2 .371 1. 3, -2 . 221 3.2,-2 . 293 1. 0, -2 .139 

2.4,-2 .218 7.5, -3 .072 1. 8, -2 .153 5.6,-3 .031 

[Pl. 54] 

0.05 1. 8,1 0.989 0.35 4.2, -1 0. 791 

1.3, 1 .985 3.2, -1 . 724 

1. 0,1 .981 2.4,-1 .652 

7.5,0 .976 1.8, -1 .581 

5.6,0 .969 1.3, -1 .499 

4.2,0 .960 1.0, -1 .432 

.10 1.0, 1 .990 .40 1.0,0 .979 

7.5,0 .982 7.5, -1 .949 

5.6,0 .972 5.6, -1 .898 

4.2,0 .962 4.2, -1 .831 

3.2,0 .950 3.2,-1 . 756 

2.4,0 .937 2.4,-1 .674 

1. 8, 0 .920 1.8, -1 .592 

1.3, -1 .503 

.15 5.6,0 .989 1.0,-1 .433 

4.2,0 .977 7.5,-2 .359 

3.2,0 .962 

2.4,0 .943 .45 7.5, -1 .973 

1.8, 0 .922 5.6, -1 .934 

1. 3, 0 .896 4.2,-1 .875 

1. 0, 0 .872 3.2, -1 .801 

7.5, -1 .840 2.4,-1 .712 

1.8, -1 .619 . 20 3.2,0 .983 1.3, -1 . 517 

2.4,0 .965 1.0, -1 .440 

1. 8, 0 .940 7.5, -2 .361 

1.3,0 .906 5:6,-2 .286 

1.0,0 .876 4.2, -2 . 217 

7.5,-1 . 841 

5.6, -1 . 801 . 50 7.5, -1 .987 

4.2, -1 . 754 5.6,-1 .962 

4.2,-1 .915 

.25 2.4,0 .986 3.2, -1 .850 

1. 8, 0 .966 2.4, -1 . 762 

1. 3, 0 .932 1.8, -1 .664 1. 0, 0 .896 1.3, -1 . 549 

7.5, -1 .852 1. 0,-1 .460 

5.6, -1 .805 7.5, -2 .370 

4.2,-1 . 756 5.6,-2 . 289 

3.2,-1 . 705 4.2, -2 . 217 

2.4,-1 .645 3.2,-2 .157 

.30 

2.4,-2 .102 

1.8,0 .986 

1.3,0 .961 .60 4.2, -1 .969 

1.0,0 .928 3.2, -1 .931 

7.5, -1 .880 2.4, -1 .866 

5.6, -1 .824 1.8, -1 . 780 

4.2, -1 . 765 1.3, -1 .663 

3.2,-1 . 708 1.0, -1 . 560 

2.4, -1 .645 7.5,-2 .446 

1.8, -1 . 579 5.6,-2 .337 

.35 1.3,0 

4.2,-2 .242 

.982 3.2,-2 .167 

1.0,0 .958 2.4, -2 .105 

7.5, -1 .916 1.8,-2 .059 

5.6, -1 .858 1.3, -2 . 026 

[Pl. 55] 

0.05 1. 8,1 0.987 0.40 1.8,-1 0.514 

1. 3,1 .982 1.3, -1 .413 

1. 0,1 .977 1.0, -1 .337 

7.5,0 .971 7.5,-2 .259 

5.6,0 .963 

4. 2,0 .952 .45 1.0, 0 .900 7.5,-1 .967 

.10 1. 0,1 .988 5.6,-1 .921 

7.5,0 .978 4. 2, -1 .849 

5.6,0 .966 3.2,-1 . 761 

4.2,0 .954 2.4,-1 .655 

3.2,0 .940 1.8,-1 .546 

2.4,0 .924 1.3,-1 .429 

1.8,0 .904 1.0, -1 .344 7.5,-2 .261 

.15 5.6,0 .986 5.6,-2 .189 

4.2,0 .972 4.2,-2 .127 

3. 2,0 .954 

2.4,0 .931 .50 7.5,-1 .984 

1.8, 0 .907 5.6,-1 .954 

1.3,0 .875 4.2,-1 .898 

1.0,0 .846 3.2,-1 .819 

7.5, -1 .807 2.4,-1 .715 

1.8,-1 .599 1.3,-1 .466 

.20 3.2,0 .980 1.0,-1 .367 

2.4,0 .958 7.5, -2 .272 

1.8,0 .928 5.6,-2 .192 

1.3,0 .887 4. 2,-2 .128 

1.0, 0 .851 3.2,-2 .081 

7.5, -1 .809 2.4,-2 .044 

5.6,-1 . 761 

4.2,-1 . 706 5.6,-1 .988 

.60 4.2,-1 .963 

. 25 2.4,0 .983 3.2,-1 .917 

1.8,0 .959 2.4, -1 .839 

1.3,0 .918 1.8, -1 . 736 

1. 0,0 .875 1.3, -1 .599 

7.5, -1 .822 1.0, -1 .481 

5.6, -1 . 766 7.5,-2 .357 

4.2, -1 . 707 5.6,-2 .244 

3.2, -1 .646 4. 2, ~-2 .154 

2.4,-1 .576 3.2,-2 .091 

2.4, -2 .047 

.30 1.8,0 .983 1.3,0 .953 3.2,-1 .971 

1.0,0 .913 . 70 2.4,-1 .930 

7.5,-1 .856 1.8, -1 .862 

5.6, -1 . 788 1. 3, ~-1 . 757 

4.2, -1 . 718 1.0,-1 .656 

3.2, -1 .651 7.5, -2 . 534 

2.4,-1 .577 5.6,-2 .406 

1.8, -1 .499 4.2,-2 .285 

3.2,-2 .186 

.35 1.3,0 .978 2.4, -2 .103 

1.0, 0 .950 1.8, -2 .048 

7.5, -1 .899 

5.6,-1 .829 2.4,-1 .977 

4.2,-1 . 749 .80 1.8, -1 .945 

3.2,-1 .669 1.3,-1 .886 

2.4, -1 .585 1.0,-1 .821 

1.8, -1 .502 7.5,-2 . 736 

1.3, -1 .409 5.6,-2 .637 

1.0, -1 .336 4.2,-2 .531 

3.2,-2 .428 

.40 1.0,0 . 975 2.4, -2 .323 

7.5,-1 .939 1.8,-2 .229 

5.6, -1 .877 1.3, -2 .141 

4.2, -1 . 796 1.0, -2 .088 

3.2, -1 . 708 7.5,-3 .046 

2.4,-1 .610 

791-598 0-66-4 
22 

r/a 

0.05 2.4, 1 1.8, 1 1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

.10 1.0, 1 7. 5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

.15 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

.20 3. 2,0 

2.4,0 

1. 8, 0 

1.3,0 

1. 0, 0 

7.5, -1 5.6, -1 4.2, -1 

. 25 2.4,0 

1.8,0 

1.3,0 

1.0.0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 

.30 1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 

.35 1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 

.40 1.0,0 

7.5, -1 5.6, -1 4.2, -1 

0. 05 2.4, 1 1.8, 1 l. 3,1 

1.0, 1 7. 5,0 

5.6,0 

4.2,0 

.10 1. 0,1 

7. 5,0 

5.6,0 

4.2,0 

3. 2,0 

2.4,0 

1.8, 0 

1. 3, 0 

.15 5.6,0 

4. 2, 0 

3.2,0 

2.4,0 

1.8,0 

1. 3, 0 

HYDRAULIC. DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-~ II r/a 

8 8o=105°; o;;=0.30 

[Pl. 56] 

0.989 0.40 

.985 

.979 

.974 

.966 

.957 

. 945 .45 

.986 

. 975 

.962 

.947 

.932 

. 913 

.890 

.857 

.985 

.968 

.948 .50 

.922 

.893 

. 857 

.824 

. 780 

.977 

.952 

.917 

.870 

.830 

. 781 

. 727 .60 

.664 

.980 

.954 

.906 

.857 

. 797 

. 733 

.666 

.597 

.518 . 70 

.981 

.946 

.901 

.835 

. 758 

.679 

.602 

. 519 

.434 

.975 

.942 

.885 .80 .805 

.713 

.623 

.528 

.436 

.337 

.261 

.972 

.930 

.860 

. 767 

8 8o=l05°; o;;=0.35 

[Pl. 57] 

0.988 0.15 

.983 

. 977 

.971 .20 

.963 

.953 

.940 

.984 

.972 

.958 

.942 

.925 

.904 . 25 .879 

.842 

. 983 

.965 

.942 

.914 

.882 

.843 

1-.!. so 

3.2, -1 0.667 

2.4, -1 .557 

1.8, -1 .451 

1.3, -1 .341 

1.0, -1 .262 

7.5,-2 .186 

1.0,0 .988 

7.5,-1 .962 

5.6, -1 .909 4.2, -1 .828 

3.2, -1 . 727 

2.4, -1 .608 

1.8,-1 .486 

1.3, -1 .358 

1.0, -1 . 269 

7.5, -2 .188 

5.6, -2 .122 

4.2, -2 .072 

7.5, -1 .982 

5.6, -1 .947 

4.2, -1 . 883 3.2, -1 . 794 

2.4, -1 .675 

1.8,-1 .544 1.3,-1 .399 

1.0,-1 .294 7.5, -2 .199 5.6, -2 .125 

4.2, -2 .073 

3.2, -2 .039 

5. 6, -1 .987 

4.2,-1 .958 

3.2, -1 .905 

2.4, -1 . 816 

1. 8,-1 .699 

1.3, -1 .546 

1. 0,-1 .419 

7.5,-2 .289 

5.6, -2 .180 

4.2, -2 .100 

3.2,-2 .050 

4. 2,-1 .989 

3.2, -1 .967 

2.4, -1 .920 

1. 8, -1 .843 

1.3, -1 . 724 

1.0, -1 . 612 

7.5,-2 . 481 

5.6, -2 . 351 

4.2, -2 .236 

3.2,-2 .146 

2.4,-2 .077 

1.8, -2 .035 

2.4, -1 .974 

1.8, -1 .937 

1.3, -1 .870 

1.0, -1 . 797 

7.5, -2 . 703 

5.6,-2 .599 4. 2,-2 .494 

3.2,-2 .396 

2.4,-2 .300 

1.8,-2 . 216 

1.3, -2 .137 

1.0, -2 .087 

7.5,-3 .046 

1.0,0 0.806 

7.5, -1 . 758 

4.2,0 .990 

3.2,0 .974 

2.4,0 .947 

1.8,0 .909 

1.3,0 .857 

1. 0, 0 .812 

7.5, -1 . 760 

5.6, -1 .699 

4.2, -1 . 631 

2.4,0 .978 

1. 8, 0 .949 

1.3, 0 .897 

1. 0,0 .842 

7.5, -1 . 776 5.6, -1 . 706 

4.2,-1 .633 3.2, -1 .558 

2.4, -1 .473 

r/a 

0.30 

.35 

.40 

.45 

.50 

0.05 

.10 

.15 

. 20 

. 25 

Tt 

;:28 

1.8,0 

1. 3, 0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 

1.3,0 

1. 0, 0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0, -1 7.5,-2 

5.6, -2 4.2, -2 

7.5, -1 5.6, -1 

2.4, 1 1.8,1 

1.3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

1.0, 1 7.5,0 

5.6. 0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

4. 2, 0 

3.2,0 

2.4,0 

1.8,0 

1. 3, 0 

1.0,0 

7.5, -1 5. 6, -1 4.2, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2,-1 

2.4, -1 

·-io II r/a 

8o=105°; fo=o.35-Continued 

0.979 0.50 

.941 

.891 

.818 

. 734 

.647 

. 564 

.474 

.383 

.973 .60 

.937 

.873 

. 785 

.685 

.586 

.484 

.386 

. 282 

. 206 

.990 

.969 . 70 

.923 

.846 

. 744 

.634 

.514 

.401 

.286 

.207 

.134 

.987 

.958 

.900 .80 

.810 

. 700 

. 570 

.439 

.305 

. 215 

.136 

.078 

. 040 

.980 

.942 

8 8o=l05°; 80=0.40 

[Pl. 58] 

0.987 0.30 

.982 

.975 

.969 

.961 

.950 

.936 

.983 

.970 

.955 

.938 .35 

.920 

.898 

.871 

.832 

.982 

.963 

.938 

.908 

.874 .40 .832 

• 793 

. 742 

.989 

.973 

.943 

.903 

.848 

.800 

. 744 

.680 . 45 . 607 

.977 

.946 

.890 

.832 

. 761 

.687 

.609 

. 530 

.440 

4.2,-1 0.871 

3.2,-1 . 773 

2.4, -1 .643 

1.8, -1 .502 

1.3, -1 .347 

1. 0,-1 .240 

7.5,-2 .148 

5.6,-2 .082 

4.2,-2 .041 

5.6,-1 .985 

4.2,-1 .954 

3.2,-1 .895 

2.4,-1 . 798 

1.8, -1 .670 

1.3, -1 . 505 

1. 0,-1 .372 

7.5, -2 .242 

5.6, -2 .138 

4.2, -2 .068 3.2, -2 .029 

4.2, -1 .988 3.2,-1 .964 

2.4,-1 .912 

1.8, -1 .827 

1.3,-1 .698 

1.0, -1 .578 

7.5,-2 .442 

5.6,-2 .314 

4.2,-2 .206 

3.2,-2 .126 

2.4,-2 .067 

1.8, -2 .030 

2.4,-1 .971 

1.8, -1 .931 

1.3,-1 .857 

1.0,-1 . 778 

7.5,-2 .679 

5.6,-2 .573 

4.2, -2 .470 

3.2,-2 .379 

2.4,-2 . 291 

1.8,-2 .212 

1. 3,-2 .136 

1.0,-2 .086 

7.5,-3 .046 

1.8, 0 0. 977 

1.3,0 .937 

1.0,0 .883 7.5,-1 .806 

5.6,-1 . 716 

4.2, -1 .624 

3.2, -1 .536 

2.4, -1 .442 

1.8, -1 .347 

1.3, -1 .243 

1.3,0 .971 

1.0,0 .932 

7.5, -1 .864 

5.6, -1 . 771 

4.2,-1 .664 

3.2,-1 . 560 

2.4,-1 . 452 

1.8, -1 .350 

1.3, -1 .244 

1.0, -1 .168 

1.3,0 .989 

1.0,0 .967 

7.5, -1 .917 

5.6, -1 .835 

4.2, -1 . 727 

3.2, -1 .610 

2.4, -1 .484 

1.8, -1 .365 

1.3, -1 • 248 

1.0, -1 .169 

7.5,-1 .101 

1.0, 0 . 986 

7.5, ~1 .956 

5.6,-1 .894 

4.2,-1 . 798 

3.2, -1 .681 

2.4, -1 • 542 1.8, -1 .405 

1.3, -1 .267 

1.0,-1 .177 

7.5, -2 .103 

5.6,-2 .053 

4.2, -2 .023 
r/a ,_~ II r/a 

11o= 105°; fo=0.4D-Continued 

0.50 7.5, -1 0. 979 0. 70 5.6, -1 . 938 

4.2, -1 .863 3.2, -1 . 758 2.4, -1 . 620 1.8, -1 .471 1.3,-1 .311 1. 0,-1 .204 7.5, -2 .115 5.6, -2 .056 4.2,-2 .024 

.60 5.6, -1 .984 .80 4.2, -1 .951 

3.2,-1 .888 2.4, -1 . 784 1.8, -1 . 649 

1.3, -1 . 476 1.0, -1 .339 

7.5, -2 . 210 5.6,-2 .112 4.2, -2 . 051 3.2, -2 . 019 

9 IJo= 105°; 6o =0.45 

[Pl. 59] 

0.05 2. 4,1 0.987 0.40 1. 8,1 . 981 1. 3,1 .975 1. 0,1 . 968 7. 5,0 . 959 

5.6,0 . 948 

4.2,0 .933 

.10 1. 0,1 .983 

7.5,0 .969 5.6,0 .953 . 45 4.2,0 .935 

3.2,0 . 917 

2.4,0 .894 

1.8,0 .866 1. 3, 0 .825 

.15 5.6,0 .981 

4.2,0 .961 

3.2,0 .936 

2.4,0 .904 

1.8,0 .870 1.3,0 .826 .50 1. 0, 0 . 785 7.5, -1 . 732 

.20 4.2,0 .989 

3.2,0 .972 

2.4,0 . 941 

1.8,0 .899 

1.3,0 .842 1.0,0 . 792 

7.5, -1 . 734 5.6, -1 .667 .60 4.2, -1 . 593 

.25 2.4,0 .976 1.8,0 .943 

1.3,0 .885 1.0,0 .825 7.5, -1 . 752 5.6, -1 .675 4.2, -1 . 594 

3.2, -1 .513 2.4, -1 . 421 . 70 

. 30 1.8,0 . 976 1.3,0 .934 

1.0,0 .879 

7.5, -1 . 799 5.6, -1 . 706 4.2,-1 .610 3.2, -1 . 519 

2.4, -1 .422 1.8, -1 .325 1. 3, -1 .221 

.35 1.3,0 .970 .80 1.0,0 .930 7. 5, -1 .859 

5.6,-1 . 762 4.2, -1 .652 3.2, -1 .543 2.4, -1 .433 1.8, -1 .328 1.3, -1 . 221 1.0, -1 .147 

.40 1.3,0 .988 1. 0,0 .965 

Tt 

riB 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 4.2, -2 3.2,-2 

2.4,-2 

1.8,-2 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8, -2 1.3, -2 1. 0,-2 

7.5, -3 

7.5, -1 5.6, -1 4.2, -1 3. 2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

1. 0,0 

7. 5,-1 

5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6,-2 

4.2, -2 

4.2, -1 3.2, -1 2.4, -1 1. 8,-1 

1.3, -1 1.0,-1 

7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4.-2 

1.8, -2 

2.4, -1 1. 8,-1 

1. 3,-1 

1.0, -1 7.5, -2 5.6, -2 i.2,-2 

3.2, -2 2.4, -2 1. 8,-2 

1.3, -2 1.0, -2 7.5,-3 

TABLES 

1-~ Bo 

0.987 

. 961 

.906 

.816 

. 679 

. 554 

.416 

. 291 

.190 

.117 

.063 

.029 

. 969 

. 926 

.847 

. 764 

.661 

. 556 

.457 

.371 

.287 

.211 

.136 

. 086 

.046 

0.914 

.829 

.717 

.596 

.465 

.344 

. 226 

.148 

.083 

. 985 

.954 

.890 

. 790 

.669 

.526 

.385 

.245 

.156 

. 085 

.039 

.978 

.936 

.857 

. 749 

.606 

. 453 

. 290 

.183 

.096 

.043 

.984 

. 949 

.884 

. 776 

. 636 

.458 

.320 

.193 

.099 

.042 

.987 

. 960 

902 

.809 

. 668 

.539 

. 402 

. 279 

.1R2 

.113 

. 061 

.029 

.968 

.923 

.842 

. 756 

. 651 

. 546 

.450 

.367 

. 286 

. 210 

.136 

.086 

.046 

r/a 

0.05 

.10 

.15 

.20 

. 25 

.30 

.35 

.40 

0.05 

.10 

.15 

.20 

Tt 

;:28 

2.4, 1 1. 8,1 

1. 3,1 

1.0, 1 7.5,0 

5.6,0 

4.2,0 

1. 0,1 

7.5,0 

5. 6, 0 4.2,0 

3.2,0 

2.4,0 

1. 8, 0 1. 3,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1. 3, 0 1.0,0 

7.5, -1 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 

1. 8, 0 1. 3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2;-1 

2.4, -1 1.8, -1 1.3, -1 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 

1. 3, 0 1. 0,0 

7.5,0 

5.6,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 

r/a 

11o=105°; .!=0.50 

IJo 

[Pl. 60] 

0.987 0.40 .981 

.974 

.968 

.959 

.947 

. 932 

.982 

.969 .45 .953 

.935 

. 916 

.893 

.864 

.823 

.981 

.961 

.935 

.903 

.868 .50 . 824 

. 782 

. 729 

.988 

.971 

.940 

.898 

.840 

. 790 

. 731 .60 . 663 

.588 

.976 

.943 

.884 

.. 823 

. 749 

.671 

.590 

.507 . 70 . 414 

.976 

.933 

.877 

. 796 

. 702 

.605 

. 513 

. 416 

. 318 

. 213 .80 .969 

.929 

.857 

. 759 

.647 

.538 

.426 

. 321 

. 214 

.140 

.988 

.965 

8 11o= 120°; 00 =0.05 

[Pl.61] 

0.989 0.25 .987 

.988 

.984 

.980 

.975 

.990 .30 

.984 

.978 

. 971 

.962 

.954 

.985 

.977 .35 .965 

.956 

.945 

.933 

Tt 

riB 

7.5, -1 5.6,-1 

4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1. 3,-1 

1.0, -1 7.-5,-2 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1. 8,-1 

1.3, -1 1. 0, -1 7.5,-2 

5.6, -2 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 

3.2, -1 2.4,-1 

1.8, -1 1. 3,-1 

1.0, -1 7.5,-2 

-5.6,-2 

4.2,-2 

3.2, -2 2.4,-2 

1. 8,-2 

1. 3,-2 

1.0, -2 7.5,-3 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

23 

1-~ Bo 

0.913 

.827 

.713 

.591 

.459 

.337 

.219 

.141 

.077 

.985 

. 953 

.888 

. 787 

.665 

.520 

.378 

.238 

.149 

.079 

.035 

.978 

.935 

.856 

. 745 

.601 

.446 

.283 

.176 

. 091 

.038 

.984 

.948 

.882 

. 774 

.632 

.453 

.314 

.187 

.095 

.040 

.987 

.959 

.901 

.806 

.664 

.535 

.397 

.275 

.179 

.112 

.061 

.029 

.990 

.968 

.923 

.840 

. 753 

.648 

.543 

.448 

.366 

.285 

.210 

.136 

.086 

.046 

0.986 

.974 

.962 

.948 

.934 

.919 

.904 

.984 

.973 

. 957 

.940 

.922 

.905 

.886 

.983 

.969 

.951 

.930 

.910 
24 

r/a 

0.35 2.4,-1 

1.8,-1 

1.3, -1 

.40 7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 

.4-.5 7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

.50 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

.60 4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0,-1 

0.05 1. 8,1 

1.3,1 

1.0,1 

7.5,0 

5.6,0 

.10 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

.15 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

.20 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0,0 

7.5,-1 

5.6, -1 

.25 2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 

.30 1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-~ II r/a 

8 8o= 120°; Bo =0.05-Contlnued 

0.888 0.60 .866 

.840 

.980 

.964 

.943 

.920 

.895 

.870 . 70 

.841 

.817 

.989 

.976 

.957 

.934 

.907 

.879 

.846 

.819 

. 788 

. 755 

.985 

.970 

.949 .80 

.923 

.893 

.856 

.826 

. 792 

. 756 

. 719 

.680 

.633 

.988 

.975 

.956 

.929 

.893 

. 859 

8 8o= 120°; Bo =0.10 

[PI. 62] 

0.989 0.35 

.986 

.983 

.979 

.974 

.984 

.976 

.969 

.961 

.952 .40 .940 

.989 

.980 

.969 

.956 

.942 

.925 

.910 

.985 

.971 .45 .954 

.931 

.913 

.891 

.867 

.987 

.972 

.949 

.925 

.898 

.870 .50 

.841 

.811 

. 987 

.969 

.946 

.916 

.882 

.847 

.813 

. 777 

. 737 

Tt 

Tii 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3, -2 1.0,-2 

2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8,-2 

1.3, -2 1.0, -2 7.5, -3 

5.6,-3 

4.2,-3 

3.2,-3 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2, -2 3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0, -2 7.5,-3 

5.6,-3 

4.2,-3 

3.2,-3 

2.4,-3 

1.8, -3 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4 -2 

1-~ Bo 

0.819 

• 774 

.729 

.684 

.635 

.582 

.517 

.460 

.980 

.962 

.936 

.008 

.872 

.827 

• 775 

.721 

.660 

.596 

.522 

.462 

.394 

.323 

.254 

.191 

.984 

.969 

.953 

.929 

.898 

.858 

.811 

. 751 

.680 

.590 

.511 

.424 

.338 

.260 

.193 

.132 

.082 

0.984 

.967 

.939 

.903 

.863 

.823 

. 781 

. 738 

.688 

.983 

.961 

.928 

.887 

.843 

. 794 

. 745 

.690 

.645 

.592 

.978 

.952 

.914 

.870 

.818 

. 762 

.699 

.649 

.594 

.535 

.989 

.971 

.940 

.900 

.849 

. 790 

.720 

.662 

.600 

. 537 

.474 

.411 

.343 

r/a ·-i; II r/a 

8 8o= 120°; Bo = O.lt--Contlnued 

0.60 4.2,-1 0.977 0. 70 

3.2,-1 .951 

2.4,-1 .912 

1.8,-1 .861 

1.3, -1 . 791 

1.0, -1 .727 

7.5,-2 .650 

5.6, -2 .570 

4.2, -2 .491 .80 

3.2, -2 .419 

2.4,-2 .345 

1.8, -2 .274 

1.3, -2 .197 

1.0, -2 .142 

. 70 3.2,-1 .982 

2.4,-1 .960 

1.8, -1 .926 

1.3, -1 .874 

1.0, -1 .821 

7.5,-2 . 751 

5.6,-2 .668 

4.2,-2 .577 

[Pl. 63] 

0.05 2.4, 1 0.988 0.40 

1.8, 1 .984 

1.3, 1 .980 

1.0, 1 .975 

7.5,0 .969 

5. 6, 0 .962 

4.2, 0 .953 

.10 1. 0,1 .985 

7.5,0 .976 

5.6,0 .965 

4.2, 0 .954 .45 3.2,0 .943 

2.4,0 .929 

1.8,0 .913 

.15 5.6,0 .984 

4.2,0 .971 

3.2,0 .954 

2.4,0 .935 

1.8,0 .915 

1.3,0 .890 

1.0,0 .868 7.5,-1 .839 

.50 

.20 3.2,0 .978 

2.4,0 .958 

1.8,0 .932 

1.3,0 .899 

1. 0,0 .872 

7.5,-1 .840 

5.6,-1 .805 

4.2, -1 . 766 

.25 2.4,0 . 981 

1.8,0 .960 

1.3,0 .924 

1.0,0 .890 

7.5,-1 .851 .60 

5.6,-1 .809 

4.2,-1 . 767 3.2,-1 . 724 

2.4,-1 .674 

.30 1.8,0 .982 

1.3,0 .954 

1.0,0 .921 

7.5,-1 .876 

5.6,-1 .826 

4.2,-1 . 776 3.2,-1 . 727 

2.4,-1 .675 

1.8, -1 .619 

.35 1.3,0 .977 . 70 

1.0,0 . 952 

7.5,-1 .911 

5.6,-1 .857 

4. 2, -1 . 799 

3.2,-1 . 741 

2. 4, -1 .681 

1.8,-1 .621 

1.3,-1 . 552 

1.0,-1 .493 

1-~ 80 

3.2,-2 0.485 

2.4,-2 .388 

1.8, -2 .297 

1.3, -2 .206 

1.0,-2 .144 

7.5, -3 .090 

5.6,-3 .050 

2.4,-1 . 986 

1. 8, -1 .969 

1.3, -1 .940 

1.0,-1 .907 

7.5,-2 .862 5.6,-2 .803 4.2,-2 . 730 

3.2,-2 .648 

2.4,-2 .548 

1.8,-2 .439 

1.3, -2 .314 

1.0, -2 .220 

7.5,-3 .133 

5.6,-3 .069 

4.2, -3 .030 

1.0,0 0.975 

7.5,-1 .943 

5.6,-1 .895 

4.2,-1 .834 3.2,-1 • 770 

2.4, -1 • 700 

1.8,-1 .631 

1.3,-1 .555 

1.0, -1 .494 

7.5,-2 .427 

1.0,0 .988 

7.5,-1 .968 

5.6,-1 .929 

4.2,-1 .875 

3.2,-1 .810 

2.4,-1 • 734 1.8,-1 .655 

1.3,-1 .568 1.0,-1 .500 7.5,-2 .428 5.6,-2 .357 

7.5,-1 .983 

-5.6,-1 .957 

4. 2,-1 .912 

3.2,-1 .854 

2.4, -1 • 779 

1.8, -1 .695 

1.3,-1 .596 1.0,-1 .518 

7.5,-2 .437 

5.6,-2 .360 

4.2,-2 . .287 

3.2,-2 .222 

2.4,-2 .158 

- 5.6,-1 .988 

4.2,-1 .966 3.2, -1 .929 

2.4,-1 .871 

1.8,-1 . 797 

1.3, -1 .697 

1.0,-1 .608 7.5,-2 .506 5.6,-2 .403 

4.2, -2. .310 

3.2,-2 .232 

2.4, -2 .161 

1.8,-2 .104 

1.3, -2· .055 

1.0, -2· .029 

3.2,-1 .973 

2.4, -1 .941 

1.8,-1 .892 

1.3,-1 .816 

1.0,-1 . 741 

7.5,-2 .645 

5.6, -2 .536 4. 2, -2· .422 3.2,-2 .316 

2.4,-2. .214 
r/a 

0. 70 

.80 

I 

I 

0.05 

.10 

.15 

.20 

. 25 

.30 

.35 

.40 

Tt 

fiB 

1.8, -2 1.3, -2 1.0, -2 

2.4,-1 

1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

3. 2,1 

2.4, 1 1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1.8,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

4. 2,0 

3.2,0 

2. 4,0 

1.8,0 

1. 3, 0 1.0,0 

7.5,-1 

5.6, -1 4.2, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 

1.8,0 

1.3,0 

1. 0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

·-~ II r/a 

(J 

fJo=l20°; ~=0.15-Continued 

0.131 0.80 5.6, -2 .065 4.2,-2 .032 3.2,-2 

2.4,-2 . 979 1.8,-2 

.955 1.3, -2 .912 1. 0,-2 .865 7.5, -3 .801 I 5.6, -3 

[Pl. 64) 

0.990 0.40 2.4, -1 .985 1.8, -1 .980 1.3,-1 

.974 1.0, -1 . 968 7.5, -2 .960 

. 950 .45 1.0,0 

.939 7.5, -1 5.6, -1 .990 4.2, -1 .981 3.2, -1 . 969 2.4, -1 .955 1.8, -1 .940 1.3, -1 .926 1.0,-1 

.908 7.5,-2 .887 5.6,-2 

4.2, -2 . 980 

. 962 .50 7.5,-1 

.941 5.6,-1 

.916 4.2,-1 

.890 3.2,-1 .858 2.4, -1 .829 1.8, -1 . 792 1.3, -1 1. 0,-1 

.987 7.5, -2 .971 5.6, -2 . 945 4.2, -2 . 912 3.2, -2 .870 2.4, -2 .834 

. 794 .60 5.6,-1 . 749 4.2,-1 .699 3.2,-1 

2.4,-1 . 975 1.8, -1 . 948 1.3, -1 . 902 1.0, -1 .858 7.5, -2 .807 5.6, -2 . 754 4.2, -2 . 700 3.2, -2 .646 2.4, -2 .583 1.8,-2 

. 976 . 70 4.2, -1 . 941 3.2,-1 . 898 2.4, -1 .840 1.8, -1 ·. 776 1.3, -1 . 711 1.0,-1 .650 7.5, -2 . 584 5.6,-2 . 516 4.2, -2 3.2,-2 

.970 2.4, -2 . 938 1.8,-2 .884 1.3, -2 . 816 

. 740 .80 2.4, -1 . 668 1.8,-1 . 592 1.3,-1 . 518 1.0,-1 . 435 7.5,-2 .368 5.6, -2 4.2, -2 .988 3.2, -2 .967 2.4, -2 .926 1.8,-2 .864 1.3, -2 . 786 1.0, -2 

I . 704 7.5,-3 

TABLES 

1-.!. Bo r/a 

0. 721 

.627 

. 527 

.413 

.301 

.187 

.114 

.058 

0.05 3.2,1 

2. 4,1 

1.8, 1 1.3, 1 1. 0,1 

7. 5,0 

5.6,0 

4.2,0 

.024 .10 1.3, 1 1. 0,1 

7. 5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

.15 7.5,0 

o. 616 

. 530 

.439 

.369 

.296 

5.6,0 

4.2,0 

3. 2,0 

2.4,0 

1.8,0 

1.3,0 

.985 

.958 

1.0,0 

7.5,-1 

.909 

.838 

. 755 

.659 

.560 

.455 

.376 

.298 

.225 

.161 

. 20 4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

.979 

.944 

.886 

.811 

.715 

.610 

.489 

.398 

.308 

.229 

. 25 3.2,0 

2. 4, 0 1.8,0 

1. 3, 0 1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

.161 

.108 

.063 

.30 1.8,0 

1.3,0 

1.0,0 

.984 

.955 

.908 

.834 

. 739 

. 615 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2. 4,-1 

1.8, -1 

. 507 

.389 

.279 

.187 

.118 

.066 

.033 

.35 1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

.987 

.965 

.923 

.860 

2.4,-1 

1.8, -l 

1.3, -1 1.0, -1 

. 765 

.672 

.558 

.435 

.40 1.3,0 

1.0,0 

7.5, -1 

.315 

. 211 

.123 

.060 

.021 

. 973 

.941 0.05 3.2, 1 .886 2.4, 1 .828 1.8, 1 . 749 1. 3,1 . 656 1. o, 1 . 552 7. 5,0 . 448 5.6,0 

.339 4.2,0 .240 

.147 .10 1.3, 1 

.090 1. 0,1 .047 7. 5,0 

5.6,0 

4.2,0 

·~ II 

r/a 

6o=l20°; !=o.25 fJo 

[Pl. 65] 

0.988 0.40 .982 

.976 

.968 

.961 

.952 

.940 

.926 

.988 .45 .977 

.963 

.946 

.928 

.911 

.889 

.864 

.829 

.990 

.976 

• 954 

. 929 .50 .899 

.867 

.830 

. 795 

. 751 

.985 

.965 

. 934 

.894 

.843 

.801 

. 753 .60 .699 

.640 

.989 

.970 

.937 

.882 

.830 

. 768 

. 705 

.642 

. 578 

.505 . 70 

.971 

. 929 

.877 

.808 

. 731 

.654 

.583 

.507 

.429 

.990 

.964 .80 .925 

.861 

. 779 

.689 

.603 

. 516 

.432 

.341 

.271 

. 985 

.960 

. 911 

fJo=l20°; .!=0.30 fJo 

[Pl. 66] 

0.986 0.10 .979 

.972 

.964 

.956 

.945 .15 .932 

. 916 

.986 

.974 

.957 

.938 

.918 

25 

1-.!. Bo 

5.6, -1 0.836 4.2, -1 . 743 3.2, -1 .646 2. 4, -1 .543 1.8, -1 .446 

1.3, -1 .345 1.0,-1 .272 7.5, -2 . 200 

1.0,0 .982 

7.5, -1 .949 

5.6, -1 .890 

4.2, -1 .805 3.2,-1 . 707 2.4, -1 .593 

1.8,-1 .480 1.3, -1 .362 1.0,-1 .280 

7.5, -2 .202 5. 6,-2 .136 4.2, -2 .085 

7.5,-1 .974 

5.6,-1 .933 4.2,-1 .863 3.2,-1 . 773 2. 4, -1 .660 

1.8, -1 .537 1.3, -1 .402 

1.0,-1 .304 7.5, -2 .213 5.6,-2 .140 4. 2, -2 .085 3.2, -2 .048 

5.6, -1 .981 4. 2,-1 .946 3.2,-1 .889 

2.4,-1 .801 1.8, -1 .689 

1.3, -1 .546 1.0, -1 .426 7.5,-2 .302 5.6,-2 .194 

4.2,-2 .112 3.2, -2 .059 

2.4,-2 .026 

4.2,-1 .985 3.2, -1 .958 2. 4, -1 .908 1.8, -1 .832 1.3, -1 . 720 

1.0,-1 .615 7.5, -2 .490 

5.6, -2 .363 4.2, -2 .247 3.2, -2 .155 2.4,-2 .083 1.8, -2 .037 

3.2,-1 .989 

2.4, -1 . 968 

1.8, -1 .930 

1.3, -1 .864 1.0, -1 . 796 7.5,-2 . 708 5.6,-2 .607 4.2,-2 .502 3.2, -2 .403 2.4,-2 .305 1.8,-2 .218 1.3,-2 .137 1. 0,-2 .087 7.5,-3 .046 

3.2,0 0.898 

2.4,0 .873 1.8,0 .844 1.3,0 .804 

7.5,0 .988 5.6,0 .972 

4.2,0 .948 

3.2,0 .919 

2.4,0 .884 

1.8,0 .848 1.3,0 .805 1.0,0 . 766 7.5,-1 . 716 
26 

r/a 

0. 20 4.2,0 

3.2,0 

2.4,0 

1. 8, 0 1. 3, 0 1. 0, 0 7.5, -1 5.6, -1 4.2, -1 

. 25 3.2,0 

2.4,0 

1.8,0 

1.3, 0 1. 0,0 

7. 5,-1 

5.6, -1 4.2, -1 3.2, -1 2.4,-1 

.30 2.4,0 

1. 8, 0 1. 3, 0 1. 0, 0 7.5, -1 5.6,-1 

4,2, -1 3.2,-1 

2.4,-1 

1.8, -1 

.35 1. 8, 0 1. 3, 0 1. 0, 0 7.5,-1 

5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8,-1 

l.3, -1 l.O, -1 

.40 1.3, 0 1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1. 0, -1 7.5,-2 

.45 1. 0, 0 7.5, -1 5.6, -1 4.2,-1 

0.05 3.2, 1 2.4,1 

1.8, 1 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

.10 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 1.3,0 

.15 7.5, 0 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3, 0 1. 0, 0 7.5, -1 

.20 4.2,0 

3.2,0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-i. II r/a 

Oo= 120°; :0 =0.3o-Continued 

0.982 0.45 3.2, -1 0.666 .960 2.4, -1 .539 . 925 1.8, -1 . 415 .879 1.3, -1 .291 .821 1. 0,-1 .208 . 773 7.5, -2 .136 .718 5.6, -2 . 081 .657 4.2,-2 .043 . 591 .50 7.5, -1 .970 

.988 5.6, -1 .923 .966 4.2, -1 .844 .928 3.2, -1 . 742 .866 2.4,-1 .613 .805 1.8, -1 .478 . 735 1.3, -1 • 333 .664 1.0, -1 .234 .592 7.5, -2 .147 .521 5.6,-2 . 084 .442 4.2, -2 ,044 

.989 .60 5.6, -1 .978 . 967 4.2, -1 .939 . 918 3.2,-1 .873 .860 2.4,-1 . 773 . 781 1.8, -1 . 647 .693 1.3, -1 .490 .607 1. 0,-1 .365 .527 7.5,-2 .241 .443 5.6, -2 .140 .360 4.2,-2 . 071 3.2, -2 . 031 .988 

.959 . 70 4.2,-1 .982 

.914 3.2, -1 . 952 .841 2.4, -1 .895 . 747 1.8,-1 .809 .646 1.3, -1 .684 . 549 1.0, -1 . 570 .453 7.5,-2 .440 .363 5.6, -2 .316 .268 4.2, -2 .209 

.199 3.2, -2 .128 2.4, -2 . 068 .983 1.8,-2 .031 .955 

.898 .80 3.2, -1 .987 .813 2.4,-1 .963 . 707 1.8, -1 .920 . 598 1.3, -1 .845 .483 1.0, -1 . 770 .377 7.5,-2 .675 .273 5.6,-2 .573 .200 4.2,-2 .472 .134 3.2,-2 .381 2.4,-2 .292 .979 1.8, -2 . 212 .942 1. 3, -2 .136 .874 1. 0,-2 . 086 . 777 7.5, -3 .046 

[PI. 67] 

0.985 0.20 2.4,0 0.917 .977 1. 8, 0 .867 .969 1.3, 0 .803 .960 1. 0, 0 . 750 . 951 7.5,-1 .690 . 939 5.6, -1 .624 .925 4.2, -1 .552 .907 

.984 .25 3.2,0 .986 

.971 2.4,0 .963 

.953 1. 8, 0 .921 

.932 1. 3, 0 .852 

.910 1.0,0 . 786 

.887 7.5, -1 . 709 

. 861 5.6,-1 .631 

.829 4.2, -1 .554 

. 785 3.2, -1 .477 2.4, -1 .393 . 987 

.969 .30 2.4,0 .988 

.943 1. 8, 0 .964 . 910 1. 3, 0 . 910 .873 1. 0, 0 .846 .833 7.5, -1 . 759 . 786 5.6, -1 .663 . 743 4.2, -1 .569 .688 3.2, -1 .483 2.4, -1 .394 

.981 1.8, -1 .307 . 956 1.3, -1 .215 

r/a 

0.35 1. 8,0 

1.3, 0 1. 0, 0 7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 

.40 1.3, 0 1.0, 0 7.5,-1 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8,-1 

1.3, -1 1.0, -1 7.5, -2 

. 45 1. 0, 0 7.5, -1 5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 

.50 7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 

0.05 3.2, 1 2.4, 1 1. 8,1 

1.3, 1 1.0,1 

7.5,0 

5.6,0 

4.2, 0 

.10 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4, 0 1.8,0 

1.3,0 

.15 7.5, 0 5.6,0 

4.2,0 

3.2, 0 2.4, 0 1.8,0 

1.3, 0 1. 0, 0 7.5, -1 

.20 4. 2, 0 3.2,0 

2.4,0 

1.8, 0 1.3,0 

1. 0, 0 7.5,-1 

5.6,-1 

4. 2,-1 

.25 3.2,0 

2.4,0 

1. 8, 0 1.3,0 

1.0, 0 7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

·-i. II r/a 

Oo=120°; !=0.35-Continued 

Oo 

0.987 0. 50 .955 

.905 

.825 

. 722 

.611 .60 .507 

.404 

.310 

.215 

.149 

.981 

.950 

.888 

. 794 

.678 . 70 .559 

.437 

.326 

.220 

.150 

.091 

.977 

. 936 

.862 

. 755 

.634 

.497 .80 .366 

.239 

.158 

.093 

.048 

.967 

. 915 

.828 

.716 

.577 

.433 

.283 

0 Oo= 120°; Bo =0.40 

[PI. 68] 

0.984 0.30 .976 

.967 

.957 

.948 

.935 

.920 

.901 

.983 

. 969 

.950 

.927 .35 .903 

.880 

.851 

.817 

. 771 

.986 

.967 

.939 

.904 

.864 

. 822 

. 771 .40 . 726 

.667 

.979 

.954 

. 912 

.858 

. 790 

. 733 

. 670 

.600 

.524 .45 .986 

.960 

. 915 

.842 

. 771 

.690 

.607 

. 526 

.445 

.358 

1-!. so 

1.0, -1 0.184 7.5,-2 .104 5.6,-2 .052 4.2,-2 .022 

5.6,-1 .976 4.2,-1 .933 3.2,-1 .860 2.4,-1 . 751 1.8, -1 .615 1.3,-1 .449 

1.0, -1 .320 7.5,-2 .200 5.6, -2 .108 4.2, -2 .049 

4.2, -1 .981 

3.2,-1 .948 

2.4,-1 .884 1.8, -1 . 790 

1.3, -1 .655 1.0, -1 .536 7.5,-2 .406 5.6,-2 .287 4.2, -2 .188 3.2, -2 .117 2.4, -2 .063 1.8, -2 .029 

3.2,-1 .986 

2.4, -1 .959 

1.8, -1 .911 

1.3, -1 .831 1.0, -1 . 750 7.5, -2 .652 5.6, -2 .551 4.2, -2 .455 3.2, -2 .370 2.4, -2 .287 1.8, -2 .211 1.3, -2 .136 1.0, -2 .086 7.5, -3 .046 

2.4,0 0.987 

1.8,0 .961 

1.3,0 .904 1. 0, 0 .835 7.5,-1 . 743 5.6,-1 . 641 4.2, -1 .542 3.2,-1 .451 2.4,-1 .359 

1.8, -1 .271 1.3, -1 .179 

1.8,0 .986 

1.3,0 .952 1. 0,0 .899 

7.5,-1 . 813 5.6,-1 . 704 4.2, -1 .586 3.2, -1 .477 2.4,-1 .370 1.8, -1 . 274 1.3, -1 .179 1. 0,-1 .117 

1.3,0 .980 1. 0,0 .947 

7.5,-1 .881 5.6,-1 . 780 4.2,-1 .657 3.2,-1 .532 2.4,-1 .404 1.8, -1 .290 1.3, -1 .184 1. 0, -1 .118 7.5,-2 .064 

1.0,0 .976 7.5,-1 .932 

5.6,-1 .852 4.2, -1 . 739 

3.2,-1 .610 2.4,-1 .466 1. 8, -1 .331 1.3, -1 .203 1.0,-1 .126 7.5,-2 .067 5.6, -2 .030 
r/a 

0.50 

.60 

. 70 

0. 05 

.10 

.15 

. 20 

. 25 

.30 

.35 

Tt 

;:28 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 

5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

4.2, -1 3.2, -1 2.4, -1 

4.2, 1 3.2, 1 2.4, 1 1. 8,1 

1. 3,1 

1. 0, 1 7.5,0 

5. 6, 0 4.2,0 

1. 3, 1 1. 0,1 

7. 5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1. 8, 0 1. 3, 0 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4, 0 1. 8, 0 1. 3, 0 1. 0, 0 7.5, -1 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 1. 3, 0 1. 0, 0 7.5, -1 5.6, -1 4.2, -1 

3. 2, 0 2.4,0 

1.8, 0 1. 3, 0 1. 0, 0 7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

2.4,0 

1.8,0 

1. 3, 0 1. 0, 0 7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 

1. 8, 0 1.3, 0 

·-~ II r/a 

eo= 120°; io =0.4o-Continued 

0.965 0. 70 .909 

. 817 

. 698 

.551 

.400 

. 249 

.152 

. 078 

. 034 

.974 .80 

.928 

.851 

. 734 

.591 

.420 

.291 

.175 

.090 

. 039 

. 979 

.944 

. 877 I 

eo=l20°; !=0.45 

eo 

[Pl. 69] 

0.990 0.35 .983 

.975 

.966 

. 956 

. 946 

.933 

.917 

.897 

.983 .40 .968 

. 948 

.924 

.900 

.875 

.846 

.810 

. 762 

.986 

.966 

.936 . 45 .901 

.859 

. 815 

. 763 

.715 

.655 

.978 

.952 

.908 

.852 

. 782 . 50 . 723 

.657 

. 585 

. 507 

.985 

.959 

.912 

.836 

. 763 

.678 

.593 .60 . 509 

.426 

.337 

. 986 

.960 

.900 

.829 

. 733 

.628 

.525 . 70 .432 

.338 

. 249 

.158 

. 985 

. 950 

TABLES 

1.8, -1 0. 777 1.3, -1 .635 1. 0,-1 .513 7.5, -2 .384 5.6, -2 . 270 4.2,-2 .178 3.2,-2 .112 2.4,-2 . 061 1. 8,-2 . 029 

3.2, -1 .985 

2.4, -1 .957 1. 8,-1 .906 

1.3, -1 .820 1. 0,-1 . 736 7.5,-2 .637 5.6,-2 .538 4.2,-2 .447 3.2, -2 .366 2.4, -2 .285 1. 8, -2 .210 1.3, -2 .136 1.0,-2 . 086 7.5,-3 . 046 

1. 0, 0 0.895 

7.5, -1 .806 5.6, -1 .693 

4.2,-1 . 571 3.2, -1 .459 

2.4, -1 .349 

1.8, -1 .252 1.3, -1 .159 1. 0,-1 .099 

1. 3, 0 .979 1. 0, 0 .945 

7.5, -1 .876 5.6, -1 . 772 4.2, -1 .644 3.2, -1 . 515 2.4,-1 .384 1. 8,-1 .269 

1.3, -1 .164 1.0, -1 .100 7.5,-2 .051 

1. 0, 0 .975 

7.5, -1 . 929 

5.6, -1 .847 4.2, -1 . 729 

3.2,-1 .596 

2.4, -1 .448 1.8, -1 .310 1.3, -1 .183 1. 0,-1 .108 7.5,-2 .053 5.6,-2 . 021 

1. 0, 0 .990 

7.5,-1 . 964 

5.6,-1 .906 

4.2, -1 . 810 3.2, -1 .686 2.4, -1 . 535 1. 8,-1 .381 1.3, -1 . 229 

1.0, -1 .135 7.5, -2 . 064 5.6, -2 .025 

5.6,-1 .973 

4.2, -1 . 925 

3.2, -1 .845 2.4,-1 . 725 1. 8,-1 . 577 1. 3,-1 .403 1. 0,-1 . 275 7.5,-2 .161 5.6,-2 . 081 4.2,-2 . 034 

4.2, -1 . 978 

3.2, -1 .942 

2.4, -1 .872 1. 8,-1 . 769 1.3, -1 .624 1. 0,-1 . 500 7.5,-2 .372 5.6,-2 .262 

r/a 

·~ II 

0.70 4.2,-2 0.174 3.2, -2 .110 2.4,-2 .061 1.8,-2 .029 

.80 3.2,-1 .984 

2.4, -1 . 955 

1.8, -1 .902 

1.3, -1 .814 1.0, -1 . 727 

[Pl. 70] 

0.05 4. 2,1 0.990 

3.2, 1 .983 2.4,1 . 975 1. 8,1 . 966 1. 3,1 .955 1. 0,1 . 945 

7.5,0 . 932 

5.6,0 .916 

4.2,0 . 896 

.10 1. 3,1 .982 1. 0,1 • 968 7.5,0 .947 

5.6,0 .923 4.2,0 .899 

3.2,0 .874 2.4,0 .844 1.8,0 .808 1.3,0 . 759 

.15 7. 5,0 . 986 

5.6,0 . 966 4.2,0 .936 

3.2,0 .899 

2.4,0 .857 1.8,0 . 813 1.3,0 . 760 1. 0,0 . 712 7.5, -1 .651 

.20 4. 2, 0 .978 

3.2,0 . 951 2. 4. 0 .907 

1.8,0 . 851 1.3,0 . 779 1. 0,0 . 720 7.5, -1 . 653 5.6, -1 . 580 4.2, -1 . 501 

. 25 3.2,0 . 985 

2.4, 0 .958 

1.8,0 . 911 

1.3,0 .834 1.0,0 . 760 7.5, -1 .675 5.6, -1 . 588 

4.2,-1 . 503 3.2, -1 .420 2.4, -1 .330 

.30 2. 4, 0 . 986 1. 8, 0 .959 

1.3,0 .899 1. 0, 0 .827 7. 5,-1 . 730 5.6, -1 .623 4.2, -1 . 520 3.2, -1 . 426 2.4, -1 .332 1.8, -1 . 242 1.3, -1 .152 

.35 1.8, 0 . 985 1. 3, 0 . 949 

1.0,0 .894 

7.5, -1 .804 5.6,-1 .689 

4.2,-1 . 566 3.2, -1 .453 2.4, -1 .343 1.8, -1 . 245 1.3,-1 .152 1.0, -1 .093 

r/a 

0.80 

0.40 

.45 

.50 

.60 

. 70 

.80 

Tt 

TiS 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3,-2 

1. 0,-2 

7.5, -3 

1.3,(' 

1.0,C' 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

1. 0, () 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3,-1 

1.0, -1 7.5, -2 

1.0,(' 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3,-1 

1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 1.8,-2 

3.2,-:-1 

2. 4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0, -2 7.5,-3 

27 

1-!. 80 

0.628 

.531 

.443 

.364 

.285 

.210 

.136 

.086 

.046 

0.979 

.944 

.875 

. 769 

.640 

. 510 

.377 

.262 

.157 

.094 

.046 

. 974 

. 928 

.845 

. 726 

.591 

.442 

.304 

.177 

.102 

.049 

.990 

.964 

.905 

.807 

.682 

.530 

.375 

.223 

.129 

. 060 

.022 

.973 

.924 

.844 

. 721 

.573 

.397 

.269 

.157 

.078 

.033 

.978 

.941 

.870 

. 766 

.620 

.496 

.369 

.259 

.173 

.110 

.061 

.029 

.984 

. 954 

. 901 

.812 

. 725 

.625 

. 529 

.442 

.364 

.285 

.210 

.136 

.086 

.046 
28 

r/a 

0.05 

.10 

.15 

.20 

.25 

.30 

. 35 

.40 

.45 

0.05 

.10 

.15 

Tt 

;:28 

1. 3,1 

1.0,1 

7.5,0 

5.6,0 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

3.2,0 

2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5, -1 

5.6, -1 

1. 8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 

1. 3, 0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

1. 0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2, -I 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

2.4, 1 1. 8, 1 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3, 0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-i; II r/a 

8o=l35°; !=0.05 8o 

[PI. 71] 

0.989 0.45 

.987 

.984 

.981 

.988 .50 

.983 

.978 

.973 

.967 

.985 

.978 

.970 

.962 

.952 

.943 

.989 .60 

.980 

.969 

.956 

.945 

.933 

. 919 

.981 

.966 

.952 

.937 

.921 

.905 

.888 

. 70 . 978 

. 96/i 

.947 

.928 

.908 

.890 

.869 

.989 

.978 

.961 

.940 

.917 

.895 

.872 

.848 

.819 

.80 

.988 

.974 

.955 

.931 

.907 

.879 

.852 

.820 

. 794 

.985 

.969 

.947 

.922 

.893 

.862 

8 8o= 135°; 00=0.10 

[Pl. 72] 

0.987 0.15 

.983 

.979 

.975 .20 

.969 

.963 

.984 

.976 

.966 

.956 

.947 

.936 

.923 .25 

.984 

.971 

.957 

.941 

.924 

. 905 

1-~ Bo 

1.3, -1 0.826 

1.0, -1 . 796 

7.5, -2 . 763 

5.6, -2 . 726 

5.6, -1 .980 

4.2, -1 .962 

3.2, -1 .940 

2.4, -1 .911 

1.8, -1 .878 

1.3, -1 .838 

1.0, -1 .804 

7.5,-2 . 766 5.6,-2 . 727 

4.2, -2 . 685 

3.2, -2 .642 

2.4,-2 . 592 

4.2, -1 . 984 

3.2, -1 . 970 

2.4, -1 . 947 

1.8, -1 . 919 

1.3, -1 .879 

1.0, -1 .842 

7.5,-2 . 796 

5.6, -2 . 747 

4.2, -2 . 696 

3.2,-2 .647 

2.4, -2 .593 

1. 8, -2 . 536 

1. 3,-2 .466 1. 0, -2 .406 

3.2,-1 . 988 

2.4, -1 . 975 

1. 8,-1 .956 

1. 3, -1 .927 

1.0, -1 . 896 

7.5,-2 . 856 

5.6,-2 .806 4.2, -2 . 749 

3.2,-2 . 689 

2. 4,-2 .621 

1. 8,-2 . 551 

1. 3,-2 . 472 

1. 0, -2 . 408 

7.5, -3 .338 

5.6,-3 .267 

4.2,-3 .200 

3.2, -3 .142 

1.8, -1 .981 

1. 3, -1 .965 1.0, -1 .946 

7.5,-2 .920 

5.6,-2 .885 

4.2,-2 .841 

3.2,-2 . 789 

2.4,-2 . 722 

1.8, -2 . 645 

1.3, -2 .546 

1.0, -2 .462 

7.5,-3 .371 

5.6,-3 .283 4.2,-3 .206 3.2,-3 .144 

2.4,-3 .090 

1.8,-3 .050 

1. 0,0 0.888 

7.5, -1 .866 

4.2,0 .989 

3.2,0 .978 

2.4,0 960 

1.8,0 .938 1.3,0 .912 

1.0,0 .891 

7.5,-1 .867 

5.6,-1 .841 

4.2,-1 .812 

2.4,0 .981 

1.8,0 .962 

1.3, 0 .933 

1.0,0 .906 

7.5, -1 .875 

5.6, -1 .844 

4.2,-1 .813 

3.2, -1 . 781 

r/a 

0.30 

.35 

.40 

.45 

.50 

0.05 

.10 

.15 

.20 

Tt 

;:28 

1.8,0 

1.3, 0 

1. 0, 0 

7.5,-1 

5.6,-1 

4.2, -1 3.2, -1 2.4,-1 

1.8, -1 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 7.5, -2 

1. 0, 0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3,-1 

1.0, -1 7.5, -2 5.6,-2 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 

3.2,1 

2.4,1 

1. 8,1 

1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

1. 3, 1 1. 0, l 7. 5,0 

5.6,0 

4.2,0 

3.2,0 

2.4:,0 

1. 8,0 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 

1-~ Bo r/a 

8 8o=l35°; 00=0.19-Continued 

0.981 0.50 

.958 

.931 

.895 

.857 

.819 

. 783 .60 . 744 

. 702 

.977 

.956 

.923 

.881 

.837 

. 794 

. 749 

. 704 

.650 

.990 

.975 

.949 . 70 

.911 

.865 

.817 

. 764 

. 711 

.652 

.604 

.547 

.988 

.970 

.939 

.896 

.847 

. 790 

. 730 .80 .663 

.608 

. 549 

.486 

.984 

.961 

.926 

.881 

.825 

. 761 

.685 

.623 

8o= 135°; !=o.t5 8o 

[Pl. 73] 

0.987 0.25 

.981 

.976 

.969 

.963 

.955 

.945 

.934 

.987 

.977 

.964 .30 

.950 

.936 

.922 

.905 

.886 

.989 

.976 

.957 

.936 

.913 .35 

.889 

.861 

.836 

.804 

.984 

.967 

.941 

.910 

.871 

.840 

.806 .40 . 768 

. 726 

Tt 

fi8 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

5.6,-1 

4.2, -1 3.2,-1 

2.4, -1 1.8,-1 

1.3, -1 1.0,-1 

7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 1.8,-2 

1.3,-2 

1.0, -2 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1. 8, -2 1.3,-2 

1.0, -2 7.5,-3 

5.6,-3 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2, -2 3.2,-2 

2.4,-2 

1.8,-2 

1.3, -2 1. 0,-2 

7.5,-3 

5.6,-3 

3.2,0 

2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 

2.4:,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2.4, -1 1.8, -1 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4:,-1 

1.8, -1 1.3, -1 1.0, -1 

1.3,0 

1.0,0 

7.5, -1 

1-~ 80 

0.556 

.488 

.421 

.356 

.287 

.988 

.969 

.940 

.896 

.841 

. 764 

.694 

.611 

.524 

.440 

.365 

.289 

.219 

.148 

.099 

.976 

.951 

.913 

.857 

. 799 

. 723 

.632 

.534 

.437 

.335 

.243 

.156 

.102 

.057 

.0'1:1 

.982 

.963 

.930 

.895 

.845 

. 781 

. 702 

.614 

.508 

.395 

.270 

.180 

.101 

.047 

0.989 

.972 

.944 

.901 

.862 

.817 

. 772 

. 727 

.682 

.629 

.990 

.973 

.938 

.898 

.847 

. 791 

. 736 

.685 

.630 

.572 

.989 

.967 

.935 

.887 

.826 

. 762 

. 701 

.637 

.574 

.502 

.441 

.985 

.964 

.925 
r/a 

0.40 5.6, -1 

4.2,-1 

3.2, -1 

2.4,-1 

1.8, -1 

1.3, -1 

1.0, -1 

7.5,-2 

.45 1. 0,0 

7.5, -1 

5.6, -1 

4.2,-1 

3.2,-1 

2.4, -1 

1.8, -1 

1.3, -1 

1.0, -1 

7.5,-2 

5.6, -2 

4.2,-2 

.50 7.5,-1 

5.6,-1 

4.2, -1 

3.2,-1 

2.4,-1 

1.8, -1 

1.3, -1 

1.0, -1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

.60 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

0. 05 4.2,1 

3.2,1 

2.4,1 

1.8,1 

1.3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

.10 1.3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

.15 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0, 0 

7.5, -1 

.20 4.2,0 

3.2,0 

2.4, 0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

.25 

4.2, -1 

3.2,0 

2.4,0 

1.8, 0 

1.3, 0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

-~ II r/a 

0.869 0.60 

.802 

. 733 

.658 

.585 

.505 

.442 

.372 

.982 

.955 

. 910 . 70 

.848 

. 777 

.695 

. 611 

.519 

.448 

.374 

.302 

. 232 

.976 

.943 

.891 

.826 .80 . 745 

.655 

.550 

.468 

.384 

.305 

.233 

.171 

.114 

. 982 

.955 

. 912 

.848 

6 6o=l35°; 80=0.20 

[Pl. 74] 

0.989 0.25 

.983 

.976 .30 .968 

.960 

.952 

.942 

.929 

.915 

.983 

.970 

.953 

.935 .35 

.917 

.899 

.878 

.853 

.820 

.986 

.969 

.945 

.918 

.887 .40 .856 

.820 

. 788 

. 748 

.979 

.957 

.924 

.883 

.834 

. 794 

. 749 .45 . 701 

. 648 

.985 

.963 

.927 

.872 

.821 

. 764 

. 707 

.650 

1-.!. Bo 

1.8,-1 0. 768 

1.3, -1 .661 

1.0,-1 .566 

7.5,-2 .458 

5.6,-2 .351 

4.2,-2 .257 

3.2,-2 .181 

2.4,-2 .117 

1.8,-2 .069 

1.3,-2 .032 

4.2, -1 .986 

3.2, -1 .965 2.4,-1 .928 1.8,-1 .873 

1.3,-1 . 792 

1.0, -1 .712 

7.5,-2 .609 5.6,-2 .494 

4.2,-2 .376 

3.2,-2 . 270 

2.4,-2 .172 

1. 8, -2 .096 

1. 3, -2 . 041 

3.2,-1 .990 2.4, -1 .973 

1.8,-1 .945 

1.3, -1 .899 

1.0, -1 .849 

7.5,-2 . 780 

5.6,-2 .694 

4.2,-2 .596 

3.2,-2 .493 

2.4,-2 .379 

1.8,-2 .27L 

1. 3, -2 .166 

1. 0, -2 .100 

7.5,-3 .051 

5.6,-3 .021 

3.2,-1 0.593 

2.4, -1 .529 

2.4,0 .987 

1.8,0 .964 1.3,0 .919 

1.0,0 .868 7.5,-1 .802 5.6,-1 . 731 

4.2, -1 .662 

3.2, -1 .598 

2.4,-1 .530 1,8, -1 .460 

1.8, 0 .986 

1. 3, 0 .957 

1.0,0 .916 

7.5, -1 .853 5.6, -1 . 776 

4. 2, -1 .694 

3.2,-1 .617 

2.4,-1 . 538 

1.8, -1 .463 

1.3, -1 .380 1.0, -1 .313 

1.3, 0 .981 

1.0, 0 .953 

7.5,-1 .903 

5.6,-1 .831 

4.2,-1 . 745 

3.2,-1 .657 

2.4,-1 .564 

1.8, -1 .476 

1.3,-1 .384 

1.0, -1 .314 

7.5,-2 .242 

1.0,0 .977 

7.5,-1 .942 

5.6, -1 . 883 4.2,-1 .803 

3.2,-1 . 714 

2.4, -1 .611 

1.8, -1 .508 

1.3, -1 .400 

1. 0, -1 .321 

7.5,-2 .245 5.6,-2 .176 

4.2,-2 .117 

TABLEtS 

r/a -~ II r/a 

6 6o=135°; 80=0.20-Continued 

0.50 7.5,-1 0.969 0.70 

5.6,-1 .926 

4.2,-1 .859 3.2,-1 . 776 

2.4,-1 .673 

1.8, -1 .562 

1.3, -1 .437 

1.0,-1 .344 7.5,-2 .255 5.6,-2 .179 

4.2, -2 ·.118 

3.2,-2 .073 

2.4,-2 .038 .80 

.60 5.6,-1 .977 

4.2,-1 .941 

3.2,-1 .886 2.4,-1 .805 1.8,-1 • 704 

1.3,-1 .573 

1.0, -1 .461 

7.5,-2 .341 

5.6,-2 .232 

4. 2,-2 .144 

3.2,-2 .083 2.4,-2 .041 

[Pl. 75] 

0. 05 4.2,1 0.987 0.35 

3.2, 1 .979 

2.4,1 .971 

1.8, 1 .962 

1.3,1 .951 

1. 0,1 .942 7.5,0 .930 

5.6,0 .915 

4.2,0 .898 

.10 1.3, 1 .979 

1.0,1 .964 .40 7.5,0 .944 5.6,0 .922 4.2,0 .900 

3.2,0 .878 

2.4,0 .853 1.8,0 .823 

1.3,0 . 784 

.15 7.5,0 .983 5.6,0 .963 

4.2,0 .934 

3.2,0 .901 .45 

2.4,0 .864 1.8, 0 .827 

1.3,0 . 784 

1.0,0 . 746 

7.5, -1 .698 

. 20 4.2,0 .975 

3.2,0 .949 

2.4,0 .909 1.8,0 .859 1.3,0 .800 1. 0,0 . 753 

7.5,-1 . 700 .50 

5.6,-1 .643 

4.2, -1 .581 

.25 3.2,0 .982 

2.4, 0 .956 

1.8,0 .913 

1.3,0 .846 

1. 0, 0 . 785 

7.5,-1 .717 

5.6,-1 .650 

4.2, -1 .583 

3.2,-1 .518 

2.4,-1 .445 

.60 

.30 2.4, 0 .984 

1.8,0 .957 

1.3,0 .903 

1.0,0 .841 

7.5,-1 • 762 

5.6,-1 .678 

4.2,-1 .597 

3.2,-1 .523 2.4, -1 .446 

1.8, -1 .370 

4.2,-1 

3.2,-1 

2. 4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 

1.8, -2 

3.2,-1 

2.4,-1 

1.8, -1 

1.3, -1 

1. 0, -1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1. 0,-2 

7.5,-3 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 

4. 2,-1 

3. 2,-1 

2.4,-1 

1.8, -1 

1.3,-1 

1.0, -1 

1.3,0 

1.0,0 

. 7.5, -1 

5.6,-1 

4.2, -1 

3.2,-1 

2. 4, -1 

1.8, -1 

1.3,-1 

1. 0,-1 

7.5,-2 

1. 0, 0 

7.5,-1 

5.6,-1 

4.2, -1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2. 4, -1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

5.6,-1 

4.2, -1 

3.2, -1 

2.4, -1 

1. 8, -1 

1.3,-1 

1.0, -1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

29 

1-~ Bo 

0.981 

.955 

.906 

.837 

. 736 

.639 

.520 

.395 

.276 

.178 

.098 

.045 

.986 

.965 

.929 

.870 

.808 

• 726 

.629 

.524 

.422 

.319 

.226 

.140 

.088 

.046 

0.983 

.948 

.899 

.824 

.732 

.635 

.545 

.456 

.373 

.285 

.218 

.977 

.944 

.884 

.797 

.695 

.592 

.485 

.387 

.289 

.220 

.153 

.973 

.931 

.860 

• 764 

.658 

.539 

.424 

.307 

.227 

.155 

.098 

.055 

.988 

.963 

.911 

.831 

. 732 

.611 

.485 

.348 

.252 

.167 

.101 

.056 

.028 

.972 

.929 

.863 

• 767 

.649 

.501 

.381 

.259 

.156 

.083 

.039 
30 

r/a 

0. 70 

0.05 

.10 

.15 

.20 

. 25 

.30 

.35 

.40 

Tt 

;:28 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0,-1 

7.5,-2 

5.6, -2 3.2,-2 

4.2,-2 

2.4,-2 

1. 8, -2 

4.2,1 

3.2, 1 2.4, 1 1.8,1 

1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 

3.2,0 

2.4,0 

1. 8, 0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2, -1 2.4, -1 

2. 4, 0 

1.8,0 

1.3,0 

1. 0, 0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2. 4,-1 

1.8, -1 1.3, -1 

1.8,0 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 1.0,-1 

1.3,0 

1.0,0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-~ II r/a 

8o=l35°; £,=0.25--Continued 

0.978 0.80 

.945 

.888 

.806 

.688 

.580 

.455 

.330 

.220 

.136 

. 072 

.032 

8 8o=135°; 60=0.30 

[Pl. 76] 

0.985 0.40 

.976 

.966 

.956 

.944 

.934 

.920 

.903 

.883 

.976 .45 .959 

.936 

.911 

.886 

.861 

.832 

. 798 

. 753 

.980 

.957 

.924 

.887 

.845 

.803 .50 . 754 

.710 

.656 

.990 

.972 

.941 

.895 

.839 

. 772 

.718 

.658 

.595 .60 .526 

.980 

.949 

.900 

.824 

. 755 

.678 

.602 

.528 

.456 

.378 . 70 

.982 

. 951 

.889 

.819 

. 729 

.634 

.543 

.462 

.379 

.299 

. 214 

.981 .so .941 

.885 

. 799 

. 694 

. 585 

. 486 

.390 

.302 

. 214 

.152 

.973 

.936 

1-~ 80 

3.2,-1 0.984 

2.4,-1 .958 

1.8, -1 .915 

1.3, -1 .845 1.0, -1 . 774 

7.5,-2 .684 

5.6,-2 .584 4.2,-2 .482 

3.2,-2 .387 

2.4, -2 .295 

1. 8, -2 .214 

1.3, -2 .136 

1.0, -2 .086 7.5,-3 • 046 

7.5, -1 0.867 

5.6,-1 . 768 

4.2, -1 .653 

3.2,-1 .538 2. 4,-1 .422 

1.8, -1 .318 

1.3, -1 .219 

1. 0,-1 .154 

7.5, -2 .096 

1.3,0 .990 1.0,0 .969 

7.5, -1 . 921 

5.6, -1 .840 

4.2, -1 . 731 

3.2,-1 .612 

2.4,-1 .481 

1.8, -1 .357 

1.3,-1 • 238 1.0, -1 .162 

7.5,-2 .098 5.6,-2 .053 4.2,-2 .025 

1.0,0 .986 7.5, -1 .957 

5.6,-1 .898 4. 2, -1 .807 

3.2,-1 .695 

2.4, -1 .561 

1.8, -1 . 424 1.3, -1 . 282 

1.0, -1 .188 

7.5, -2 .110 

5.6,-2 .057 4. 2,-2 . 026 

5.6, -1 .968 4.2,-1 .919 

3.2,-1 .844 

2.4,-1 . 735 

1.8, -1 .604 

1.3, -1 .446 

1.0, -1 .323 

7.5, -2 . 205 

5.6, -2 .113 

4.2,-2 .053 

3.2,-2 .021 

4.2, -1 .975 

3.2, -1 .938 

2. 4,-1 .872 

1.8, -1 . 780 

1.3, -1 . 651 

1.0,-1 . 536 

7.5,-2 .410 

5.6,-2 .291 

4.2,-2 .192 

3.2, -2 .119 

2.4,-2 .064 

1.8,-2 .029 

3.2, -1 .981 

2.4, -1 .952 

1.8, -1 .904 

1.3,-1 .825 

1. 0,-1 . 748 

7.5,-2 .654 

5.6,-2 .555 

4.2,-2 • 458 

3.2,-2 .372 

2.4, -2 .288 1.8,-2 .211 

1.3, -2 .136 

1.0,-2 .086 

7.5,-3 .046 

r/a 

0.05 4.2, 1 3. 2,1 

2.4, 1 1. 8,1 

1.3, 1 1.0, 1 7.5,0 

5.6,0 

4.2,0 

.10 1. 8,1 

1.3, 1 1.0, 1 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1. 3,0 

.15 7.5,0 

5.6,0 

4.2,0 

3. 2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

.20 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

.25 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2, -1 2.4,-1 

.30 2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3,-1 

.35 1. 8, 0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 

0.05 4.2,1 

3.2,1 

2.4,1 

1. 8,1 

1. 3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3. 2,0 

.10 1. 8,1 

1. 3,1 

·-i. II r/a 

8 8o=135°; 60=0.35 

[Pl. 77] 

0.983 0.40 . 974 

.963 

.952 

.939 

.927 

.912 

.893 

.871 

.989 

.974 

.955 .45 .930 

.902 

.874 

.847 

.815 

. 778 

. 729 

.978 

.953 

.917 

. 875 

.829 .50 . 783 

. 730 

.682 

.623 

.989 

. 969 

.935 

.885 

. 823 

. 749 

.690 .60 

.625 

.556 

.483 

.978 

.944 

.890 

.807 

. 731 

.647 

.564 

.485 . 70 

.409 

.328 

.980 

.946 

.878 

.801 

. 702 

.599 

.501 

.415 

.329 

.248 .80 

.16b 

.979 

.935 

.873 

. 779 

.664 

.546 

. 441 

.340 

. 251 

.166 

.109 

8 8o=l35°; 8;,=0.40 

{PI. 78] 

0.982 0.10 

.972 

.961 

.949 

.935 

.922 

.906 

• 886 

.862 

.836 .15 

.989 

.972 

1-~ so 

1.3,0 0.971 

1.0,0 .929 7.5, -1 .853 

5.6,-1 . 745 

4.2,-1 .620 

3.2, -1 .496 

2.4, -1 .373 

1.8,-1 .267 

1.3, -1 .170 

1.0, -1 .110 

7.5,-2 .062 

1.3,0 .989 1.0,0 .965 7.5, -1 .913 

5.6, -1 .824 

4.2, -1 . 705 

3.2,-1 .576 

2.4,-1 .436 

1.8, -1 .308 1.3, -1 .190 

1.0, -1 .118 7.5,-~ .064 5.6, -~ .030 

1.0,0 .985 

7.5, -1 .953 5.6, -1 .888 4.2,-1 . 788 

3.2, -1 .666 2.4,-1 .522 

1.8,-1 .378 

1.3, -1 .235 

1.0, -1 .145 

7.5,-:0: .075 

5.6, -Z .033 

7.5, -1 .990 5.6, -1 .965 4.2,-1 .911 

3.2, -1 .828 2.4, -1 . 710 

1.8, -1 .570 

1.3, -1 .400 

1.0, -1 .283 

7.5, -Z .172 

5.6,-2 .089 4. 2, -2 .039 

4.2,-1 .972 3. 2, -1 .931 

2.4, -1 .859 

1.8,-1 . 759 

1.3,-1 .622 

1.0, -1 .505 

7.5,-2 .381 

5. 6,-2 .270 

4.2,-2 .179 

3.2, -2 .112 

2.4, -2 .061 

1.8, -2 .029 

3.2, -1 .979 

2.4,-1 .948 

1.8, -1 .894 

1.3, -1 .809 1.0, -1 . 728 

7.5,-2 .633 5.6,-2 .537 

4.2,-2 .447 

3.2,-2 .366 

2.4, -2 .285 

1.8,-2 .210 

1.3, -2 .136 

1.0, -2 .086 7.5, -3 .046 

1.0, 1 0.952 

7.5,0 .925 

5.6,0 .895 

4.2,0 .866 

3.2,0 .837 

2.4,0 .803 

1.8,0 . 764 

1.3,0 . 711 

7.5,0 .977 

5.6,0 .950 

4.2,0 .911 

3.2,0 .867 
r/a 

0.15 

.20 

.25 

.30 

.35 

.40 

0.05 

.10 

.15 

Tt 

;:28 

2.4,0 

1. 8,0 

1.3, 0 

1.0,0 

7.5, -1 

li.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,0 

2.4,0 

1.8,0 

1.3, 0 

1. 0, 0 

7.5,-1 

5.6, -1 4.2, -1 3.2,-1 

2.4, -1 

2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1. 8, -1 1.3, -1 1.0, -1 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4, -1 1..8,-1 

1.3, -1 1.0, -1 7.5, -2 

4. 2,1 

3.2,1 

2.4, 1 1.8, 1 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

1. 8,1 

1. 3,1 

1. 0,1 

7. 5,0 

5.6,0 

4. 2, 0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2. 4,0 

·-~ II r/a 

1Jo=135°; ~=0.4o-Continued 

0. 818 0.45 . 769 

.712 

.661 

.599 

.988 

.967 

.931 

.877 

.811 

. 733 

.670 . 50 

.602 

.529 

.452 

.976 

.941 

.883 

. 794 

.713 

.624 

.537 

.454 .60 

.376 

.293 

. 979 

.943 

.870 

. 787 

.683 

.573 

.471 

.382 

• 294 . 70 . 213 

.134 

.977 

.931 

.864 

. 764 

.643 

. 519 

.408 

.305 

.216 

.134 .80 

.082 

.969 

.925 

.844 

. 729 

.596 

.466 

.340 

.233 

.139 

.083 

.042 

[Pl. 79] 

0. 982 0.15 . 971 

. 959 

. 947 

. 932 

. 919 .20 . 902 

.882 

.857 

.830 

.988 

.971 

.950 

.922 

.891 

.860 .25 .831 

. 795 

. 755 

. 700 

. 976 

.948 

. 907 

.862 

.811 

Tt 

Ti8 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1. 8, -1 1.3, -1 1.0, -1 7.5,-2 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4,-1 

1. 8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1. 8,-1 

1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

4.2,-1 

3.2, -1 2.4,-1 

1. 8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 2.4, -2 1. 8,-2 

3.2, -1 2.4, -1 1. 8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 1. 8, -2 1.3,-2 

1. 0, -2 7.5,-3 

1.8,0 

1.3,0 

1. 0, 0 

7.5, -1 

5.6,0 

4. 2,0 

3.2,0 

2. 4,0 

1.8,0 

1. 3, 0 

1. 0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2, -1 2.4, -1 

TABLES 

1-~ so 

0.988 

.963 

.907 

. 812 

.686 

. 550 

.405 

.275 

.158 

.092 

.044 

.984 

.950 

. 881 

. 774 

.645 

.494 

.346 

.204 

.118 

.056 

.021 

.989 

.962 

.905 

.817 

.691 

.546 

.379 

.259 

.153 

.078 

.033 

.970 

.927 

.850 

. 744 

.602 

.485 

.364 

.258 

.173 

.110 

. 061 

.029 

.978 

.944 

.887 

. 798 

.715 

.620 

.528 

.442 

.364 

285 

.210 

.136 

.086 

.046 

0. 760 

. 701 

. 649 

. 585 

. 988 

. 966 

.928 

.872 

.804 

. 723 

.658 

. 587 

. 512 

. 434 

.975 

.938 

.878 

. 786 

. 702 

.610 

.521 

.436 

.356 

.272 

r/a 

0.30 

.35 

.40 

. 45 

0.05 

.10 

.lli 

. 20 

Tt 

;:28 

2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 

1.8,0 

1.3,0 

1. 0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3,-1 

1. 0,-1 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4. 2,-1 

3.2, -1 2.4, -1 1.8,-1 

1. 3,-1 

1.0, -1 7.5,-2 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

4.2, 1 3.2, 1 2.4, 1 1.8, 1 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1. 3, 0 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0,0 

7.5, -1 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

• :. II r/a 

1Jo=135°; ~=0.45-Continued 

0.978 o. 50 .940 

.865 

. 779 

.671 

. 558 

.453 

.362 

. 274 

.193 

.116 .60 

.976 

.928 

.859 

. 755 

.630 

.502 

.389 

. 285 

.196 

.116 

.068 . 70 

.967 

.922 

.838 

. 719 

. 581 

.448 

.320 

.213 

.121 

.069 

. 032 .80 

.987 

. 962 

.903 

.805 

.675 

.534 

.386 

. 255 

.141 

.077 

.034 

1Jo=l35°; !!=0.50 IJo 

[Pl. 80] 

0.981 0.25 

.971 

. 959 

.946 

.931 

.918 

.901 

.880 

.855 

.828 

.988 .30 

.971 

.949 

.921 

.890 

.859 

.828 

. 793 

. 752 

.696 

.976 

.947 .35 

.906 

.860 

.809 

. 757 

.697 

.645 

. 580 

.987 

.965 

.928 

.871 .40 

.802 

. 719 

.654 

.582 

.507 

.428 

Tt 

;:28 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3,-1 

1.0, -1 7.5,-2 

7.5,-1 

5.6,-1 

4. 2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4. 2,-2 

4. 2,-1 

3.2,-1 

2.4,-.1 

1.8,-1 

1.3, -1 1.0,-1 

7.5,-2 

5.6,-2 

4.2, -·2 3.2,-2 

2.4,-2 

1.8,-2 

3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

7.5,-3 

3.2,0 

2.4,0 

1.8, 0 

1.3,0 

1. 0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 

2.4,0 

1.8,0 

1.3 0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4. 2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

31 

1-~ so 

0.983 

.948 

.876 

. 766 

.632 

.477 

.328 

.187 

.104 

.046 

.989 

.961 

.901 

.810 

. 681 

. 531 

.364 

. 245 

.143 

.072 

.031 

.969 

.924 

.844 

. 735 

.591 

.473 

.355 

.253 

. 171 

.109 

.061 

.029 

977 

.942 

.883 

. 792 

. 707 

.613 

. 523 

.439 

.363 

.285 

.210 

.136 

.086 

.046 

0.975 

.938 

.877 

• 783 

.699 

.606 

.515 

.430 

.349 

.265 

.977 

.940 

.863 

. 777 

.667 

.553 

.447 

.355 

.267 

.187 

.110 

.976 

.927 

.858 

. 752 

.625 

.496 

.383 

.278 

.190 

.111 

.063 

.967 

.921 

.836 

. 715 

.576 

.443 

.313 
32 

Tt 

;:28 r/a 

0.40 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

.45 1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

.50 1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 

.60 7.5,0 

5.6,0 

4.2,0 

3. 2, 0 

2.4,0 

0.05 1.8, 1 1.3, 1 1.0, 1 7.5,0 

5.6,0 

.10 1.0, 1 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

.15 5.6,0 

4.2, 0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

.20 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

.25 2.4,0 

1.8,0 

1.3,0 

1.0, 0 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

.30 1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

.35 1. 3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1. 8,-1 

1.3, -1 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPE-D AQUIFERS DRAINED BY STREAMS 

1-!. 

II r/a Tt 1-!. 

•o ;:28 •o 

8 8o= 135°; 9o =0.50-Continued 

o. 206 0.60 1.8, 0 0.527 

.116 1.3,0 .359 

.065 1.0,0 .241 

.029 7.5,-2 .140 

5.6,-2 .070 

.987 4.2,-2 .030 . 961 . 70 4.2,-1 .969 .902 

.803 3.2,-1 .923 

.671 2.4,-1 .843 

.529 1.8, -1 . 732 

.380 1.3, -1 . 587 

.249 1.0, -1 .470 

.135 7.5,-2 .352 

.073 5.6,-2 .251 

. 031 4.2,-2 .170 

3.2, -2 .109 

.983 2.4,-2 .061 

.947 1.8,-2 .029 

.874 .80 3.2, -1 .977 . 763 2.4,-1 .941 

.628 1.8, -1 .882 

.472 1.3,-1 . 789 

.322 1.0, -1 . 705 

.182 7.5, -2 .611 

.100 5.6, -2 . 522 

.043 4.2, -2 .439 

3.2,-2 .363 

.989 2.4,-2 . 285 .960 1. 8, -2 . 210 

.900 1.3,-2 .136 

.808 1.0, -2 . 086 .677 7.5,-3 .046 

8 8o= 150°; Bo =0.05 

[Pl. 81] 

0.988 0.40 1.0,0 0.984 

.985 7.5,-1 .968 

.982 5.6, -1 .946 .979 4.2,-1 .921 

.975 3.2,-1 .894 

2.4,-1 .864 

.989 1. 8,-1 .835 .983 1.3, -1 .800 

.977 1.0, -1 . 771 

.971 

.966 .45 7.5,-1 .980 

.959 5.6,-1 .962 4. 2,-1 .938 

.988 3.2,-1 .911 

.980 2. 4, -1 . 879 

.972 1.8, -1 .845 .962 1.3, -1 .806 .953 1.0, -1 . 774 

.942 7.5,-2 . 737 

.932 5. 6,-2 .697 

.985 .50 7.5, -1 .989 

.974 5.6,-1 .976 

.961 4.2,-1 .955 

.946 3.2, -1 .931 

934 2.4,-1 .899 

.921 1.8, -1 .863 .907 1.3, -1 .819 

1.0, -1 . 783 

.987 7.5,-2 . 741 

.975 5.6,-2 .698 

.958 4.2,-2 .653 .943 3.2,-2 .606 

.925 2.4,-2 .551 

.908 

.891 .60 4.2, -1 .981 

.873 3.2,-1 .964 2.4,-1 .940 .987 1.8, -1 .909 

.973 1.3,-1 .865 .957 1.0, -1 . 824 

.937 7.5,-2 . 774 

.916 5.6,-2 . 720 

.895 4.2,-2 .665 .875 3.2,-2 .611 

.853 2.4,-2 .553 

1.8, -2 .492 

.985 1.3,-2 .418 

.972 1.0, -2 .356 

.953 

• 930 . 70 3.2, -1 . 985 

.905 2.4,-1 . 971 . 881 1.8, -1 .950 

.856 1.3, -1 .918 .830 1.0, -1 .885 . 799 7.5, -2 .840 

r/a Tt 

;:28 

0. 70 5.6, -2 4.2, -2 3.2, -2 2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

7.5,-3 

5.6,-3 

4.2,-3 

3.2,-3 

.80 2.4,-1 

1.8, -1 1.3, -1 

0.05 3.2,1 

2.4, 1 1.8, 1 1.3, 1 1.0, 1 7.5,0 

5.6,0 

4.2,0 

. 10 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

.15 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

. 20 4.2,0 

3.2,0 

2.4,0 

1,8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4. 2,-1 

.25 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2, -1 

.30 2.4,0 

1.8,0 

1.3,0 

1.0,0 

7. 5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

.35 1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 

. 40 1.3,0 

1.0, 0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4,-1 

1-!. II r/a •o 

8o= 150°; Fo =0.05-Continued 

0. 785 0.80 • 722 

.657 

.584 

.509 

.425 

.358 

.287 

.217 

.154 

.103 

.989 

.978 

.960 

8o=150°; !!.=0.10 8o 

[Pl. 82] 

0.986 0.40 

.981 

.976 

. 970 

965 .45 959 

.951 

.942 

.986 

.978 

.966 

.955 

.943 

.932 

.919 

.905 .50 

.989 

.977 

.961 

.944 

.925 

.907 

.886 

.867 

.843 

.984 

.970 

.948 

. 923 .60 

.894 

.870 

.844 

.816 

. 785 

.989 

.974 

.951 

.917 

.887 

.853 

.820 

. 786 

. 753 . 70 .990 

.975 

.946 

.915 

.876 

.834 

. 794 

. 755 

. 714 

.669 

.989 

.970 

.944 

.907 

.861 .80 

.813 

. 767 

. 719 

.671 

.613 

.986 

.968 

.937 

.894 

.844 

. 792 

. 735 

Tt 1-!. ;:28 so 

1.0,-1 0.940 

7.5, -2 .911 

5.6,-2 .873 

4.2, -2 .824 

3.2,-2 . 767 2.4,-2 .695 

1.8, -2 .611 

1.3,-2 .505 

1.0,-2 .417 

7.5,-3 .322 

5.6,-3 .234 

4.2,-3 .161 

3.2,-3 .105 

2.4,-3 .060 

1. 8,-3 .030 

1.8, -1 0.679 

1.3, -1 .616 

1. 0,-1 .564 

7.5,-2 .504 

1.0,0 .984 

7.5,-1 . 961 

5.6,-1 .926 

4.2, -1 .879 

3.2,-1 .826 

2.4,-1 . 764 

1.8, -1 . 700 

1.3,-1 .627 

1.0, -1 .569 

7.5,-2 .506 

5.6, -2 • 440 

7.5, -1 .978 

5.6, -1 .952 

4.2, -1 .912 

3.2,-1 .863 2.4,-1 .802 

1.8, -1 . 734 

1.3, -1 .652 

1. 0,-1 .585 7.5, -2 .514 

5.6,-2 .442 

4.2,-2 .373 

3.2,-2 .306 

2.4, -2 .237 

5.6, -1 .984 

4.2, -1 .962 

3.2,-1 • 929 

2.4,-1 .882 

1.8, -1 .821 

1.3, -1 . 739 

1.0, -1 .663 

7.5,-2 .574 

5.6,-2 .481 

4.2, -2 .393 

3.2,-2 .315 

2.4,-2 .240 

1.8, -2 .173 

1.3,-2 .109 

1.0,-2 .067 

4. 2,-1 . 987 

3.2,-1 .971 

2.4,-1 .942 

1.8, -1 .902 1.3, -1 .840 

1.0, -1 . 778 

7.5, -2 .695 

5.6,-2 .598 4.2,-2 .494 

3.2,-2 .392 

2. 4,-2 .289 

1.8,-2 .198 

1.3,-2 .117 

1.0,-2 .070 

7.5,-3 .035 

2.4, -1 .978 

1.8, -1 .957 

1.3, -1 .922 

1.0, -1 .884 7.5,-2 .829 

5.6,-2 . 760 

4.2,-2 .675 

3.2,-2 .582 

2.4, -2 .472 

1.8,-2 .358 

1.3,-2 .235 

1.0,-2 .150 

7.5,-3 .080 

5.6 -3 .035 
r/a 

0.05 4. 2,1 

3.2, 1 2.4,1 

1. 8,1 

1.3, 1 1.0, 1 7.5,0 

5.6,0 

4.2,0 

1.3,1 

.10 1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1. 8, 0 

.15 7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

. 20 4. 2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

.25 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 

.30 2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 

.35 1.8,0 

1.3,0 

1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0,-1 

.40 1.3,0 

1.0,0 

7.5, -1 5.6, -1 

0.05 4.2, 1 3.2,1 

2.4,1 

1. 8,1 

1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

.10 1.8, 1 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

1

_!_ lo II r/a 

9 Oo=150°; eo=O.l5 

[Pl. 83] 

0. 987 0.40 

.980 

.972 

.965 

.957 

. 949 

.940 

.928 .45 . 915 

.980 

.967 

.951 

.933 

. 917 

.900 

.882 

.860 

.983 

.966 .50 

.943 

.918 

.890 

.863 

.832 

.805 

. 771 

.977 

.955 

.924 

.887 

.844 

.810 

. 773 .60 . 732 

.688 

.983 

. 961 

.928 

.878 

.834 

. 785 

. 737 

.690 

.642 

.587 . 70 

.985 

. 963 

.921 

.875 

.818 

. 758 

. 700 

.646 

.588 

.528 

. 984 

.956 

.919 .80 .863 

. 797 

. 728 

.663 

.596 

.530 

.456 

.393 

.979 

. 953 

.908 

.845 

Oo=150°; ~ =0.20 9o 

[Pl. 84) 

0.983 0.10 

.974 

.964 

.955 

.944 

.934 .15 .922 

.907 

.890 

.989 

.974 

.958 

.936 

.914 

TABLES 

1-~ so 

4.2, -1 0. 772 

3.2, -1 .698 

2.4, -1 .619 

1.8, -1 .542 

1.3, -1 .459 

1.0, -1 .394 

7.5, -2 .324 

1.0,0 .976 

7.5, -1 .943 

5.6,-1 .891 

4.2, -1 .823 

3.2, -1 . 747 

2.4, -1 .659 

1.8, -1 .571 

1.3, -1 .474 

1.0, -1 .401 

7.5, -2 .326 

5.6, -2 .253 

4.2, -2 .187 

1.0,0 .989 

7.5, -1 .968 

5.6, -1 .929 

4.2, -1 .871 

3.2, -1 .801 

2.4, -1 .713 

1.8, -1 .618 

1.3, -1 .507 

1.0, -1 .422 

7.5, -2 .335 

5.6,-2 . 257 

4.2, -2 .187 

3.2,-2 .130 

2.4, -2 .081 

5.6, -1 .976 

4.2, -1 .944 

3.2, -1 .896 

2.4, -1 .827 

1.8, -1 . 741 

1.3, -1 .627 

1.0, -1 .527 

7.5, -2 .414 

5.6, -2 .306 

4.2,-2 . 212 3.2, -2 .141 

2.4, -2 .084 

1.8, -2 .044 

4.2, -1 .981 

3.2, -1 .957 

2.4, -1 . 915 

1.8,-1 .857 

1.3, -1 . 770 

1.0,-1 .685 

7.5,-2 .577 

5.6, -2 .457 

4.2, -2 .337 

3.2, -2 .232 

2. 4,-2 .139 

1.8, -2 .072 

1.3, -2 .027 

3.2, -1 . 986 

2.4, -1 .967 

1.8, -1 .937 

1.3, -1 .887 

1.0,-1 .833 7.5, -2 . 760 

5.6,-2 .670 

4.2, -2 .568 3.2, -2 .464 

2.4,-2 .353 

1.8,-2 .250 

1.3, -2 .152 

1.0, -2 . 093 

7.5, -3 .048 

4.2,0 0.892 

3.2,0 . 871 

2.4,0 .847 

1.8,0 .820 

1.3,0 . 783 

7.5,0 .979 

5.6,0 • 956 4.2,0 .926 

3.2,0 .894 

2.4,0 .858 

1.8,0 .824 

1.3,0 . 784 

1. 0, 0 . 749 

7.5,-1 • 706 

r/a 

0.20 

.25 

.30 

.35 

.40 

.45 

0.05 

.10 

.15 

Tt 

riB 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2, -1 2.4, -1 

2.4,0 

1.8,0 

1. 3, 0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

1.8, 0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 1.3,-1 

1.0, -1 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

5. 6,1 

4.2, 1 3.2,1 

2.4,1 

1.8, 1 1.3, 1 1.0, 1 7.5,0 

5.6,0 

4. 2,0 

1.8, 1 1. 3,1 

1. 0,1 

7.5,0 

5. 6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1. 3, 0 

1.0, 1 7.5,0 

5.6,0 

4.2,0 

3.2,0 

0.988 

.970 

.942 

.902 

.854 

• 799 

• 755 

.708 

.657 

.602 

.978 

.950 

.906 

.843 

. 786 

. 724 

.663 

.604 

.546 

.480 

.981 

.952 

.897 

.839 

. 766 

.689 

. 617 

.550 

.481 

.411 

.980 

.943 

.895 

.824 

. 739 

.652 

.571 

.490 

.414 

.330 

.265 

.973 

.939 

.881 

.800 

. 707 

.614 

.518 

.428 

.335 

.266 

.197 

.989 

.969 

.927 

.859 

. 772 

[Pl. 85] 

0.988 

.979 

.969 

. 957 

.946 

.932 

.921 

.906 

.888 

.868 

.987 

.969 

.949 

.923 

.896 

.870 

.845 

.817 

. 784 

. 740 

.990 

.974 

.947 

.911 

.872 

33 

r/a 1-~ 80 

0.45 3.2,-1 0.676 

2.4, -1 .568 

1.8,--1 .462 

1.3, -1 .352 

1.0,-1 .274 

7.5,-2 .200 5. 6,--2 .136 

4.2,-2 .085 

.50 1.0,0 .986 

7.5,-·1 .959 

5.6,-1 .908 

4.2,-1 .834 3.2,-1 • 744 

2.4, -1 .635 1.8, -1 .519 

1.3,-1 .391 

1. 0,-1 .298 

7.5,-2 .211 

5.6,-2 .139 

4.2,-2 .085 3.2,-2 .048 

.60 5.6, -1 .969 4.2, -1 .927 

3.2,-1 .866 2.4, -1 • 779 

1.8,-1 . 672 

1.3,-1 .535 1.0,-1 .420 

7.5,-2 .300 5.6,-2 .193 

4.2,-2 .112 

3.2,-2 .059 

2.4,-2 .026 

. 70 4.2,-1 .976 

3.2,-1 .944 

2.4, -·1 .891 

1.8, -·1 .817 

1.3, -1 .710 

1.0, -1 .609 7.5,-2 .488 

5.6,-2 .362 

4.2,-·2 .247 

3.2,--2 .155 

2.4,-2 .083 1.8, -2 .037 

.80 3.2, -1 .982 

2.4,-1 .958 

1.8,--1 .919 

1.3,-1 .856 

1.0,-1 • 790 

7.5,-·2 • 705 

5.6,-·2 .606 

4.2,--2 .502 

3.2,-2 .403 2.4, -2 .305 

1.8,-2 .218 

1.3, -2 .137 

1.0,--2 .087 

7.5,-·3 .046 

0.15 2.4,0 0.830 

1.8,0 • 788 

1.3,0 • 741 

1.0,0 . 700 

7.5, -1 .649 

.20 5.6,0 .986 4.2,0 .964 

3.2,0 .931 

2.4,0 .882 

1.8,0 .825 

1.3,0 . 759 

1.0,0 . 707 

7.5,-1 .651 

5.6,-1 .592 4. 2,-1 .529 

.25 3.2,0 .974 

2.4,0 .940 

1.8,0 .887 

1.3,0 .811 

1.0,0 . 744 

7.5,-1 .670 

5. 6, -1 .599 

4.2, -1 .531 3. 2,-1 .465 

2.4,-1 .393 
34 

r/a 

0.30 2.4,0 

1.8,0 

1.3,0 

1. 0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

.35 1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

.40 1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4. 2,-1 

3.2,-1 

2. 4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 

. 45 1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

0.05 5.6,1 

4.2,1 

3.2, 1 2.4,1 

1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

. 10 1. 8,1 

1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1. 8,0 

1.3,0 

.15 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1.3, 0 

1.0,0 

7.5, -1 

.20 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1. 3, 0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPE·D AQUIFERS DRAINED BY STREAMS 

·-i; II r/a 

Oo==l50°; ~==0.25-Continued 

0. 977 0. 50 

.942 

.877 

.807 

. 720 

.630 

. 545 

.470 

.394 

.319 

. 976 

. 932 .60 .873 

. 788 

.688 

. 586 

.494 

.404 

.322 

. 238 

.176 

.117 

.069 

.036 . 70 . 967 

. 927 

.857 

. 761 

. 651 

.544 

.435 

.337 

.242 

.177 

.117 

. 986 .so . 962 

. 912 

.831 

. 727 

.615 

.492 

.375 

. 261 

.185 

.119 

.070 

. 036 

8o==150°; !=0.30 fJo 

[Pl.86] 

0.987 0.20 

.976 

.964 

.951 

.938 

.923 . 25 .909 

.892 

. 872 

. 849 

.823 

.985 

. 965 

. 942 

.912 

.881 

.852 .30 

.823 

. 791 

. 753 

. 704 

.989 

.971 

.940 

.899 

• 854 

.805 

. 758 .35 . 705 

.659 

.602 

.984 

.959 

. 921 

.865 

.800 

. 725 

1.0,0 

7. 5,-1 

5.6,-1 

4.-2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4. 2,-2 

7.5, -1 5.6,-1 

4. 2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4.2,-2 

3.2, -2 

4.2, -1 3.2, -1 2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4. 2,-2 

3.2, -2 2.4,-2 

1.8,-2 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0,-1 

7.5, -2 5.6,-2 

4. 2,-2 

3.2,-2 

2.4,-2 

1.8, -2 1.3,-2 

1.0, -2 7.5,-3 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4. 2, -1 3.2,-1 

2.4,-1 

2.4,0 

1. 8,0 

1. 3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 

1. 8,0 

1.3,0 

1.0,0 

7.5, -1 5.6. -1 4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1. 3, -1 1. 0,-1 

1-! so 

0.983 

. 951 

.890 

.801 

. 695 

. 569 

. 440 

.304 

.211 

.131 

. 073 

.037 

.988 

.963 

. 913 

.839 

. 737 

. 614 

.463 

. 343 

. 225 

.129 

.063 

.027 

.971 

.933 

.869 

. 783 

. 661 

. 551 

.427 

.306 

. 202 

.124 

.066 

.030 

.979 

.949 

.908 

.829 

. 756 

.665 

. 566 

.467 

. 377 

.290 

. 212 

.136 

.086 

.046 

0.667 

.604 

.539 

.470 

.990 

.970 

.931 

.871 

. 784 

. 708 

.625 

.546 

.471 

.401 

.325 

.973 

.934 

.859 

. 779 

.681 

.580 

.487 

.406 

.326 

.250 

.172 

.972 

.922 

.855 

. 759 

.646 

.532 

.432 

.337 

.253 

.172 

.117 

r/a 

0.40 1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

.45 1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

.50 1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

.60 7.5, -1 5.6, -1 

0.05 5.6, 1 4. 2,1 

3.2,1 

2. 4,1 

1. 8,1 

1. 3,1 

1. 0,1 

7. 5,0 

5.6,0 

4.2,0 

3.2,0 

.10 1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1.8, 0 

1.3,0 

.15 1. 0,1 

7. 5,0 

5. 6, 0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

1.3,0 

1.0,0 

7. 5,-1 

. 20 5.6,0 

4.2,0 

3. 2,0 

2. 4,0 

1.8,0 

1.3,0 

1. 0, 0 7. 5,-1 

5.6, -1 4.2,-1 

. 25 4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

·--i; II r/a 

Oo=150°; io=o.ao-Continued 

0.963 0.60 

.916 

.836 

. 727 

.605 

.487 

.370 

.269 

.177 

.118 

.069 . 70 

.984 

.957 

.899 

. 807 

.690 

.565 

.432 

.310 

.196 

.126 

.072 

.035 

.80 

.980 

.943 

. 874 

. 773 

.655 

. 516 

.379 

. 241 

.153 

.083 

.039 

.986 

.957 

Oo=l50°; ~=0.35 Oo 

[Pl. 87] 

0.985 0.25 

.974 

.961 

.946 

.931 .30 . 915 

.900 

.882 

.859 

.833 

.805 

.983 

.961 

.936 

.903 

.870 .35 

.837 

.806 

. 770 

• 729 

.675 

. 987 

.968 

. 934 

.888 

.839 

. 786 .40 . 735 

.676 

. 626 

. 565 

. 983 

.955 

.912 

.851 

. 780 

.698 

.635 

.567 .45 

.497 

.424 

.989 

.967 

.924 

.858 

. 763 

.679 

.590 

4.2, -1 0.900 

3.2,-1 .817 

2.4,-1 . 702 

1.8,-1 .568 1.3,-1 .410 

1.0, -1 .290 

7.5,-2 .179 

5.6, -2 .095 

4.2, -2 .043 

5.6,-1 .989 

4. 2, -1 .966 3.2,-1 .923 

2.4,-1 .851 

1.8,-1 . 754 

1.3,-1 .623 

1.0,-1 .510 

7.5,-2 .388 

5.6,-2 .275 

4.2, -2 .182 

3.2,-2 .114 

2.4, -2 .062 

1.8,-2 .029 

3.2,-1 .976 

2.4,-1 .942 

1.8,-1 .889 1.3,-1 .808 

1.0,-1 . 730 

7.5, -2 .638 

5.6,-2 .542 4.2,-2 .450 

3.2,-2 .368 

2.4,-2 .286 1. 8, -2 .210 

1.3,-2 .136 

1.0,-2 .086 7.5,-~ .046 

5.6, -1 0.505 

4.2,-1 .426 

3.2,-1 .352 

2.4, -1 .275 

2.4,0 .971 

1.8,0 .927 

1.3,0 .845 

1.0,0 . 758 

7.5, -1 .650 

5.6,-1 .542 

4.2,-1 .443 3.2, -1 .358 

2.4,-1 .276 

1.8, -1 .202 

1.3, -1 .128 

1.8,0 .969 

1. 3, 0 .914 

1. 0,0 .841 

7.5,-1 . 735 

5.6, -1 .612 

4.2,-1 .491 

3.2,-1 .385 

2.4, -1 .287 

1.8, -1 . 205 

1.3, -1 .129 

1. 0, -1 .081 

1.8, 0 .989 

1.3, 0 .959 

1. 0, 0 .908 

7.5,-1 .820 

5.6 -1 . 701 

4.2, -1 • 568 

3.2, -1 .443 

2.4, -1 .322 

1.8, -1 .221 

1.3, -1 .134 

1.0, -1 .082 

7.5, -2 .043 

1.3,0 .983 

1. 0,0 .953 

7.5, -1 .889 

5.6,-1 . 788 

4.2, -1 .661 

3.2,--1 .527 

2.4,-1 .387 

1.8, -1 .263 

1.3, -1 .153 

1.0,-1 .090 7.5, -2 .045 
r/a 

0.50 

.60 

. 70 

0.05 

.10 

.15 

.20 

.25 

.30 

Tt 

TiS 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2. 4,-1 

1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

5.6, -1 4.2,-1 

5. 6,1 

4.2, 1 3.2, 1 2.4,1 

1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

1. 8,1 

1.3, 1 1.0, 1 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

1.3,0 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0, 0 

7.5, -1 5.6, -1 4.2, -1 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 

,_~ II r/a 

8 8o = 150°; io = 0.35-Continued 

0.978 0.70 

.938 

.862 

. 751 

.623 

.476 

.335 

.199 

.117 

.056 

.022 

.985 .80 . 953 

.890 

. 799 

. 675 

.534 

.373 

.257 

.153 

.079 

. 034 

. 988 

.963 

[Pl.88] 

0.984 0.30 

.972 

.958 

.942 

.927 

.909 .35 

.893 

.874 

.850 

• 822 

. 792 

.982 

.958 

.931 

.897 

. 861 

.826 .40 . 793 

. 755 

. 711 

.655 

.987 

.965 

. 929 

. 881 

.828 

. 772 

. 717 

.656 .45 

.602 

.538 

.981 

.952 

.907 

.841 

. 765 

. 678 

. 612 

. 541 

.467 . 50 

.392 

.988 

.965 

.919 

.849 

. 747 

.659 

.564 

.476 

.394 .60 

.319 

.241 

.969 

.922 

.835 

. 742 

.628 

.514 

.411 

Tt 

TiS 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4, -2 1. 8, -2 

3.2,-1 

2.4, -1 1.8, -1 1.3,-1 

1.0, -1 7.5,-2 

5.6,-2 

4.2, -2 3.2, -2 2.4, -2 1.8,-2 

1.3, -2 1.0,-2 

7.5,-3 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

1. 8, 0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1. 8, -1 1.3, -1 1.0, -1 

1.8,0 

1. 3, 0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

1.3,0 

1. 0, 0 

7.5, -1 5.6, -1 4. 2,-1 

3.2, -1 2.4, -1 1.8,-1 

1.3,-1 

1.0, -1 7.5, -2 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 

0.916 

.837 

. 733 

.596 

.482 

.364 

.259 

.174 

.110 

. 061 

.029 

.973 

.937 

.879 

. 792 

. 712 

.620 

. 528 

.442 

.364 

.285 

. 210 

.136 

.086 

.046 

0.325 

. 243 

.170 

.101 

.967 

.908 

.830 

. 718 

.588 

.461 

.352 

. 254 

.173 

.102 

.059 

.989 

.956 

.902 

.808 

.682 

. 542 

.412 

.289 

.190 

.107 

.061 

.028 

.982 

.949 

.881 

. 775 

.640 

. 500 

.356 

.232 

.126 

.069 

.030 

.977 

.933 

.852 

. 735 

.600 

.448 

.305 

.173 

.096 

.042 

.984 

.950 

.883 

. 786 

.655 

. 510 

.349 

.236 

.139 

.071 

. 031 

TABLES 

r/a 

0. 70 5.6,-1 

4. 2,-1 

3.2, -1 2.4,-1 

1._8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 

0.05 5. 6,1 

4.2,1 

3.2, 1 2. 4,1 

1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5. 6,0 

4. 2,0 

3.2,0 

.10 1. 8,1 

1. 3,1 

1.0, 1 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

.15 1. 0,1 

7. 5,0 

5.6,0 

4. 2, 0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0, 0 

7.5, -1 

.20 5.6,0 

4.2,0 

3. 2,0 

2. 4,0 

1.8,0 

1.3,0 

1. 0, 0 

7.5,-1 

5.6, -1 4.2, -1 

. 25 4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 

.30 2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 

.35 1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1.8, -1 

r/a 

8o= 150°; ~ =0.40-Continued 

0.988 0.80 

.961 

.910 

.827 

.717 

.578 

.465 

.351 

.252 

.170 

.109 

.061 

.029 

8 8o=150°; o;;=0.45 

[Pl. 89] 

0.984 0.35 

.971 

.956 .40 .940 

.924 

. 906 

.889 

.869 

.844 

.816 

• 784 

. 981 

. 957 

.929 .45 .893 

.855 

.819 

. 785 

. 746 

. 701 

.642 

.986 

.964 

.927 

.876 .50 .822 

. 763 

. 707 

.643 

• 588 

.522 

.981 

.950 

.903 

.835 .60 . 757 

. 667 

.598 

. 525 

. 450 

.373 

.987 

.964 

.916 

.R43 

• 738 . 70 .646 

. 549 

.458 

.375 

. 299 

.222 

.967 

.919 

.828 

. 732 

.615 

. 497 

.393 .so 

.305 

. 224 

.152 

.087 

.966 

.905 

.824 

. 707 

. 574 

.443 

.333 

. 235 

.155 

3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 1.8, -2 1.3, -2 1.0, -2 7.5, -3 

1. 3,-1 

1. 0, -1 

1.8,0 

1.3,0 

1.0, 0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2. 4, -1 1.8, -1 1.3, -1 1.0, -1 

1.3,0 

1.0,0 

7.5,-1 

5. 6,-1 

4. 2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3,-1 

1.0, -1 7.5,-2 

1. 0,0 

7.5, -1 5.6, -1 4. 2, -1 3.2, -1 2. 4, -1 1.8,-1 

1.3, -1 1.0, -1 7.5, -2 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2. 4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

5.6,-1 

4.2,-1 

3.2, -1 2. 4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

3.2, -2 2.4, -2 1.8,-2 

4.2, -1 3.2,-1 

2. 4,-1 

1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 4.2,-2 

3.2, -2 2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

7.5, -3 

35 

1-.!. 80 

0.971 

.932 

.871 

. 781 

. 700 

.610 

.522 

.439 

.363 

.285 

.210 

.136 

.086 

.046 

0.087 

• 048 

.988 

.954 

.898 

.801 

.670 

.527 

.394 

.271 

.172 

.092 

.050 

.981 

.947 

.877 

. 766 

.627 

.484 

.338 

.215 

.112 

.058 

.024 

.976 

.931 

.847 

. 726 

. 587 

.432 

.289 

.158 

.~5 

. 035 

.983 

• 948 

.879 

• 779 

.644 

.496 

.336 

.226 

.132 

.067 

.030 

.987 

.959 

.907 

.820 

. 708 

.567 

.455 

.345 

.248 

.169 

.109 

.061 

.029 

.990 

.970 

.930 

.867 

• 774 

.693 

.604 

.519 

.438 

.363 

.285 

. 210 

.136 

.086 

.046 
36 

r/a 

0.05 

.10 

.15 

.20 

. 25 

.30 

.35 

0.05 

.10 

Tt 

;:28 

5.6, 1 4.2,1 

3. 2,1 

2. 4,1 

1. 8,1 

1.3,1 

1.0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

1. 8,1 

1. 3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4. 2,-1 

3.2,-1 

2. 4,-1 

1.8, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4. 2,-1 

3.2,-1 

2. 4, -1 1.8, -1 1.3,-1 

1.0, -1 

2.4,0 

1.8,0 

1. 3, 0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2. 4. -1 

2.4, 1 1.8, 1 1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-~ II rfa 

8o=l50°; !=0.50 

8o 

[Pl.OO] 

0.984 0.35 

.971 

.956 

.939 

.923 .40 

.904 

.888 

.867 

.842 

. 813 

. 782 

.981 

.956 

.928 

.892 

.854 .45 

.817 

. 782 

. 743 

.697 

.638 

.986 

.964 

.926 

.875 

.820 

. 760 .50 . 703 

.639 

. 583 

. 517 

.980 

.950 

.902 

.833 

.754 

.663 .60 

.593 

.519 

.444 

.367 

.987 

.963 

.915 

.841 

. 734 

.642 

.544 . 70 .453 

.369 

.293 

. 216 

.146 

.967 

.918 

.826 

. 729 

.610 

.492 

.386 

.299 .80 . 217 

.147 

.082 

.045 

. 990 

.965 

.903 

.822 

. 704 

.569 

.438 

.327 

. 228 

8 8o=l6S0 ; g;;=0.05 

[Pl. 91] 

0. 987 0.10 

.984 

.980 

.977 

.974 .15 

.969 

. 985 

.978 

.971 

.964 

Tt 

;:28 

1.8, -1 1.3, -1 1.0, -1 

1.8,0 

1.3,0 

LO,O 

7.5,-1 

5.6, -1 4.2, -1 3.2,-1 

2. 4, -1 1.8, -1 1.3, -1 1.0, -1 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2. 4, -1 1.8. -1 1.3, -1 1.0,-1 

7.5,-2 

1. 0,0 

7.5,-1 

5.6,-1 

4. 2,-1 

3.2,-1 

2. 4. -1 1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

7.5,-1 

5.6,-1 

4. 2,-1 

3.2, -1 2. 4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5. 6,-2 

4.2,-2 

5.6,-1 

4. 2, -1 3. 2, -1 2.4, -1 1. s. -1 1.3, -1 1.0,-1 

7.5, -2 5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8. -2 

4.2,-1 

3.2, -1 2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4. 2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3, -2 1.0, -2 7.5,-3 

3.2,0 

2. 4,0 

1.8,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

l.S.O 

1.3,0 

1.0,0 

0.150 

.083 

.045 

.988 

.954 

.897 

. 798 

.666 

.522 

.388 

.264 

.166 

.088 

.046 

.981 

.947 

.875 

. 763 

.623 

.478 

.333 

.209 

.107 

.OM 

.022 

.976 

.930 

.845 

. 722 

.582 

• 427 

.283 

.154 

.081 

.033 

.983 

.947 

.877 

. 776 

.640 

.492 

.332 

.223 

.130 

.066 

.029 

.987 

.958 

.906 

.818 

. 705 

.564 

.452 

.343 

.247 

.169 

.109 

.061 

.029 

.990 

.970 

.929 

.865 

. 772 

.691 

.602 

.518 

.438 

.363 

• 285 

.210 

.136 

.086 

.046 

0.958 

.951 

.943 

.985 

. 975 

.965 

.954 

.944 

.932 

.922 

r/a 

0.20 

.25 

.30 

.35 

.40 

.45 

.50 

0.05 

.10 

.15 

Tt 

;:28 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4. 2, -1 3.2,-1 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4. 2, -1 3.2,-1 

2.4,-1 

1.8, -1 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

1.0,0 

7.5,-1 

5.6, -1 4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0,-1 

7.5,-2 

1.0,0 

7.5, -1 5.6,-1 

4. 2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0,-1 

7.5,-2 

5.6, -2 

7.5, -1 5.6,-1 

4.2,1 

3.2,1 

2.4,1 

1. 8,1 

1.3, 1 1.0,1 

7.5,0 

5.6,0 

4.2,0 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3. 2, 0 

2.4,0 

1.8,0 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

r/a 

0.989 0.50 .980 

.968 

.953 

.937 

.924 

.910 

.894 

.983 

.969 

.950 

.933 .60 

.915 

.896 

.878 

.859 

.984 

.967 

.949 

.928 

.904 

.882 

. 861 

.837 

.812 

.981 . 70 .966 

.945 

.920 

.893 

.867 

.840 

.813 

. 779 

.980 

.962 

.938 

.910 

.881 

.850 

.818 

. 781 

. 749 .80 . 711 

.989 

.976 

.956 

.930 

.901 

.866 

.830 

. 787 

. 752 

. 712 

.668 

.986 

.971 

8 8o=IW; BO=O.IO 

[Pl. 92] 

0.987 0.20 

.981 

.974 

.968 

.961 

.955 

.948 

.939 

.929 

.981 .25 

.970 

.957 

.943 

.930 

.918 

.904 

.887 

.984 

.970 

.951 .30 

.931 

.910 

.890 

:867 

.847 

.822 

Tt 

;:28 

4.2, -1 3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2, -2 3.2,-2 

2.4,-2 

1.8,-2 

1. 3, -2 1.0, -2 

3.2, -1 2.4, -1 1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4.2, -2 3.2, -2 2.4,-2 

1.8,-2 

1.3, -2 1.0,-2 

7. 5,-3 

5.6,-3 

4.2, -3 

3.2, -3 

2.4,-1 

1.8, -1 1.3, -1 1.0,-1 

7.5,-2 

5.6,-2 

4.2, -2 3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

7.5,-3 

5.6, -3 

4.2,-3 

3.2,-3 

2.4, -3 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,0 

2.4, 0 

1.8,0 

1.3,0 

1. 0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

2.4,0 

1.8.0 

1.3,0 

1. 0, 0 

7.5,-1 

5.6,-1 

4.2,-1 

1-~ 80 

0.949 

.922 

.888 

.849 

.801 

. 761 

.717 

.670 

.621 

.571 

.513 

.990 

.977 

.959 

.932 

.899 

.851 

.807 

. 753 

.694 

.634 

.577 

.514 

.450 

.374 

.310 

.982 

.967 

.944 

.910 

.873 

.824 

. 765 

.697 

.626 

.547 

.468 

.380 

.313 

.242 

.175 

.117 

.073 

.987 

.975 

.956 

. 934 

.903 

.860 

.807 

. 746 

.668 

.578 

.467 

.375 

.279 

.193 

.124 

.075 

.039 

0.979 

.961 

.936 

.908 

.876 

.850 

.823 

. 793 

. 760 

.985 

.966 

.940 

.902 

.869 

.832 

. 797 

. 761 

. 725 

.684 

.986 

.968 

.935 

.900 

.857 

.813 

. 769 
r/a 

0.30 3.2, -1 2.4,-1 

1.8, -1 

.35 1.8, 0 

1. 3, 0 

1. 0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 1.3, -1 

.40 1.3,0 

1. 0, 0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1 3,-1 

1.0, -1 7.5, -2 

.45 1. 0,0 

7.5,-1 

5.6,-1 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

.50 1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6,-2 

0.05 5.6,1 

4.2, 1 3.2, 1 2.4, 1 1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6, 0 

4.2,0 

.10 1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2, 0 

2.4,0 

1.8, 0 

1. 3, 0 

.15 7.5, 0 

5.6,0 

4.2, 0 

3.2, 0 

2.4, 0 

1. 8, 0 

1. 3, 0 

1. 0,0 

7.5, -1 

. 20 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8, 0 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6,-1 

4.2, -1 

·~ II r/a 

f) 

fJo=165°; eo=0.1o-continued 

0. 729 0.50 .685 

.637 

.986 .60 

.963 

.933 

.892 

.842 

. 791 

. 741 

.690 

.639 

.578 

.981 

. 960 

.925 

.879 

.824 

. 768 . 70 . 708 

.648 

.581 

.527 

.464 

.979 

.953 

.914 

.862 

.806 

. 740 

.671 

. 593 

.532 .80 

.465 

.396 

.990 

.973 

.943 

.899 

.847 

. 781 

. 707 

.620 

.549 

.473 

.399 

flo= 165°; ~ =0.15 flo 

[Pl. 93] 

0.989 0.25 

.981 

.972 

.963 

.953 

.943 

.934 

.923 

.910 

.895 

.987 .30 

.973 

.957 

.937 

.916 

.897 

.879 

. 859 

.835 

.804 

.977 .35 

.956 

.928 

.899 

.868 

.838 

. 805 

. 776 

. 740 

.987 

.969 

.943 .40 

.907 

.865 

.818 

. 781 

. 742 

.699 

.653 

Tt 

TiB 

4.2, -2 3.2,-2 

2.4, -2 

5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4.2, -2 3.2, -2 2.4, -2 1.8,-2 

1.3,-2 

1. 0,-2 

4.2,-1 

3.2,-1 

2.4,-1 

1. 8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 4. 2,-2 

3.2, -2 2.4, -2 1.8, -2 1.3, -2 1. 0,-2 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4,-2 

1.8,-2 

1.3,-2 

1.0, -2 7.5,-3 

5.6, -3 

3.2,0 

2.4,0 

1. 8, 0 

1.3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4, -1 

2.4,0 

1.8, 0 

1.3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4,-1 

1.8,-1 

1. 8, 0 

1.3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1. 8, -1 1.3, -1 1. 0,-1 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 

1-!. so 

0.328 

.262 

.195 

.980 

.955 

.919 

.868 

.803 

.714 

.633 

.538 

.441 

.350 

.271 

.198 

.135 

. 078 

. 045 

.984 

.965 

.934 

.891 

.825 

. 757 

.669 

.566 

.456 

.352 

.249 

.161 

. 087 

. 047 

.989 

.974 

.951 

.914 

.872 

.814 

. 740 

.650 

.553 

.441 

.327 

.208 

.129 

.066 

.028 

0.977 

. 951 

.911 

.856 

.808 

. 756 

. 705 

.655 

.605 

.549 

.980 

.953 

.904 

.854 

. 792 

. 727 

• 666 

.609 

.550 

.487 

.979 

.945 

.902 

.841 

. 770 

.696 

.627 

.558 

.490 

.413 

.350 

.973 

.942 

.891 

.822 

. 744 

.665 

. 582 

.502 

37 

r/a 

·~ II r/a 

0.40 1.3,-1 0.417 0.60 1.8,-1 0. 717 

1.0,-1 .351 1.3,-1 .596 

7.5,-2 .280 1.0,-1 .491 

7.5,-2 .375 

.45 1.3,0 .988 5.6,-2 .266 

1. 0, 0 .969 4.2, -2 .175 

7.5,-1 .931 3.2,-2 .109 

5.6, -1 .873 2.4,-2 .059 

4. 2,-1 • 799 1.8,-2 .028 

3.2,-1 .718 

2.4,-1 .626 .70 4.2,-1 .977 

1.8,-1 .533 3.2,-1 .949 

1.3, -1 .432 2.4,-1 .904 

1.0, -1 .358 1.8,-1 .842 

7.5,-2 .282 1.3,-1 . 749 

5.6,-2 .211 1.0,-1 .659 

4.2,-2 .149 7.5,-2 .546 

5.6,-2 .424 

. 50 1.0,0 .985 4.2,-2 .304 

7.5, -1 .960 3.2,-2 .202 

5.6,-1 .916 2.4,-2 .115 

4.2,-1 .853 1.8,-2 .056 

3.2, -1 . 777 1.3, -2 .019 

2.4,-1 .684 

1.8, -1 .583 .80 3.2,-1 .983 

1.3, -1 .468 2.4,-1 .962 

1.0, -1 .380 1.8, -1 .929 

7.5, -2 .292 1.3, -1 .875 

5.6,-2 . 215 1. 0, -1 .819 

4.2,-2 .149 7.5,-2 . 742 

3.2,-2 .098 5.6,-2 .648 

2.4,-2 .056 4.2, -2 .544 3.2,-2 .441 

.60 7.5, -1 .990 2.4, -2 .333 

5.6, -1 .970 1.8, -2 .235 

4. 2,-1 .934 1.3,-2 .145 

3.2,-1 .881 1. 0,-2 .089 

2.4,-1 .808 7.5, -3 .047 

[Pl. 94] 

0.05 5.6, 1 0.986 0.25 4.2,-1 0.562 

4. 2,1 .975 3.2,-1 .502 

3.2, 1 .964 2.4, -1 .436 

2.4,1 .951 .30 2. 4,0 .974 1. 8,1 .940 1.8,0 .939 1. 3,1 . 927 1. 3, 0 .876 1. 0,1 . 915 1. 0,0 .811 7.5,0 .901 7.5, -1 . 732 5.6,0 .884 5.6, -1 .651 4.2,0 .864 4.2,-1 .575 

.10 1. 8,1 .984 3.2, -1 .507 

2.4, -1 .437 1. 3,1 .965 1.8, -1 .367 1. 0,1 .944 

7.5,0 .918 .35 1.8,0 .973 

5.6,0 .892 1.3,0 .929 

4.2,0 .867 1.0, 0 .874 

3.2,0 .844 7.5, -1 . 796 

2.4,0 . 817 5.6, -1 . 705 

1.8,0 • 788 4. 2,-1 .613 

1.3,0 . 748 3.2, -1 .529 

2.4, -1 .447 

. 15 1. 0,1 .988 1.8, -1 .370 

7. 5,0 .971 1.3, -1 .287 

5.6,0 .943 1.0, -1 .224 

4.2,0 .907 

3.2,0 .869 .40 1.8,0 .990 

2.4,0 .829 1.3,0 .965 

1.8,0 . 792 1. 0, 0 .925 

1.3,0 . 749 7.5,-1 .859 

1.0,0 . 712 5.6, -1 . 772 

7.5, -1 .667 4. 2, -1 .673 

3.2, -1 .576 

.20 5. 6,0 . 984 2.4, -1 . 476 

4. 2,0 . 961 1.8, -1 .384 

3. 2,0 .926 1. 3, :-1 .292 

2. 4,0 .879 1.0, -1 .225 

1. 8, 0 .826 7.5, -2 .160 

1. 3, 0 . 765 

1.0,0 .719 .45 1.3,0 .984 

7.5,-1 .669 1.0,0 .960 

5.6,-1 .616 7.5,-1 .911 

4.2, -1 .560 5.6,-1 .837 

4. 2,-1 . 743 

.25 4. 2,0 .989 3.2, -1 .641 

3. 2,0 .971 2.4, -1 .529 

2.4,0 .936 1.8, -1 .420 

1.8,0 .885 1.3, -1 .310 

1.3, 0 .814 1.0,-1 .233 

1. 0,0 . 753 7.5,-2 .162 

7.5, -1 .687 5.6,-2 .104 

5.6, -1 .623 4.2,-2 .060 
38 

Tt 

;:28 r/a 

0.50 1.0,0 

7.5,-1 

5.6,-1 

4. 2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2,-2 

3.2,-2 

. 60 7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2. 4,-1 

1.8, -1 1.3,-1 

1.0, -1 7.5, -2 5.6,-2 

4.2, -2 3.2, -2 

0.05 5.6,1 

4.2,1 

3.2,1 

2.4,1 

1. 8,1 

1.3, 1 1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

.10 1. 8,1 

1.3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3, 0 

.15 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 1. 3, 0 1.0,0 

7.5, -1 

.20 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 1.3, 0 1. 0,0 

7.5, -1 5.6,-1 

4.2, -1 

.25 4.2,0 

3.2,0 

2.4,0 

1. 8, 0 1.3, 0 1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 

.30 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

1-!.. II rfa Tt 1-.!. Bo ;:28 Bo 

8o=165°; :0=0.20-Continued 

o. 981 0. 70 5.6,-1 0.990 

.949 4.2,-1 .970 

.892 3.2,-1 .934 .811 2.4,-1 .877 . 715 1.8, -1 . 798 .601 1.3,-1 .687 .481 1.0, -1 . 583 . 351 7.5,-2 .460 .258 5.6,-2 .336 .173 4.2,-2 .225 .108 3.2,-2 .139 .061 2.4,-2 .073 .031 1.8,-2 .033 

.987 .80 3.2,-1 . 978 

.961 2.4,-1 .951 . 914 1.8, -1 .909 .848 1.3, -1 .842 . 755 1.0, -1 . 775 .643 7.5,-2 .687 .502 5.6, -2 • 588 .385 4.2,-2 .485 .265 3.2, -2 .390 .162 2.4,-2 . 297 .088 1.8,-2 . 214 . 042 1.3, -2 .136 1. 0,-2 .086 7.5, -3 .046 

[Pl. 95] 

0.983 0.30 7.5, -1 0.680 .970 5.6, -1 .586 . 956 4.2, -1 .499 .942 3.2, -1 .424 .928 2.4,-1 .348 .912 1.8, -1 .276 .898 1.3, -1 .198 .881 .35 2.4,0 .990 .860 

.837 1.8,0 .967 

.812 1. 3, 0 . 915 1. 0, 0 .848 

.980 7.5, -1 . 755 

.957 5.6,-1 .649 

.932 4.2, -1 .543 

.901 3.2, -1 .448 

.870 2.4, -1 .350 

.840 1.8, -1 .279 

.813 1.3, -1 .198 

. 781 1.0,-1 .141 

. 746 .40 1.8,0 . 988 .699 1.3,0 .957 1. 0, 0 .910 . 985 7.5, -1 .831 .965 5.6, -1 .727 .931 4.2, -1 .612 .888 3.2,-1 .501 .843 2.4,-1 .391 . 795 1.8,-1 .294 . 750 1.3, -1 .203 . 700 1.0, -1 .143 .657 7.5,-2 .089 .605 .45 1.3,0 .981 

.980 1. 0, 0 .952 

.952 7.5, -1 .893 

.911 5.6,-1 .804 .855 4.2, -1 .694 . 791 3.2,-1 .577 . 719 2.4,-1 .451 .665 1.8, -1 .334 .607 1.3, -1 .222 .546 1.0, -1 .151 .482 7.5, -2 .091 

5.6, -2 .049 

.987 

.965 .50 1. 0,0 .977 .923 7.5, -1 .938 .862 5.6, -1 .870 . 777 4.2, -1 . 774 . 704 3.2, -1 .662 .627 2.4, -1 .532 .553 1.8,-1 .401 .484 1.3, -1 .266 .418 1.0, -1 .177 .347 7.5, -2 .103 5.6, -2 .053 .990 4.2, -2 .024 .968 

.926 .60 7.5, -1 .984 .851 5.6, -1 .953 . 774 4.2, -1 .897 

r/a Tt 

;:28 

0.60 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2,-2 

3.2, -2 

. 70 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

0.05 5.6, 1 4.2,1 

3.2,1 

2.4,1 

1. 8,1 

1.3, 1 1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

.10 1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

.15 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3, 0 1.0,0 

7.5,-1 

.20 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0, 0 7.5, -1 5.6,-1 

4.2, -1 

.25 4.2,0 

3.2,0 

2.4,0 

1. 8, 0 1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2,-1 

2.4, -1 

.30 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 

.35 2.4,0 

1.80 

1-.!. II r/a 80 

8o=l65°; ~=0.25-Continued 

0.818 0.70 • 710 

.583 

.431 

.312 

.198 .80 .109 

.051 

.020 

.988 

.963 

.921 

.853 

. 762 

.638 

.527 

.404 

.288 

8 8o=165°; 6o=0.30 

[Pl.96] 

0.980 0.35 .966 

.950 

.933 

. 917 

.899 

.883 

.864 

.841 

.814 

. 785 .40 .978 

.951 

.923 

.887 

.851 

.818 

. 786 

. 751 

. 710 

.658 

.983 

.959 .45 .921 

.872 

.821 

. 767 

.716 

.659 

.611 

.553 

.977 

.946 

.899 

.834 .50 . 762 

.681 

.620 

.555 

.489 

.420 

.985 

.960 

.912 

.843 

. 746 .60 .664 

.578 

.497 

.422 

.353 

.280 

.988 

• 964 

.916 

.830 

. 742 . 70 .637 

.533 

.439 

.359 

.282 

.210 

.139 

.988 

.963 

Tt 1-.!. ;:28 80 

4.2,-2 0.190 

3.2, -2 .117 2.4,-2 .063 1.8, -2 .029 

3.2,-1 .974 

2.4,-1 .941 

1.8, -1 .891 

1.3, -1 .815 1.0, -1 . 741 7.5,-2 .649 

5.6,-2 .552 4.2, -2 .457 3.2, -2 .371 2.4,-2 .287 1.8,-2 .211 1.3, -2 .136 1.0, -2 .086 7.5,-3 .046 

1.3,0 0.902 

1.0,0 .827 7.5, -1 . 722 5.6,-1 .602 4.2, -1 .486 3.2, -1 .385 2.4, -1 .292 

1.8, -1 .214 1.3, -1 .139 

1.0, -1 .091 

1.8,0 .986 1.3,0 .951 

1.0,0 .897 

7.5,-1 .807 5.6, -1 .690 

4.2,-1 .562 3.2,-1 .442 2.4,-1 .327 1. 8,-1 .230 1.3, -1 .144 1.0,-1 .092 

7.5, -2 .050 

1.3,0 .979 1.0,0 .945 

7.5, -1 .878 5.6, -1 . 777 4.2,-1 .653 3.2,-1 .525 2.4,-1 .391 

1.8, -1 .271 1.3, -1 .163 1. 0,-1 .100 7.5, -2 .053 5.6,-2 .024 

1. 0,0 .973 

7.5, -1 .929 

5.6, -1 .851 4.2, -1 . 743 3.2, -1 .619 

2.4, -1 .478 1.8, -1 .342 1.3, -1 .209 1. 0,-1 .126 7.5, -2 .064 5.6,-2 .027 

7.5, -1 .982 

5.6, -1 .947 

4.2, -1 .882 3.2, -1 . 793 

2.4, -1 .673 1.8, -1 .538 1.3, -1 .3R1 1. o, -1 .266 7.5, -2 .161 5.6,-2 .083 4.2,-2 .037 

5.6, -1 .986 

4.2,-1 .958 

3.2, -1 .910 

2.4,-1 .833 1. 8,-1 . 733 1.3, -1 .601 1.0, -1 .489 

7.5,-2 .371 5.6, -2 .264 4.2,-2 .176 3.2, -2 .111 
rfa 

·-~ II r/a 

9o= 165°; :0 =0.38-Continued 

0. 70 2.4, -2 0.061 0. 80 7.5, -2 

1.8, -2 .029 5.6, -2 4.2, -2 

.80 4.2, -1 . 989 3.2, -2 

3.2, -1 .970 2.4, -2 2.4, -1 .933 1. 8,-2 

1.8, -1 .877 1.3, -2 

1.3, -1 . 794 1.0, -2 

1.0, -1 . 716 7.5,-3 

[Pl. 97] 

0.05 7.5,1 0.990 0.35 1. 8,-1 

5.6,1 .978 1.3, -1 4.2,1 . 962 1.0, -1 3.2,1 .945 .40 1. 8,0 2.4,1 .927 

1.8, 1 .909 1. 3, 0 

1. 3,1 .889 1. 0, 0 

1.0, 1 .872 7.5-1 

7.5,0 .850 5.6, -1 

5. 6,0 .825 4.2, -1 

4.2,0 . 796 3.2, -1 

3.2,0 . 764 2.4,-1 

1. 8,-1 

.10 1. 8, 1 .975 1._3, -1 

1. 3, 1 . 946 1.0, -1 

1. 0, 1 . 915 7.5,-2 

7.5,0 .876 .45 1. 3, 0 5.6,0 .836 1. 0, 0 4.2,0 . 799 7.5, -1 

3.2,0 . 765 5.6, -1 2.4,0 .726 4.2, -1 

1. 8, 0 .682 3.2, -1 1. 3,0 -626 2.4, -1 1.8, -1 . 15 1. 0,1 .981 1.3, -1 7. 5,0 .955 1.0, -1 5.6,0 .913 7.5,-2 4. 2,0 .859 

3.2,0 .803 .50 1. 0, 0 2.4,0 . 744 7.5, -1 1.8,0 . 688 5.6, -1 1. 3, 0 .627 4.2, -1 1. 0, 0 .575 3.2, -1 7.5, -1 . 513 2.4, -1 1.8, -1 .20 5.6,0 . 975 1. 3,-1 4. 2,0 .940 1.0, -1 3.2,0 .888 7.5, -2 2.4,0 .818 1.8,0 . 738 .60 7.5, -1 1. 3, 0 .650 5.6, -1 1. 0,0 .584 4.2, -1 7.5, -1 . 515 3.2,-1 

5.6, -1 .445 2.4,-1 

4.2, -1 .374 1. 8,-1 

1.3, -1 . 25 4.2,0 .983 1.0, -1 3.2,0 . 956 7.5, -2 2.4,0 .903 5.6, -2 1. 8, 0 .827 4.2, -2 1. 3, 0 . 721 1. 0,0 . 632 . 70 5.6, -1 7.5, -1 . 539 4.2, -1 5.6, -1 .454 3.2, -1 4.2, -1 .376 2.4, -1 3.2, -1 .305 1.8, -1 2. 4,-1 . 233 1. 3,-1 

1.0, -1 .30 3.2,0 . 987 7.5, -2 2.4,0 .960 5.6,-2 1. 8, 0 . 907 4.2, -2 1.3,0 .813 3.2, -2 1. 0, 0 . 717 2.4,-2 

7.5, -1 .603 1.8, -2 5.6,-1 .492 

4.2, -1 .393 80 4.2, -1 3.2, -1 .311 3.2, -1 2.4, -1 .234 2.4, -1 1. 8,-1 .166 1. 8,-1 

1.3, -1 .101 1. 3,-1 

1. 0,-1 .35 2. 4,0 . 987 7.5, -2 1.8,0 . 959 5.6, -2 1.3,0 .893 4.2, -2 1. 0, 0 .810 3.2, -2 7.5, -1 . 695 2.4, -2 5.6, -1 . 566 1. 8, -2 4.2, -1 .443 1.3, -2 3.2, -1 .338 1. 0,-2 

2.4, -1 .245 7.5,-3 

TABLE'S 

1-.!. 89 

0.625 

.532 

.444 

.365 

.285 

. 210 

.136 

.086 

.046 

0.169 

.101 

. 061 

.985 

. 946 

.886 

. 788 

. 661 

.524 

.398 

.281 

.185 

.106 

.062 

.030 

. 976 

.939 

.866 

. 756 

. 622 

. 485 

.347 

. 228 

.126 

. 070 

.032 

. 971 

. 922 

.837 

.718 

.586 

.439 

.301 

.172 

.097 

.044 

.980 

. 941 

.871 

. 773 

.645 

.504 

.348 

.237 

.141 

.072 

. 031 

.984 

.954 

.901 

. 818 

. 711 

.575 

.465 

.353 

. 253 

.171 

.109 

. 061 

.029 

.988 

.967 

.926 

.866 

. 778 

.699 

. 611 

. 523 

. 440 

.363 

.285 

. 210 

.136 

.086 

.046 

r/a 

0.05 

.10 

.15 

.20 

.25 

.ao 

.35 

0.05 

7.5, 1 5.6,1 

4.2,1 

a.2,1 

2.4,1 

1. 8,1 

1. a, 1 1.0, 1 7.5,0 

5.6,0 

4.2,0 

a.2,0 

2.4, 1 1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1.3,0 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

a.2,0 

2.4,0 

1. 8, 0 t.a,o 

1. 0, 0 7.5, -1 

5.6,0 

4.2,0 

a.2,0 

2.4,0 

1.8,0 

I. a, 0 1.0,0 

7.5, -1 5.6, -1 4.2,-1 

4.2,0 

a.2,0 

2.4,0 

1. 8, 0 1. 3, 0 1. 0,0 

7.5, -1 5.6, -1 4.2, -1 a.2, -1 2.4, -I 

a.2,0 

2.4,0 

1.8,0 

l.a,o 

1.0, 0 7.5,-1 

5.6, -1 4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.a, -1 

2.4,0 

1. 8, 0 1.3,0 

1. 0, 0 7.5, -1 5.6, -1 4.2, -1 a.2, -1 

7.5,1 

5.6,1 

4.2,1 

3.2,1 

2.4,1 

1. 8,1 

1. a, 1 1. 0,1 

7.5,0 

·-~ II r/a 

8 8o=165°; ~=0.40 

[Pl. 98] 

0.989 o.a5 

.977 

.960 

.941 

.922 .40 .903 

.881 

.863 

.840 

.81a 

. 782 

;749 

.990 

.974 

.943 

.909 .45 .868 

.826 

. 786 

. 750 

. 708 

.662 

.603 

.980 

.952 

.907 

.850 .50 . 790 

.727 

.668 

.604 

.549 

.485 

.973 

.936 

.881 

.805 .60 . 721 

.628 

.559 

.487 

.414 

.341 

. 982 

.953 

.897 

. 815 

. 703 . 70 

.609 

.512 

.42a 

.344 

.272 

.201 

.986 

. 957 

.901 

. 801 

.699 

.579 

.463 .80 .a61 

.279 

.203 

.138 

.079 

.986 

. 956 

.885 

. 797 

.675 

.540 

.413 

.aoo 

8o=l65°; !=0.45 

8o 

[Pl. 99] 

0.988 0.05 

.976 

.958 

.939 

.919 .10 .899 

.877 

.858 

.834 

39 

2.4, -1 0.214 1.8,-1 .141 1.a, -1 .079 1. 0, --1 .044 

1.8,0 .984 

I.a,o .943 

1.0,0 .879 

7.5, -1 . 774 5.6, -1 .640 4.2, -1 .497 

3.2,-1 .368 2.4,-1 .250 1.8, -1 .157 1.3, -1 .084 1.0, -1 .045 

I.a,o .975 

1.0,0 .935 

7.5,-1 .857 5.6, -1 . 740 4.2, --1 .599 

a.2, -1 .458 2.4,--1 .a18 1. 8, --1 .200 La, -1 .104 1.0, -1 .053 7.5,-2 .022 

1.0, 0 .969 7.5, -1 .917 

5.6, -1 .826 4.2, -1 . 701 a.2,-1 .562 2.4,-1 .412 1.8, -1 .274 1.3, -1 .150 1.0, -1 .080 7.5, -2 .034 

7.5, -1 .978 

5.6,-1 .937 

4.2,-1 .862 3.2,-1 . 759 

2.4,-1 .626 1.8, -1 .482 I. a, -1 .328 1. o, --1 .221 7.5,-2 .130 5. 6, --2 .067 4. 2, --2 .030 

5.6, -1 .983 

4.2, -1 . 951 

a.2, -1 .895 2. 4, --1 .806 1.8, -1 .696 1. a, --1 .559 

1.0, -1 .451 7.5, -2 .343 5.6, -2 .248 4.2, -2 .169 

3.2, -2 .109 

2.4,-2 .061 1.8, -2 .029 

4.2,-1 .987 

a.2, -1 .965 

2.4,-1 .922 1. 8,-1 .858 1.3, -1 . 767 1. 0,-1 .688 7.5, -2 .602 5.6,-2 .518 4.2,-2 .4a8 3.2, -2 .a6a 2.4, -2 .285 1.8, -2 .210 I. a, -2 .136 1. o, -2 .086 

7.5, -a .046 

5.6,0 0.806 

4.2,0 . 774 a.2,0 . 7a9 

2.4,1 .989 1. 8,1 .97a 1.a,1 .940 1. 0,1 .906 

7.5,0 .863 
40 

r/a 

0.10 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

1. 3, 0 

.15 1.0, 1 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

1.3, 0 

1.0,0 

7.5, -1 

.20 5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

.25 4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

.30 3.2,0 

2.4,0 

1.8,0 

1. 3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 

.35 2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 

.40 1.8,0 

1.3,0 

1.0,0 

7.5,-1 

0. 05 7.5, 1 5. 6,1 

4. 2,1 

3. 2,1 

2.4, 1 1.8, 1 1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

.10 2. 4,1 

1. 8,1 

1.3, 1 I. 0,1 

7.5,0 

5.6,0 

4. 2,0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-;. II r/a 

(J 

fJo=165 ; 80=0.45-Continued 

0.819 0.40 . 778 

. 740 

.698 

.650 

.589 

.979 .45 .950 

• 904 

.844 

. 782 

.717 

.656 

.590 

.534 

.468 

.972 .50 

.934 

.876 

. 798 

. 711 

.615 

.543 

.470 

.396 

.323 

.981 

.951 .60 

.893 

.808 

.692 

.595 

.495 

.405 

.325 

.254 

.184 

.986 

.956 . 70 

.897 

. 793 

.688 

.564 

.445 

.343 

.260 

.185 

.122 

.067 

.986 

.954 

. 881 .80 . 790 

.664 

.525 

.395 

.288 

.196 

.125 

.067 

.036 

.983 

.940 

.874 

. 766 

(J 

fJo=l65°; oo=0.50 

[Pl. 100] 

0.988 0.10 

.975 

.958 

.938 

. 918 

.898 .15 

.875 

.806 

.832 

.804 

. 771 

. 736 

.989 

.972 

.940 

.904 .20 

.861 

.817 

. 775 

1-!. so 

5.6,-1 0.627 

4.2, -1 .481 

3.2, -1 .350 

2.4, -1 .232 

1.8, -1 .142 

1.3, -1 .072 

1.0, -1 .037 

1. 3,0 .974 

1.0,0 .933 

7.5, -1 .852 

5.6, -1 . 731 

4.2,-1 .586 

3.2,-1 .442 

2.4,-1 .301 

1.8, -1 .185 

1.3, -1 .092 1.0, -1 .045 

1. 3, 0 .990 1.0,0 .968 7.5, -1 . 914 

5.6, -1 .820 

4.2, -1 .690 

3.2, -1 .549 

2.4, -1 .396 

1.8, -1 .259 

1.3, -1 .138 

1.0, -1 .072 

7.5, -2 .029 

7.5, -1 .978 

5.6,-1 .935 

4.2,-1 .857 

3.2,-1 . 751 

2.4,-1 .614 

1.8, -1 .469 

1.3, -1 .317 

1.0, -1 .213 

7.5,-2 .126 

5.6,-2 .065 

4.2,-2 .029 

5.6, -1 .983 4.2, -1 .949 

3.2, -1 .891 

2.4, -1 .800 1. 8,-1 .687 

1.3, -1 .550 

1.0, -1 .443 

7.5, -2 .338 

5.6,-2 .246 

4.2,-2 .168 

3.2, -2 .108 

2.4, -2 .061 

1.8, -2 .029 

4.2, -1 .987 

3.2,-1 • 9fi3 

2.4,-1 .919 

1.8, -1 .853 

1.3, -1 . 761 

1.0, -1 .683 

7.5,-2 .598 

5.6, -2 . 516 

4.2,-2 .437 

3.2,-2 .363 

2.4,-2 .285 

1.8,-2 .210 

1.3, -2 .136 

1.0, -2 .086 7.5,-3 ,046 

---

3. 2,0 0. 737 

2.4,0 .694 

1.8,0 .646 

1.3,0 . 584 

1. 0,1 .979 7. 5,0 .950 

5. 6,0 . 903 4.2,0 .842 

3.2,0 . 779 

2. 4,0 . 713 

1.8,0 .652 

1. 3, 0 .585 

1. 0,0 .528 

7.5, -1 .462 

5.6,0 .972 

4. 2,0 .933 

3.2,0 .875 

2.4,0 .796 

rja 

0.20 

.25 

.30 

.35 

.40 

.45 

0. 05 

. 10 

. 15 

. 20 

Tt 

Ti8 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2, -1 

4. 2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 

2.4,0 

1.8,0 

1.3,0 

1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2. 4, -1 1.8, -1 1.3, -1 1.0, -1 

1.3,0 

1.0,0 

7.5,-1 

3.2, 1 2.4,1 

1. 8,1 

1. 3,1 

1.0, 1 7. 5,0 

5. 6,0 

1. 3,1 

1. 0,1 

7. 5,0 

5.6,0 

4.2,0 

3. 2,0 

2. 4,0 

1. 8, 0 

7. 5,0 

5. 6,0 

4. 2, 0 

3. 2,0 

2. 4,0 

1. 8,0 

1.3,0 

1.0,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1. 3,0 

-~ II r/a 

0. 707 0.45 

.610 

.538 

.464 

.390 

.316 

.981 

.950 .50 

.891 

• 806 

.688 

.590 

.490 

.399 

.319 

.248 

.178 

.985 

.955 .60 

.896 

. 791 

.684 

.560 

.440 

.337 

.254 

.179 

.117 

.063 

.985 . 70 

.954 

.880 

. 787 

.660 

.520 

.389 

.282 

.191 

.120 

.064 

.033 

.983 .80 .940 

.873 

. 763 

.623 

.476 

.344 

.227 

.137 

.068 

.034 

.974 

.932 

.850 

(J fJo=180°; 00 =0.05 

[Pl. 101] 

0. 987 0.20 . 983 

. 980 

. 976 . 25 . 972 

• 968 

. 963 

. 988 

. 981 

. 973 

. 965 

. 958 .30 . 951 

. 943 

. 934 

.990 

. 981 

. 970 

. 959 

. 947 

.936 .35 

.923 

. 912 

.987 

. 976 

.962 

.946 

.928 

1-!. so 

5.6, -1 0. 728 

4.2,-1 .581 

3.2, -1 .437 

2.4,-1 .296 1.8,-1 .180 

1.3, -1 .088 1.0,-1 .043 

1.3,0 . 990 1.0,0 .967 

7.5, -1 . 913 

5.6, -1 .817 

4.2,-1 .687 

3.2,-1 .544 

2.4,-1 .391 

1.8, -1 . 254 

1.3, -1 .135 

1.0,-1 .069 

7.5,-2 . 027 

7.5, -1 .977 

5.6, -1 .934 

4.2, -1 .856 

3.2, -1 . 748 

2. 4, -1 .610 

1.8, -1 .465 

1.3, -1 .313 

1.0, -1 . 211 7.5, -2 .124 

5.6, -2 .064 4.2, -2 .029 

5.6, -1 .982 

4.2, -1 .948 

3.2,-1 .889 

2.4,-1 . 797 

1.8, -1 .684 

1.3, -1 .547 

1.0, -1 .441 

7.5, -2 .337 

5.6, -2 .245 

4.2,-2 .168 

3.2, -2 .108 

2.4,-2 .061 

1.8,-2 .029 

4.2,-1 .986 3.2,-1 .963 2.4, -1 .918 

1.8,-1 .851 

1.3, -1 . 759 

1.0, -1 .681 

7.5, -2 .597 

5.6, -2 .516 

4.2,-2 .437 

3.2,-2 .363 2. 4,-2 .285 

1.8,-2 . 210 

1.3,-2 .136 

1.0, -2 .086 

7.5,-3 .046 

1. 0,0 0.914 

7.5, -1 . 899 

5.6,-1 .883 

2. 4, 0 . 979 

1. 8, 0 .964 1. 3, 0 .943 

1.0,0 . 924 

7.5, -1 .904 

5.6, -1 . 885 

4.2, -1 .865 

3.2, -1 . 845 

1. 8,0 . 980 

1. 3,0 . 961 

1.0, 0 . 942 

7.5, -1 . 918 

5.6, -1 . 894 

4.2, -1 .870 

3.2, -1 . 847 

2.4,-1 . 822 

1. 8,-1 . 794 

1. 3,0 . 977 1. 0,0 .961 

7.5,-1 .938 

5.6, -1 . 910 

4.2,-1 .882 3.2,-1 .854 2.4,-1 .825 

1. 8,-1 . 795 

1. 3,-1 . 759 
r/a 

0.40 1.3,0 

I. 0,0 

7.5, -1 

5.6, -1 

4.2, -1 

3.2, -1 

2.4, -1 I. 8,-1 

I. 3,-1 

1.0, -1 

7.5, -2 

.45 1. 0,0 

7.5, -1 

5.6, -1 

4.2,-1 

3.2, -1 

2.4,-1 

1.8, -1 

1. 3,-1 

1. 0,-1 

7.5, -2 

5.6, -2 

. 50 7.5, -1 

5.6, -1 

4.2,-1 

3.2,-1 

2.4, -1 

1.8, -1 

1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4.2, -2 

a.2, -2 

2.4,-2 

.60 5.6, -1 

4.2,-1 

a.2,-1 

2.4, -1 1. 8,-1 

I.a,-1 

0.05 5.6,1 

4. 2,1 

a.2, 1 

2.4, 1 

1.8, 1 

1.3, 1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

.10 1.8, 1 

1.a, 1 

1.0, 1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

.15 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.a,o 

1.0,0 

7.5,-1 

.20 5.6,0 

4. 2,0 

3. 2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

.25 3. 2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0,0 

t-i, II rfa 

8o= 180°; ~ =0.05-Continued 

0. 988 0.60 . 976 

. 957 

.931 

. 900 

. 869 

.835 

.801 

. 761 

. 727 . 70 . 686 

. 987 

. 972 

. 950 

. 922 

.890 

. 853 

. 814 

. 768 

. 730 

.687 

.640 

.984 

.967 

. 943 

. 913 .80 

.877 

.835 

. 784 

. 741 

.692 

.642 

.590 

.5a6 

.475 

.988 

. 9?4 

. 954 

.925 

.889 

.838 

8 8o=l80°; eo=O.IO 

[Pl. 102) 

0.989 0.25 

.982 

.975 

.967 

.960 

.952 

.945 .30 

.936 

.926 

.915 

.988 

.976 

.963 

.947 

.931 

.917 

.903 .35 .888 

.871 

.980 

.962 

.941 

.918 

.895 

.. 87a 

.848 

.827 

.801 .40 

.988 

.974 

.953 

.925 

.893 

.858 

.831 

.802 

. 770 

. 736 

.45 

.980 

.959 

.929 

.887 

.851 

Tt 

TiS 

1.0, -1 

7.5, -2 

5.6, -2 

4.2,-2 

3.2, -2 

2.4, -2 

1.8,-2 

1.3, -2 

1.0, -2 

3.2, -1 

2.4,-1 

1.8, -1 

1.3, -1 

I. 0,-1 

7.5, -2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1. 8, -2 

1. 3,-2 

1. 0,-2 

7.5, -3 

5.6, -3 

4.2,-3 

3.2, -3 

2.4, -1 

1. 8,-1 

1.3, -1 

1.0, -1 

7.5, -2 

5.6,-2 

4.2,-2 

a.2,-2 

2.4,-2 

1. 8,-2 

1. a, -2 

1. 0,-2 

7.5,-a 

5.6, -a 4.2, -a a.2,-a 

2.4, -a 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

5.6,-1 

4. 2,-1 

3.2,-1 

2.4, -1 

1.8,-1 

1.8,0 

1.3,0 

1.0,0 

7:5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

1.a,-1 

1.0, -1 

I.a,o 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

1.3,-1 

1.0,-1 

7.5,-2 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

1-.!. Bo 

0. 790 

. 731 

.668 

.604 

.543 

.477 

. 410 

.332 

.269 

.980 

.963 

.939 

. 901 

.862 

.809 

. 745 

. 672 

.596 

. 512 

.429 

.339 

. 271 

. 202 

.139 

.088 

. 051 

.985 

.973 

.952 

. 928 

.894 

.848 

. 791 

. 725 

. 642 

.547 

.4a1 

.a37 

. 241 

.158 

.095 

.052 

.024 

0.812 

. 775 

. 7a7 

.699 

.656 

.982 

.961 

.924 

.886 

.840 

. 792 

. 746 

. 703 

.656 

.607 

.982 

.955 

.923 

.877 

.824 

. 769 

. 717 

.663 

.609 

.545 

.490 

.977 

.953 

.9U 

.864 

.805 

. 746 

.682 

.618 

.548 

.491 

.425 

.989 

.974 

.945 

.092 

.847 

. 786 

r/a 

0.45 

.50 

.60 

0.05 

.10 

.15 

. 20 

.25 

Tt 

;:i8 

2.4, -1 

1.8, -1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 

7.5,-2 

5.6,-2 

4.2,-2 

a.2,-2 

2.4,-2 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 

5.6, 1 

4.2, 1 

3. 2,1 

2.4, 1 

1.8, 1 

1. 3,1 

1.0, 1 

7.5,0 

5.6,0 

4.2,0 

1.8, 1 

1. 3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0, 1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,0 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1. 0,0 

7.5, -1 

5.6, -1 

4.2, -1 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

t-f. II r/a 

8 8o=180°; eo=0.1o-Continued 

0. 716 0.60 .643 

.561 

.496 

.427 . 70 

.356 

.987 

.968 

.934 

.887 

.831 

. 760 

.682 

.589 

.514 

.436 

.359 

.287 

. 222 .80 .158 

.976 

.948 

.909 

.854 

. 785 

.690 

.604 

.504 

.403 

.310 

.232 

.161 

[Pl. 103) 

0.984 0.30 

.974 

.963 

.952 

.941 

.929 

.919 

.907 

.892 

.876 

.983 .35 

.964 

.945 

.922 

.899 

.878 

.858 

.836 

.811 

. 778 

.987 

.970 .40 

.945 

.913 

.880 

.846 

.814 

. 779 

. 748 

. 711 

.983 

.961 

.931 

.889 .45 .844 

. 79a 

. 754 

.712 

.668 

.620 

.988 

.971 

.940 

.895 

.834 

. 783 

. 727 .50 

.674 

.622 

.571 

.512 

Tt 

TiS 

1.8,-2 

1.3,-2 

1.0, -2 

4.2,-1 

3.2, -1 

2.4, -1 

1.8, -1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4, -2 

1.8, -2 

1.3,-2 

1.0,-2 

3.2,-1 

2.4, -1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

7.5,-3 

5.6,-3 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2. 4,-1 

1.8,-1 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 

1.0,-1 

7.5,-2 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

a. 2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-~ 

5.6,-~ 

4.2,-~ 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 

3.2,-1 

41 

1-.!. 80 

0.104 

.055 

.029 

.981 

.960 

.927 

.880 

.809 

. 738 

.644 

.536 

.422 

.316 

.214 

.131 

.065 

.032 

.986 

.971 

.946 

.906 

.862 

.800 

. 721 

.627 

.527 

.413 

.301 

.187 

.114 

.058 

.024 

0.974 

.942 

.888 

.833 

. 766 

.698 

.634 

.575 

.513 

.449 

.973 

.934 

.887 

.820 

. 744 

.666. 

.594 

.522 

.452 

.374 

.310 

.990 

.966 

.931 

.875 

.801 

. 718 

.635 

.548 

.465 

.378 

.311 

.241 

.984 

.962 

.920 

.857 

. 778 

.692 

.595 

.497 

.394 

.318 

. 243 

.175 

.117 

.981 

.952 

.904 

.835 

. 755 
42 

r/a 

0.50 2.4,-1 

1.8,-1 

1.3, -1 1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

.60 7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3,-1 

1. 0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

. 70 5.6, -1 4.2,-1 

0. 05 7. 5,1 

5. 6,1 

4. 2,1 

3.2, 1 2. 4,1 

1.8, 1 1.3, 1 1.0,1 

7.5,0 

5.6,0 

4. 2,0 

.10 1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8, 0 

1.3,0 

.15 1. 0,1 

7. 5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1.8, 0 

1.3,0 

1.0,0 

7.5, -1 

. 20 5.6,0 

4. 2,0 

3. 2,0 

2.4,0 

1.8,0 

1. 3, 0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 

. 25 4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 

.30 3.2,0 

2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-~ II r/a 

Oo=l80°; £,=0.15-Continued 

0.657 0. 70 

.551 

.431 

.341 

.254 

.179 

.118 

.073 

. 038 

.987 

.964 

.924 .80 

.868 

. 789 

.693 

.567 

.458 

.340 

.231 

.144 

.083 

.041 

.990 

.972 

Oo=l80°;! =0.20 Oo 

[Pl. 104] 

0. 990 0.30 

.980 

.967 

.952 

.938 

. 924 .35 

.909 

.895 

.879 

.861 

.839 

.978 

.954 

.929 

.899 

.869 

.842 

. 817 .40 . 789 

. 757 

.715 

. 983 

.962 

.928 

.887 

.845 

.802 

. 761 

.716 

.678 .45 

.631 

. 978 

.950 

. 910 

.857 

. 799 

. 734 

.685 

.633 

.579 

. 521 

. 985 .50 . 963 

.922 

.865 

. 787 

. 721 

.652 

.586 

.523 

.463 

.396 

. 988 

.966 .60 . 925 

.855 

. 785 

. 701 

. 616 

3.2,-1 

2. 4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

7.5,-3 

4. 2,-1 

3.2, -1 2.4, -1 1.8, -1 

2. 4, 0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3,-1 

1.0,-1 

7.5, -2 5.6, -2 4.2,-2 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0,-1 

7.5, -2 5.6,-2 

4.2,-2 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 

1-~ Bo 

0.942 

.894 

.827 

. 730 

.636 

. 519 

.395 

. 276 

.178 

. 098 

.045 

.980 

.957 

.922 

.865 

.805 

. 725 

.629 

.524 

.422 

.319 

• 226 

.140 

.088 

• 046 

0.537 

.468 

.397 

.327 

.988 

.965 

. 915 

.854 

. 769 

.673 

.577 

. 491 

.407 

.330 

.249 

.189 

.986 

.956 

.911 

.838 

. 745 

.641 

. 540 

. 438 

. 345 

.254 

.190 

.129 

.980 

. 951 

.896 

. 816 

.716 

.610 

. 494 

.383 

. 272 

.198 

.131 

.079 

.043 

. 975 

.938 

.876 

. 789 

.688 

.569 

.446 

. 315 

.223 

.143 

.083 

.043 

.983 

. 954 

. 902 

.830 

. 733 

. 617 

r/a 

0.60 

. 70 

0.05 

.10 

. 15 

.20 

. 25 

.30 

Tt 

;:28 

1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2, -2 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2,-2 

7. 5,1 

5.6, 1 4.2, 1 3. 2,1 

2. 4,1 

1. 8, 1 1.3, 1 1.0, 1 7.5,0 

5.6,0 

4. 2,0 

3. 2,0 

2. 4,1 

1. 8,1 

1.3, 1 1. 0,1 

7. 5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0, 1 7.5,0 

5.6,0 

4.2,0 

3. 2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

5.6,0 

4. 2, 0 

3. 2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4. 2,-1 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2. 4,-1 

1.8, -1 1.3, -1 

·-~ II r/a 

00=180°; £,=0.26-Continued 

0.472 0. 70 

.354 

.236 

.138 .80 

.070 

.031 

. 987 

. 964 

.925 

.864 

. 782 

. 666 

. 559 

.436 

. 314 

. 208 

.128 

[Pl. 105] 

0.988 0.35 

.976 

. 960 

.943 

.925 

.908 

.890 

.874 

.855 

.833 

.807 

. 780 

. 989 .40 . 973 

.945 

.915 

.879 

.843 

.811 

. 781 

. 747 

. 709 

.661 

.980 

.954 .45 

.914 

.865 

.814 

. 763 

.715 

.662 

.617 

.564 

.974 

.940 

.892 

.828 .50 . 759 

.682 

.625 

.566 

.504 

.440 

.982 

.955 

.906 

.838 

. 745 .60 

.668 

.587 

. 512 

.442 

.377 

.307 

.986 

.959 

.910 

.827 

. 743 . 70 

.644 

.546 

.458 

.383 

.309 

. 239 

.166 

Tt 

;:28 

2. 4,-2 

1.8,-2 

4.2, -1 3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 1.0,-1 

7.5,-2 

5.6, -2 4.2, -2 3.2, -2 2.4, -2 1.8,-2 

1.3,-2 

1.0, -2 7.5, -3 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2, -1 2. 4,-1 

1.8, -1 1.3, -1 1.0, -1 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2, -1 2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6, -2 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 

7.5, -1 5.6, -1 4. 2, -1 3.2,-1 

2. 4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2,-2 

5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

1-~ Bo 

0.068 

.031 

.990 

.974 

.945 

.900 

.830 

. 760 

. 671 

.572 

.472 

.381 

.292 

. 212 

.136 

. 086 

. 046 

0.986 

.958 

.898 

.825 

. 725 

.613 

.503 

.408 

.319 

. 242 

.166 

.114 

.984 

.947 

.893 

.807 

.696 

.577 

.463 

.353 

.258 

.171 

.115 

.068 

.976 

.941 

.875 

. 780 

.663 

.542 

.415 

.298 

.190 

.123 

.070 

.035 

.971 

.926 

.851 

. 749 

.632 

.499 

.367 

.235 

.150 

.082 

.039 

.980 

.944 

.882 

. 798 

.686 

.557 

.404 

.287 

.178 

.095 

.043 

.984 

.957 

.910 

.838 

. 744 

.617 

.507 

.386 
r/a 

0. 70 

.80 

0.05 

.10 

.15 

.20 

.25 

.30 

.35 

Tt 

128 

5.6, -2 4.2, -2 3.2, -2 2.4,-2 

1.8, -2 

4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 

7.5,1 

5.6, 1 4.2,1 

3. 2,1 

2.4,1 

1. 8,1 

1.3, 1 1.0, 1 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4, 1 1.8,1 

1.3, 1 1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

1.3, 0 

1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2, 0 

2.4,0 

1.8,0 

1.3, 0 

1.0, 0 

7.5,-1 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

4.2, 0 

3.2,0 

2.4,0 

1. 8,0 

1. 3, 0 

1. 0, 0 

7.5,-1 

5.6, -1 4.2,-1 

3.2, -1 2.4, -1 

3.2,0 

2.4,0 

1. 8, 0 

1. 3, 0 

1.0, 0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 

2.4, 0 

1.8, 0 

1. 3, 0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1. 8, -1 

·-~ II r/a 

11o= 180°; ~ =0.25-Continued 

0.274 0.85 

.182 

.113 

.062 

.029 

.988 

. 969 

.934 

.881 

.803 

9o=l80°; !=0.30 

Bo 

[Pl 106] 

0.986 0.35 

.972 

.954 .40 .935 

.914 

.895 

.874 

.856 

.835 

.809 

. 780 

. 749 

.987 

.970 

.937 .45 .902 

.861 

. 821 

. 784 

. 750 

.712 

. 670 

.616 

.977 

.947 

.902 . 50 .845 

. 788 

. 730 

.676 

.617 

.567 

. 509 

. 970 

.931 

.877 

.804 

. 725 .60 .640 

.576 

.511 

.445 

.377 

.979 

.948 

.893 

.815 

.710 

.623 . 70 .534 

.453 

.379 

.312 

.243 

.984 

.954 

.898 

.802 

. 708 

.597 

.491 

.396 .80 .318 

.244 

.178 

.113 

.984 

.952 

.883 

. 800 

.687 

.563 

.445 

.345 

.255 

.181 

Tt 

;:sa 

1.0,-1 

7.5, -2 5.6,-2 

4.2,-2 

3.2, -2 2.4, -2 1.8, -2 1.3,-2 

1.0,-2 

7.5, -3 

1. 3,-1 

1. o, -1 

1.8, 0 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1. 8, -1 1.3, -1 1. 0, -1 7.5, -2 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

1. 3, 0 

1. 0, 0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1. 8,-1 

1.3, -1 1. 0, -1 7.5, -2 5.6, -2 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4.2, -2 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5, -2 5.6, -2 4.2, -2 3.2,-2 

2.4,-2 

1. 8,-2 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6, -2 4.2, -2 3.2,-2 

2.4, -2 1.8,-2 

1.3, -2 1. 0,-2 

7.5,-3 

1-~ 80 

0. 727 

.636 

. 541 

.450 

.368 

.286 

. 210 

.136 

.086 

.046 

0.113 

.070 

. 981 

.940 

.878 

. 780 

.656 

.525 

.404 

. 290 

.197 

.118 

. 072 

.037 

.972 

.932 

.858 

. 750 

.620 

.489 

.356 

.239 

.137 

.080 

. 039 

. 989 

.966 

.916 

.830 

. 715 

.588 

.446 

.311 

. 183 

.107 

. 051 

. 020 

. 977 

. 936 

.866 

. 771 

.648 

. 512 

.358 

.247 

. 147 

. 076 

. 033 

.982 

.950 

.898 

.817 

. 714 

.583 

.473 

.359 

. 256 

.173 

.110 

. 061 

. 029 

.986 

.965 

.925 

• 866 

. 782 

. 704 

.616 

.526 

.441 

.364 

.285 

. 210 

.136 

. 086 

.046 

r/a 

0.05 

.10 

.15 

.20 

.25 

.30 

.35 

0. 05 

Tt 

128 

7.5,1 

5.6,1 

4.2, 1 3.2,1 

2.4,1 

1.8, 1 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,1 

1.8,1 

1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8, 0 

1. 3, 0 

1. 0,1 

7.5,0 

5.6, 0 

4.2, 0 

3. 2,0 

2.4,0 

1. 8, 0 

1.3,0 

1.0,0 

7.5, -1 

7.5,0 

5.6,0 

4.2, 0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

1.3, 0 

1. 0, 0 

7.5, -1 5.6,-1 

4.2,-1 

3.2, -1 2.4, -1 

3.2,0 

2.4,0 

1.8, 0 

1.3,0 

1. 0, 0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 

2.4, 0 

1.8, 0 

1.3, 0 

1. 0, 0 

7.5,-1 

5.6, -1 4.2, -1 3.2,-1 

7. 5,1 

5.6, 1 4.2, 1 3. 2,1 

2.4,1 

1. 8,1 

1.3, 1 1. 0,1 

rja 

(J 

8o=l80°; 80=0.35 

[Pl. 107] 

0.985 0.35 

.969 

.949 

.928 

.905 .40 .885 

.862 

.842 

.818 

. 790 

. 759 

.725 

.986 

.966 

.930 

,893 .45 

.848 

.803 

. 763 

. 726 

.684 

.639 

. 581 

.975 

.942 

.892 

.830 . 50 . 767 

. 703 

.645 

.582 

.529 

.467 

.989 

.967 

.924 

.864 

. 785 .60 

.699 

.606 

. 538 

.469 

.400 

.331 

.977 

.943 

.882 

. 796 

.682 . 70 

.589 

.494 

.409 

.333 

. 266 

.198 

.982 

.949 

.887 

. 783 

.680 

.561 

.448 .80 

.351 

.272 

.200 

.138 

. 081 

.982 

.948 

.872 

. 780 

.658 

.526 

.402 

.300 

8o=l80°; !=0.40 Bo 

[Pl. 108j 

0.984 0.05 

.967 

.946 

.923 

.899 

.877 .10 

.853 

.832 

43 

1-~ 80 

2.4,-1 0.211 

1.8, -1 .141 

1. 3, -·1 .081 

1. 0, -1 .046 

1.8,0 .979 

1.3, 0 .933 

1. 0, 0 .865 7.5, -1 . 759 

5.6,-1 .625 

4.2,-·1 .486 

3.2,-1 .361 

2.4,-1 .247 

1.8, -·1 .157 

1.3, -1 .086 

1.0,-1 .048 

1.3, 0 .970 

1.0,0 .926 

7.5,-1 .844 5.6,-1 • 726 

4.2,-1 .587 

3.2,-1 .450 

2.4,-1 .314 

1.8, -1 .200 1.3, -1 .105 

1. 0,-1 .056 

7.5,-2 • 024 

1.3,0 .988 

1.0,0 .963 

7.5,-1 .907 5.6,-1 .814 

4.2,-1 .689 

3.2,-1 .554 

2.4,-1 .408 

1.8, -1 .274 

1.3, -1 .152 

1.0, -1 .083 

7.5,-2 .035 

7.5,-1 .974 

5.6,-1 .930 

4.2, -1 .853 

3.2,-1 . 751 

2.4, -1 .620 

1.8, -1 .480 

1.3, -1 .329 

1.0,-1 .224 

7.5,-2 .132 

5.6, -2 .068 

4.2,-2 .030 

5.6,-1 .980 

4.2,-1 .945 

3.2,-1 .888 

2.4, -1 .801 

1. 8, -1 .693 

1.3, -1 .559 

1.0, -1 .453 

7.5, -2 .345 

5.6,-2 .249 

4.2,-2 .169 

3.2,-2 .109 

2.4,-2 .061 

1.8,-2 .029 

4.2, -1 .985 

3.2,-1 .961 

2.4,-1 .917 

1.8, -1 .855 

1.3, -1 . 767 1.0,-1 .689 

7.5,-2 .604 

5.6,-2 .519 

4.2,-2 .438 

3.2, -2 .363 

2.4, -2 .285 

1.8,-2 .210 

1.3,-2 .136 

1.0,-2 . 086 

7.5,-3 .046 

7.5,0 0.806 

5.6,0 . 776 4.2,0 . 743 

3.2,0 • 707 

2.4,1 .985 

1.8, 1 .964 

1.3, 1 .926 
44 

Tt 

riB rfa 

0.10 1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8, 0 

1.3,0 

.15 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4, 0 

1.8,0 

1.3, 0 

1. 0, 0 

7.5,-1 

.20 7.5, 0 

5.6,0 

4.2, 0 

3.2,0 

2.4,0 

1.8,0 

1.3, 0 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 

.25 4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3, 0 

1.0,0 

7.5,-1 

5.6,-1 

4. 2, -1 3.2,-1 

2.4, -1 

.30 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0, 0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

.35 2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4. 2,-1 

3. 2,-1 

2.4, -1 1.8,-1 

1.3, -1 1. 0,-1 

.40 1.8, 0 

1.3, 0 

0.05 7.5, 1 5.6,1 

4.2, 1 3.2, 1 2. 4,1 

1.8, 1 1. 3,1 

1.0, 1 7.5,0 

5. 6,0 

4. 2,0 

3.2,0 

.10 2.4, 1 1. 8, 1 1.3, 1 1.0, 1 7. 5,0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

1-!. 

II r/a Bo 

6o=l80°; ~=0.46--Continued 

0.885 0.40 

.837 

. 790 

. 747 

. 708 

.664 

.616 

.555 

.990 .45 .973 

.938 

.884 

.818 

. 752 

.684 

.623 

.556 

. 501 

.437 

.so 

.988 

.964 

.919 

.855 

. 771 

.680 

.582 

.511 

.440 

.369 

.299 .60 

.976 

.939 

.874 

. 783 

.662 

.564 

.465 

.378 

.302 

.235 

.170 • 70 

.981 

.946 

.880 

. 769 

.660 

.536 

.418 

.320 

. 241 

.171 

.113 

.062 

.981 .80 .944 

.863 

. 766 

.637 

.499 

.372 

.269 

.182 

.116 

.063 

.034 

.978 

.929 

6 6o=l80°; io=0.45 

[Pl. 109] 

0.983 0.10 

.966 

.944 

.920 

.895 

.872 

.847 

.825 .15 . 799 

. 768 

. 733 

.696 

.985 

• 963 

.923 

.881 

831 

Tt 1-!. riB IO 

1. 0, 0 0.857 

7.5,-1 . 743 

5.6,-1 .603 4.2,-1 .459 

3.2,-1 .331 

2.4,-1 .219 

1.8,-1 .133 

1.3,-1 .067 

1. 0,-1 .035 

1.3,0 .967 

1.0, 0 .921 

7.5,-1 .834 5.6,-1 • 709 

4.2,-1 .564 

3.2, -1 .423 2.4,-1 .287 

1.8,-1 .176 

1.3, -1 .087 

1. 0, -1 .043 

1.3,0 .987 

1. 0,0 .960 

7.5,-1 .901 

5.6,-1 .802 4.2,-1 .671 

3.2, -1 .531 

2.4,-1 .382 

1.8, -1 .250 1.3, -1 .134 

1.0,-1 .070 

7.5,-2 .028 

7.5,-1 .973 

5.6,-1 .925 

4.2,-1 .843 3.2,-1 .736 

2. 4, -1 .601 

1.8,-1 .460 1.3,-1 .312 

1.0, -1 .211 

7.5,-2 .125 

5.6, -2 • 065 

4.2,-2 . 029 

5.6,-1 .979 

4.2,-1 .942 3.2, -1 .881 

2.4,-1 . 789 

1.8,-1 .678 

1.3, -1 .545 

1.0,-1 .441 

7.5,-2 .338 

5.6,-2 .246 

4.2,-2 .168 

3.2, -2 .109 

2.4,-2 .061 

1.8,-2 .029 

4.2,-1 .984 3.2,-1 .958 

2.4, -1 .912 

1.8,-1 .846 

1.3,-1 . 757 

1.0,-1 .680 7. 5, -2 . 598 

5.6,-2 .516 

4.2,-2 .437 

3.2,-2 .363 

2.4,-2 .285 

1.8,-2 .210 

1.3,-2 .136 

1.0,-2 .086 7.5, -3 .046 

5.6,0 0. 782 

4.2,0 . 738 3. 2,0 .697 

2.4,0 .652 

1.8,0 .603 1.3,0 .540 

1.3, 1 .990 1.0, 1 .972 

7.5,0 . 936 

5.6,0 .880 4.2,0 .812 

3.2,0 . 743 

2.4,0 .673 

1.8,0 .609 1.3,0 .541 

1.0,0 .485 

7.5,-1 .420 

r/a Tt 

;:18 

0.20 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

. 25 4. 2,0 

3. 2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4. 2,-1 

3.2,-1 

2.4,-1 

.30 3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4. 2,-1 

3.2,-1 

2.4, -1 1.8, -1 1.3, -1 

.35 2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

.40 1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 

0.05 7.5,1 

5.6,1 

4. 2,1 

3. 2,1 

2.4, 1 1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

3. 2,0 

.10 2.4., 1 1. 8,1 

1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

1.3,0 

.15 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

1-!. 

II r/a IO 

6o= 180°; ~ =0.45-Continued 

0.988 0.45 .963 

.916 

.850 

. 762 

.668 

.568 

.495 

.422 

.351 

.281 . 50 

.975 

.937 

.869 

. 775 

.650 

.549 

. 448 

.360 

. 283 

. 217 

.154 .60 

.980 

.943 

.875 

. 760 

• 648 

.520 

.401 

.301 

.224 

.155 • 70 .100 

.053 

.980 

.942 

.858 

. 758 

. 625 

.483 

.354 

. 252 

.167 

.103 

.053 .80 

027 

.977 

.926 

.851 

. 734 

.590 

.443 

315 

.203 

.120 

.058 

.028 

6 8o=l80°; Do =0.50 

[Pl.llO] 

0.983 0.15 . 966 

.943 

. 919 

.894 

. 871 

.845 

.823 

. 796 .20 . 765 

. 730 

.693 

. 984 

. 962 

.922 

.880 

.829 

. 780 

. 735 

. 694 .25 . 648 

.598 

.535 

. 989 

. 971 

.935 

.879 

Tt 1-!. riB 80 

1.3,0 0.966 

1.0,0 .918 

7.5,-1 .827 

5.6,-1 .699 4. 2,-1 .550 

3.2,-1 .408 2. 4, -1 . 272 

1.8,-1 .163 

1.3, -1 .078 1.0,-1 .037 

1.3,0 .986 1.0,0 .959 

7.5, -1 .897 

5.6,-1 • 794 

4. 2,-1 .660 3.2,-1 .517 

2.4,-1 .368 1.8, -1 .237 

1.3, -1 .124 

1.0,-1 .063 7.5,-2 .025 

7.5,-1 .971 

5.6,-1 .922 4. 2,-1 .838 3.2,-1 . 727 

2.4,-1 .590 

1.8,-1 .449 

1.3, -1 .303 

1. 0,-1 .205 

7.5,-2 .122 

5.6,-2 .063 4.2, -2 .028 

5. 6, -1 .978 

4. 2, -1 .939 

3.2,-1 .876 

2.4,-1 . 782 

1.8,-1 .669 

1.3,-1 .537 

1.0,-1 .435 

7.5,-2 .334 

5.6,-2 .244 4.2,-2 .168 

3.2,-2 .108 

2.4,-2 .061 

1.8,-2 .029 

4. 2,-1 .983 3.2,-1 .957 

2.4,-1 • 909 1.8,-1 .842 

1.3,-1 . 751 

1.0,-1 .676 7.5,-2 .595 

5.6,-2 .515 

4.2,-2 .437 

3.2,-2 .363 

2.4,-2 .285 

1.8,-2 .210 

1.3,-2 .136 

1.0,-2 .086 

7.5,-'1 .046 

4.2,0 0.800 

3.2,0 . 739 

2.4,0 . 669 

1.8,0 .605 

1.3,0 .536 

1.0,0 .480 

7.5, -1 .414 

7.5,0 .988 

5.6,0 .963 4. 2, 0 . 915 

3. 2,0 .848 

2.4,0 . 759 

1.8,0 • 664 

1. 3,0 .563 

1. 0,0 .490 

7.5, -1 . 417 

5.6,-1 . 345 

4.2,-1 . 275 

4.2,0 .975 

3.2,0 .936 

2.4,0 .868 

1.8,0 . 772 

1.3,0 .646 

1.0,0 .544 

7.5,-1 .443 5.6, -1 .354 4.2,-1 .277 
r/a 

0.25 

.30 

.35 

.40 

.45 

0.05 

.10 

.15 

.20 

Tt 

128 

3.2, -1 2.4, -1 

3.2,0 

2.4,0 

1.8,0 

1.3, 0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1. 3,-1 

2.4,0 

1. 8, 0 

1. 3;0 

1. 0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 

1.8,0 

1.3,0 

1. 0,0 

7.5, -1 5.6,-1 

4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 

1. 3, 0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 

1.0,2 

7.5, 1 5.6, 1 4.2, 1 3.2,1 

2. 4, 1 1. 8, 1 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4. 2,0 

2. 4,1 

1.8, 1 1. 3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3, 1 1. 0,1 

7. 5,0 

5.6,0 

4.2,0 

3. 2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

7. 5,0 

5.6,0 

4.2, 0 

3. 2,0 

·-~ II r/a 

0.212 0.50 

.149 

. 980 

.943 

.874 

. 757 

. 644 

. 515 

.395 

. 296 

. 218 . 60 .150 

. 096 

. 050 

.980 

.941 

.856 

. 755 

.621 

.478 

.349 

. 246 . 70 

.162 

.099 

.050 

.025 

.977 

.925 

.849 

. 731 

.585 

.437 

.309 

.198 .80 

.116 

.055 

.027 

.966 

. 917 

.825 

.696 

.546 

.403 

. 267 

.159 

.075 

.035 

8o=360°; .!=0.05 

8o 

[Pl. lll] 

0.990 0.20 

.981 

.969 

. 956 

.945 

.934 

.926 

.917 

.910 . 25 .902 

.893 

.883 

.984 

. 970 

.951 

.933 

.915 

.898 

.884 

.872 .30 

.859 

.844 

.988 

.977 

.959 

.936 

. 911 

.888 

.866 

.846 

.824 .35 

.806 

. 783 

. 988 

.974 

.953 

. 928 

TABLES 

1. 3, 0 0.986 

1. 0,0 . 958 

7.5, -1 .896 

5.6,-1 . 792 

4.2,-1 .656 

3.2,-1 . 512 

2.4,-1 .363 

1.8, -1 .233 

1.3, -1 . 121 1.0, -1 .062 

7.5,-2 . 024 

7.5, -1 . 971 

5.6, -1 .921 

4.2,-1 .836 

3.2, -1 . 724 

2.4, -1 . 586 

1.8, -1 . 445 

1.3, -1 . 300 1. 0,-1 . 203 

7.5,-2 .121 

5.6,-2 .063 

4.2,-2 .028 

5.6,-1 .978 

4.2,-1 .939 

3.2,-1 .875 

2.4,-1 . 780 

1.8, -1 . 667 1.3, -1 .534 

1. 0,-1 .434 

7.5,-2 .334 

5.6,-2 . 244 4.2,-2 .168 

3.2,-2 .108 

2.4,-2 .061 

1. 8,-2 .029 

4.2, -1 .983 

3.2,-1 .956 

2.4,-1 .908 

1. 8,-1 .840 

1. 3,-1 . 749 

1.0, -1 . 674 

7.5, -2 . 594 

5.6,-2 .514 

4.2, -2 .437 

3.2, -2 .363 

2.4, -2 . 285 

1. 8,-2 .210 

1.3, -2 .136 

1. 0, -2 .086 

7.5, -3 .046 

2.4,0 0.898 

1.8,0 .867 

1.3,0 .834 

1. 0,0 .810 

7.5,-1 . 784 

5.6,-1 . 756 

4.2,-1 . 725 

4. 2,0 .981 

3.2,0 .963 

2.4,0 .937 

1.8,0 .905 

1.3,0 .864 1.0,0 .830 

7.5, -1 . 794 

5.6, -1 . 760 

4.2, -1 . 726 

3.2,-1 .691 

2.4, -1 . 650 

3. 2,0 . 985 

2.4,0 .967 

1.8,0 .942 

1.3,0 .903 1.0,0 .865 

7.5, -1 .822 

5.6, -1 . 777 4.2,-1 . 734 

3.2,-1 . 694 

2.4, -1 . 651 

1.8, -1 .603 

2.4,0 .985 1. 8, 0 .968 

1. 3,0 .937 

1.0,0 .904 7.5, -1 .860 

5.6,-1 .810 

4.2, -1 . 758 

3.2, -1 . 708 

r/a 

0.35 2.4, -1 1.8, -1 1.3, -1 1.0,-1 

.40 1.8, 0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8,-1 

1.3, -1 1.0,-1 

7.5, -2 

.45 1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 

.50 1.3,0 

1. 0,0 

7.5,-1 

5.6, -1 4.2, -1 3.2, -1 2.4, -1 1.8, -1 1.3, -1 1.0,-1 

7.5, -2 5. 6, -2 4. 2,-2 

3.2, -2 2. 4,-2 

0.05 1. 0, 2 7.5, 1 5.6, 1 4.2,1 

3.2,1 

2.4,1 

1. 8.1 

1.3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

.10 3.2,1 

2.4, 1 1. 8,1 

1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1.3,0 

.15 1.3, 1 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

1.3,0 

1. 0,0 

7.5,-1 

.20 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.80 

·-f. II r/a 

(J 

8o=360°; io =0.05-Continued 

0.657 0.60 

.605 

.543 

.489 

.984 

.963 

.937 

.898 

.849 

• 794 

. 737 

.676 

. 615 

. 546 

.490 

.425 . 70 

. 980 

. 961 

.931 

.888 

.836 

. 778 

. 710 

.639 

.559 

.496 

.427 

.356 

.990 

.977 .80 

.955 

.922 

.876 

.822 

. 755 

.679 

.587 

.514 

.435 

.359 

.287 

. 222 

.158 

8 8o=360°; 9o=O.lO 

[Pl.ll2] 

0.979 0.20 

.962 

.939 

.914 

.891 

.871 

.854 .25 

.838 

.825 

.809 

. 792 

. 772 

. 752 

.986 

.968 

.941 

.903 

.869 

.833 .30 .802 

. 775 

. 753 

. 728 

. 700 

.665 

.977 

.955 

.920 

.875 

.827 

. 783 .35 . 742 

. 705 

.666 

.633 

.593 

.976 

.949 

• 908 

.860 

.802 

. 744 

45 

1-.!. Bo 

7.5, -1 0.984 

5.6, -1 .966 4. 2,-1 .939 

3.2,-1 .902 

2. 4, -1 .849 

1.8, -1 . 782 

1.3, -1 .689 

1.0, -1 .603 7.5,-2 .504 

5.6,-2 .403 4.2, -2 .310 

3.2,-2 .232 

2.4,-2 .161 

1.8,-2 .104 

1.3,-2 .055 

5.6,-1 .988 

4.2, -1 .974 

3.2,-1 .954 

2.4, -1 .922 

1.8, -1 .877 

1.3, -1 .808 1.0, -1 . 737 

7.5,-2 .644 

5.6, -2 .536 

4.2,-2 .422 

3.2, -2 .316 2.4,-~ . 214 1.8, -2 .131 

1.3, -2 .065 

1.0,-2 . 032 

3.2, -1 .982 

2.4, -1 . 967 

1.8, -1 . 943 

1.3, -1 • 904 

1.0, -1 .861 

7.5, -2 . 799 

5.6, -2 . 720 4. 2, -2 .627 

3.2, -2 .527 

2.4,-2 . 413 

1. 8, -2 .301 

1.3,-2 .187 

1. 0,-2 , 114 7.5,-3 .058 

1.3,0 0.684 

1.0,0 .640 

7.5,-1 .595 

5.6,-1 .548 

4.2, -1 .497 

5.6, 0 .984 

4.2,0 .962 

3.2,0 .928 

2.4,0 .878 

1.8,0 .816 

1.3,0 . 739 

1.0,0 .677 7.5, -1 .614 

5.6, -1 .555 

4.2, -1 .499 

3.2, -1 .445 

2.4,-1 .384 

4.2,0 .988 

3.2,0 .970 

2.4,0 .936 

1.8,0 .886 1.3,0 . 812 

1.0, 0 . 742 

7.5, -1 .663 

5.6,-1 .585 4.2,-1 .513 

3.2,-1 .450 2.4,-1 .385 

1.8, -1 .320 

3.2,0 .989 

2.4,0 .971 

1.8,0 .937 

1.3,0 .878 

1.0,0 .815 

7.5,-1 • 733 5.6,-1 .642 

4.2,-1 .553 

3.2, -1 .473 

2.4, -1 .395 

1.8, -1 .323 

1.3,-1 .246 

1.0 -1 .187 
46 

r/a 

0.40 

.45 

.50 

,. 

0.05 

.10 

.15 

.20 

Tt 

fiB 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6,-2 

4.2,-2 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6, -2 4.2, -2 

1.3,2 

1.0,2 

7.5,1 

5.6,1 

4.2,1 

3.2,1 

2.4,1 

1. 8,1 

1.3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

3.2,1 

2.4,1 

1. 8,1 

1. 3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1. 3, 0 

1.8, 1 1.3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1. 3, 0 

1.0,0 

7.5, -1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-~ II r/a 

(J 

8o=360°; ~=0.1~ontinued 

0.988 0.60 

.969 

.928 

.877 

.805 

.715 

. 617 

.522 

.426 

.338 

.250 

.188 

.129 

.986 . 70 

.960 

.924 

.866 

. 787 

.692 

.592 

.482 

.376 

.269 

.196 

.131 

.079 

.043 .80 

.980 

.956 

.913 

.849 

. 766 

.670 

.557 

.439 

.311 

.222 

.142 

.083 

.043 

8o=360°;!!.. =0.15 8o 

{Pl. 113] 

0.986 0. 20 

.970 

.944 

.910 

.874 

.842 

.812 

. 789 .25 . 766 

. 747 

. 726 

. 701 

.675 

.647 

.979 

.953 

.914 

.859 

.810 

. 759 .30 

.715 

.679 

.648 

.615 

.579 

.534 

.989 

.967 

.934 

.883 

.820 

. 752 

.690 .35 

.634 

.585 

.535 

.494 

.446 

.987 

.965 

.925 

.866 

. 797 

.717 

Tt 

T2s 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 

5.6,-1 

4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5, -2 5.6, -2 4.2, -2 3.2,-2 

2.4,-2 

1.8, -2 

4.2,-1 

3.2, -1 2.4,-1 

1.8,-1 

1.3, -1 1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 2.4,-2 

1.8, -2 1.3,-2 

1.0, -2 7.5,-3 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8, 0 

1. 3,0 

1.0,0 

7.5,-1 

5.6, -1 4.2, -1 3.2, -1 2.4,-1 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2,-1 

3.2, -1 2.4,-1 

1.8, -1 1.3, -1 

3.2,0 

2.4,0 

1.8,0 

1. 3, 0 

1.0,0 

7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 

1-!. so 

0.988 

.969 

.934 

.882 

.814 

.721 

.600 

.468 

.353 

.236 

.138 

.070 

.031 

.976 

.950 

.911 

.853 

. 774 

.662 

.558 

.435 

.314 

.208 

.128 

.068 

.031 

.983 

.965 

.936 

.894 

.827 

. 759 

.671 

.572 

.472 

.381 

.292 

.212 

.136 

.086 

.046 

0.638 

.558 

.503 

.448 

.393 

.336 

.977 

.945 

.896 

.824 

. 737 

.632 

.551 

.471 

.401 

.338 

.281 

.222 

.982 

.955 

.907 

.836 

. 732 

.638 

.535 

.438 

.355 

.287 

.223 

.165 

.106 

.984 

.957 

.909 

.825 

. 737 

.628 

.512 

.404 

.314 

.234 

.168 

.107 

.067 

r/a 

0.40 2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2, -1 2.4,-1 

1.8, -1 1. 3,-1 

1.0, -1 7.5, -2 

.45 1.8,0 

1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

.50 1.3,0 

1.0,0 

7.5, -1 5.6, -1 4.2, -1 3.2,-1 

2.4, -1 1.8, -1 1.3, -1 1.0, -1 7.5, -2 

.60 1.0,0 

7.5, -1 

0.05 1.3,2 

1.0,2 

7.5, 1 5.6,1 

4.2, 1 3.2,1 

2.4,1 

1.8,1 

1.3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

.10 4.2, 1 3.2, 1 2.4, 1 1.8,1 

1. 3,1 

1. 0,1 

7. 5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

.15 1.8, 1 1.3, 1 1.0, 1 7. 5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1. 3,0 

1.0,0 

7.5,-1 

.20 1.0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

·-~ II r/a 

0.983 0.60 

.954 

.895 

.824 

. 725 

.6(\7 

.484 

.373 

.269 

.184 

.111 

.069 . 70 

.036 

.979 

• 942 

.890 

.809 

. 703 

.580 

.459 

.335 

.226 

.131 

.077 

.038 

.80 

.970 

.936 

.875 

. 787 

.677 

.557 

.425 

.298 

.177 

.103 

.050 

.982 

.954 

8 8o=360°; Bo =0.20 

[Pl. 114] 

0.981 0.20 

.961 

.928 

.884 

.838 

. 797 .25 • 760 

. 731 

. 702 

.680 

.653 

.624 

.593 

.560 

.990 

.973 

.940 

.890 .30 

.819 

. 758 

.695 

.641 

.598 

.562 

.523 

.483 

.433 

.986 

. 957 

.915 

.851 .35 . 770 

.687 

.612 

.545 

.490 

• 434 

.390 

.340 

.983 

.955 

.904 

.830 

. 744 .40 

.646 

.552 

.461 

1-!. Bo 

5.6,-1 0.906 

4.2,-1 .834 3.2,-1 . 743 

2.4, -1 .628 

1.8,-1 .499 

1.3, -1 .352 

1.0, -1 .244 

7.5,-2 .146 

5.6,-2 .076 

4.2, -2 .033 

7.5,-1 .987 

5.6, -1 .966 4.2,-1 .928 

3.2,-1 .875 

2.4,-1 . 798 

1.8, -1 . 702 

1.3, -1 .576 

1.0,--1 .470 

7.5,-2 .358 

5.6,-2 .256 

4.2,-2 .172 

3.2,-2 .110 

2.4, -2 .061 

1.8, -2 .029 

4.2,-1 .975 

3.2, -1 .950 

2.4,--1 .911 

1.8, -1 .856 

1.3, -1 . 776 1.0, -1 . 701 

7.5, -2 .614 

5.6, -2 .526 

4.2, -2 .441 

3.2, -2 .364 

2.4, -2 .285 

1.8,-2 .210 

1.3, -2 .136 

1.0, -2 .086 7.5, -3 .046 

1.0,0 0.401 

7.5,-1 .343 

5.6,-1 . 288 

4.2,-1 .234 

5.6,0 .971 

4.2,0 .929 

3.2,0 .867 

2.4,0 . 777 

1.8,0 .671 

1.3,0 .547 

1.0,0 .455 

7.5,-1 .369 

5.6,-1 . 297 

4.2,-1 .236 

3.2,-1 .185 

2.4,-1 .135 

4. 2,0 .977 

3.2,0 .943 

2.4,0 .881 

1.8,0 . 792 

1.3,0 .667 1.0,0 .557 

7.5,-1 .441 

5.6,-1 .337 

4. 2,-1 . 254 

3.2,-1 .191 

2.4,-1 .136 

1.8, -1 .091 

1.3,-1 .051 

3.2,0 .979 

2. 4, 0 .945 

1.8,0 .884 

1.3,0 . 780 

1. 0,0 .674 

7.5,-1 .547 

5.6,-1 .419 

4.2,-1 .307 

3.2,-1 . 219 

2.4, -1 .148 

1.8,-1 .094 

1.3,-1 .051 

1.0,-1 .028 

2. 4, 0 .978 

1. 8,0 .941 

1. 3,0 .867 

1. 0, 0 . 780 
r/a 

0.40 7.5, -1 5.6,-1 

4.2,-1 

3.2,-1 

2.4, -1 1.8,-1 

1.3, -1 1.0,-1 

.45 1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 1.0,-1 

. 50 1.8,0 

1.3,0 

1.0,0 

7.5, -1 5. 6,-1 

4. 2,-1 

3.2,-1 

2.4,-1 

1.8, -1 1.3, -1 1.0, -1 7.5,-2 

. 60 1. 0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

0.05 1.3,2 

1.0,2 

7.5,1 

5.6, 1 4.2, 1 3. 2,1 

2.4,1 

1. 8,1 

1.3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

.10 4. 2,1 

3. 2,1 

2.4,1 

1.8,1 

1.3, 1 1.0, 1 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

.15 1. 8,1 

1. 3,1 

1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

. 20 1. 0,1 

7.5,0 

5. 6,0 

4. 2,0 

3. 2,0 

2.4,0 

1. 8,0 

1. 3,0 

1.0,0 

,_~ II 

8 Bo=360°; eo=0.26-Continued 

0. 661 0.60 

.526 

.394 

. 282 

.184 

.111 

. 056 

.029 . 70 

.973 

.926 

.861 

. 762 

.637 

.502 

.374 

.252 

.154 

.076 

.037 

.989 

.962 

.918 .80 

.843 

. 737 

. 611 

.482 

.348 

. 228 

.122 

.064 

. 026 

.977 

.942 

.881 

. 795 

.692 

[Pl. 115] 

0.978 0.20 

.953 

.913 

.862 

.807 . 25 . 758 

.715 

.681 

.649 

.623 

.594 

.561 

.527 

.492 

.988 

.967 

.928 

.869 .30 . 785 

.714 

.641 

.580 

.532 

. 493 

. 453 

.411 

.360 

.983 

.948 

.899 

.823 .35 . 729 

.633 

.550 

.477 

.418 

.361 

.318 

. 269 

.980 

• 946 

.885 

. 798 .40 

.699 

. 589 

.486 

.390 

.328 

Tt 

TiS 

2.4, -1 1.8, -1 1.3,-1 

1.0, -1 7.5,-2 

5.6,-2 

4.2,-2 

7.5,-1 

5.6,-1 

4. 2,-1 

3.2, -1 2.4,-1 

1.8,-1 

1. 3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 

5.6,-1 

4.2, -1 3.2, -1 2. 4, -1 1.8, -1 1.3, -1 1. 0,-1 

7.5,-2 

5.6,-2 

4.2, -2 3.2,-2 

2.4,-2 

1.8,-2 

1.3,-2 

1.0,-2 

7.5,-3 

7.5, -1 5.6,-1 

4. 2,-1 

7.5,0 

5.6,0 

4.2,0 

3. 2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

4.2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1. 0,0 

7.5,-1 

5.6, -1 4.2,-1 

3.2,-1 

2. 4,-1 

1.8, -1 1.3, -1 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 

47 

1-~ Bo r/a r/a 1-~ Bo 

8 Bo=360°; BO =0.25--Continued 

0. 567 

.438 

.301 

.205 

.123 

.064 

0.40 4. 2,-1 0.337 0.60 1.8,-1 0.407 

3.2,-1 .229 1.3, -1 .279 

2.4,-1 .139 1.0,-1 .192 

1.8,-1 .077 7.5,-2 .117 

1.3,-1 .034 5.6,-2 .062 

4.2,-2 .028 

.029 

.983 

.956 

.910 

.846 

• 759 

.657 

. 534 

.436 

.336 

. 245 

.168 

.108 

.061 

.029 

.987 

.968 

.938 

.891 

.829 

. 747 

.675 

. 595 

. 516 

.437 

.363 

. 285 

.210 

.136 

.45 1.8,0 .968 . 70 7.5,-1 .980 1.3,0 .912 5.6,-1 .948 1.0,0 .837 4.2,-1 .895 7.5,-1 . 726 3.2,-1 .825 5.6,-1 .590 2.4,-1 . 733 4.2,-1 .450 1.8, -1 .632 3.2,-1 .324 1.3, -1 .514 2.4, -1 .209 1.0,-1 .423 1.8, -1 .120 7.5,-2 .329 1.3, -1 .054 5.6,-2 .243 1.0,-1 .024 4.2,-2 .168 

.50 1. 8, 0 .987 3.2,-2 .108 

1.3,0 .954 2.4,-2 .061 

1.0,0 .903 1.8,-2 .029 

7.5, -1 . 817 .80 5.6,-·1 .985 

5.6,-1 . 700 4.2,-1 .963 

4.2,-1 • 566 3.2,-1 .928 

3.2,-1 .435 2.4,-1 .876 

2.4,-1 .305 1.8,-1 .812 

1.8,-1 .195 1.3, -1 . 731 

1.3,-1 .101 1.0,-1 .664 

1.0,-1 .051 7.5,-2 .590 

7.5,-2 .020 5.6,-2 .513 

4.2,-·2 .437 

.60 1.0,0 .972 3.2,-2 .363 

7.5, -1 .931 2.4,-2 .285 

5.6,-1 .862 1.8,-2 .210 

4.2,-1 . 766 1.3,-·2 .13.6 

3.2,-1 .657 1.0,-2 .086 

2.4,-1 .531 7.5,-3 .046 

.086 

.046 

[Pl.ll6] 

0.272 

. 220 

.173 

.989 

.965 

.916 

.842 

. 738 

.619 

.483 

0.05 1.3,2 0.974 0.25 7.5,0 0.988 

1.0,2 .947 5.6,0 .960 

7.5, 1 .901 4.2,0 .904 

5.6, 1 .843 3.2,0 .822 

4.2, 1 . 781 2.4,0 . 708 

3.2, 1 . 726 1.8,0 .579 

2.4, 1 .678 1.3,0 .437 

1. 8,1 .641 1.0,0 .338 

1.3, 1 .606 7.5,-1 .252 

1.0, 1 .578 5.6, -1 .187 

7.5,0 .547 4.2,-1 .138 

5.6,0 .512 3.2, -1 .100 

4.2,0 .476 2.4,-1 .067 

.386 

.299 3.2,0 .440 

.30 4.2,0 .968 

.229 

.175 

.131 

.090 

.972 

.931 

.859 

. 756 

.615 

.496 

.10 4.2,1 .986 3.2,0 .922 

3.2,1 .963 2.4,0 .841 

2.4,1 . 917 1. 8, 0 . 728 

1. 8,1 .851 1.3,0 .577 

1.3, 1 . 757 1.0,0 .453 

1.0, 1 .678 7.5, -1 .330 

7.5,0 .598 5.6, -·1 .230 

5.6,0 .533 4.2, -·1 .156 

4.2,0 .482 3.2,-1 .106 

3.2,0 .442 2.4, -·1 .068 

2.4,0 .400 1. 8,-1 .041 

.375 

. 272 

.193 

.137 

.092 

. 057 

.029 

.975 

.934 

.862 

. 743 

.625 

.489 

.357 

. 247 

.165 

.103 

.060 

.030 

.973 

.930 

.843 

1. 8, 0 .358 

1.3,0 .309 . 35 3.2,0 .972 

.15 1.8, 1 . 981 2.4,0 .925 

1.8,0 .845 1.3, 1 .941 1.3,0 . 714 1.0, 1 .885 1. 0, 0 .589 7.5,0 .800 7.5, -1 .448 5.6,0 .696 5.6, -·1 . 317 4.2,0 . 591 4.2,-1 . 210 3.2,0 .502 3.2, -·1 .135 2.4,0 .425 2.4, .,..1 .079 1.8,0 .366 1.8, -1 .044 1. 3,0 .310 

1. 0, 0 .268 .40 2.4,0 .969 7.5, -1 .223 1.8,0 .921 

.20 1. 0,1 .977 1.3,0 .824 

7.5,0 .939 1.0,0 . 716 

5.6,0 .870 7.5, -·1 .578 

4.2,0 . 773 5.6, -1 .433 

3.2,0 .664 4.2, -1 .302 

2.4,0 .545 3.2, -1 .199 

1.8,0 .437 2.4,-1 .116 

1.3,0 .339 1. 8, -·1 .061 

1.0,0 .279 1.3, -1 .025 

. 744 

.613 

.471 

7.5, -1 .225 

5.6,-1 .178 .45 2.4,0 .989 

4.2, -1 .136 1.8,0 .964 
48 

r/a 

0.45 1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 

3.2,-1 

2.4,-1 

1.8, -1 

1. 3,-1 

.50 1. 8, 0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 

4.2, -1 

3.2,-1 

2.4,-1 

1. 8,-1 

1.3, -1 

1.0, -1 

.60 1.3,0 

1.0,0 

7.5, -1 

5.6, -1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

1.3, -1 

1.0, -1 

7.5,-2 

0.05 1.3,2 

1.0,2 

7.5,1 

5.6,1 

4.2,1 

3. 2,1 

2.4, 1 

1.8, 1 

1.3, 1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

.10 4. 2,1 

3. 2,1 

2.4,1 

1. 8,1 

1. 3,1 

1.0, 1 

7. 5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

.15 1. 8,1 

1. 3,1 

1.0, 1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1. 0,0 

7.5, -1 

.20 1. 0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3, 0 

1.0,0 

7.5,-1 

5.6,-1 

4.2,-1 

.25 7.5,0 

5.6,0 

4.2,0 

3.2,0 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPE-D AQUIFERS DRAINED BY STREAMS 

·-~ II rfa 

(J 

6o=360°; 8o =0.3Q-Continued 

0.901 0.60 

.818 

.698 . 70 .558 

.417 

.294 

.185 

.104 

.045 

.985 

.948 

.891 

. 797 

.673 

.536 

.407 

.283 .so 

.178 

.091 

.046 

.989 

.968 

.922 

.846 

. 745 

.634 

.511 

.391 

.270 

.187 

.114 

o. 972 0.25 . 941 

.891 

.827 

. 760 

. 701 

.650 

.610 

.573 

.544 .30 .511 

.476 

.440 

.403 

.985 

. 959 

.909 

.837 

. 735 

.650 

. 566 

.498 

.446 .35 .404 

.363 

. 322 

.274 

.979 

.935 

.874 

. 782 

.671 

.560 

.467 

.389 .40 

.329 

.275 

.235 

.193 

. 975 

.933 

.858 

. 754 

.638 

.513 

.403 .45 

.305 

. 246 

.195 

.152 

.114 

• 986 

.956 

.895 

.806 

Tt 

,., 

5.6,-2 

4.2,-2 

7.5, -1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

1.3, -1 

1.0, -1 

7.5,-2 

5.6, -2 

4.2,-2 

3.2,-2 

2.4,-2 

1.8, -2 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

1.3, -1 

1.0, -1 

7.5,-2 

5.6,-2 

4.2,-2 

3.2, -2 

2.4,-2 

1.8, -2 

1.3,-2 

1.0,-2 

7.5,-3 

2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

5.6, -1 

4.2,-1 

3.2,-1 

2.4,-1 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

5.6,-1 

4. 2, -1 

3.2,-1 

2. 4,-1 

1.8, -1 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2.-1 

3.2;-1 

2.4,-1 

1.8,-1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4. 2, -1 

3.2, -1 

2.4, -1 

1.8, -1 

1.3, -1 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5, -1 

5.6,-1 

4.2,-1 

3.2,-1 

2. 4,-1 

1.8, -1 

1.3 -1 

0.061 

.028 

.977 

.941 

.884 

.810 

. 717 

.618 

.505 

.418 

.327 

.242 

.167 

.108 

.061 

.029 

.983 

.958 

.920 

.866 

.802 

. 724 

.659 

.587 

.513 

.436 

.363 

.285 

.210 

.136 

.086 

.046 

0.685 

.550 

.404 

.306 

.223 

.161 

.116 

.083 

.054 

.990 

.965 

.915 

.827 

. 707 

.550 

.423 

.301 

.204 

.134 

.089 

.055 

.032 

.969 

.918 

.831 

.693 

• 564 

.421 

.291 

.189 

.117 

.067 

.036 

.966 

. 913 

.810 

.696 

.555 

.410 

. 281 

.181 

.103 

.052 

.021 

.988 

.960 

.892 

.804 

.679 

.536 

.396 

.277 

.173 

.095 

.040 

r/a 

0.50 1. 8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 

4. 2, -1 

3.2,-1 

2.4,-1 

1.8, -1 

1.3, -1 

1.0, -1 

.60 1.3,0 

1.0,0 

7.5, -1 

5.6, -1 

4. 2, -1 

3.2,-1 

2.4,-1 

1.8,-1 

1.3, -1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2,-2 

. 70 7.5,-1 

5.6,-1 

4.2,-1 

0.05 1.3,2 

1.0,2 

7.5,1 

5.6, 1 

4. 2,1 

3.2,1 

2.4,1 

1.8,1 

1.3,1 

1.0, 1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

.10 4.2, 1 

3.2,1 

2.4, 1 

1.8,1 

1.3,1 

1.0,l 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1.3,0 

.15 1. 8,1 

1.3,1 

1.0,1 

7.5,0 

5.6,0 

4. 2,0 

3. 2,0 

2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5,-1 

.20 1.0,1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4. 2,-1 

. 25 7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

·~ II r/a 

(J 

6o=360°; 8o =0.35--Continued 

0.983 0. 70 

.943 

.882 

. 782 

.654 

.517 

.391 

.270 

.170 

.087 

.043 

.988 .so .965 

.916 

.835 

. 731 

.619 

.499 

.383 

.266 

.185 

.114 

.061 

.028 

.975 

.936 

.875 

6o=360°; !=0.40 

fJo 

[Pl.118] 

0.970 0.25 

.937 

.884 

.817 

. 745 

.684 

.630 

.588 .30 

.550 

.520 

.487 

.451 

.415 

.378 

.984 

.956 

.904 

.827 

• 720 

.631 .35 .544 

.473 

.421 

.380 

.339 

.298 

.252 

.977 

.931 

.866 

. 769 .40 .653 

.538 

.444 

.365 

.306 

.253 

.214 

.174 

.973 

.928 

.849 .45 . 740 

.620 

.492 

.380 

.283 

.225 

.177 

.136 

.101 

.985 

.953 .50 

.889 

. 795 

.669 

.531 

.384 

1-!.. 80 

3. 2,-1 0. 799 

2.4,-1 . 707 

1.8,-1 .610 

1.3,-1 .501 

1.0,-1 .416 

7.5,-2 .326 

5.6,-2 .242 

4.2,-2 .167 

3.2,-2 .108 

2.4, -2 .061 

1.8, -2 .029 

5.6, -1 .981 

4.2, -1 .954 

3.2,-1 .915 

2.4, -1 .859 

1.8,-1 • 796 

1.3, -1 . 720 

1.0, -1 .657 

7.5,-2 .587 

5.6,-2 .512 

4.2,-2 .436 

3.2,-2 .363 2.4, -2 .285 1.8, -2 .210 

1.3,-2 .136 

1.0, -2 .086 7.5,-3 .046 

1.0,0 0.286 

7.5,-1 .204 

5.6,-1 .145 

4.2,-1 .103 

3.2,-1 .073 

2.4,-1 .047 

5.6,0 .989 4.2,0 .963 

3.2,0 .909 

2.4,0 .817 

1.8,0 .693 

1.3,0 .532 

1.0,0 .405 

7.5,-1 .283 5.6,-1 .188 

4.2, -1 .122 

3.2,-1 .079 

2.4, -1 .048 

3.2,0 .967 

2.4,0 .913 

1.8,0 .822 

1.3,0 .679 

1.0,0 .548 

7.5,-1 .404 

5.6,-1 .276 

4.2,-1 .176 

3.2,-1 .108 

2.4,-1 .060 

1. 8, -1 .031 

3.2,0 .990 

2.4,0 .964 

1. 8,0 .908 

1. 3,0 .800 

1.0,0 .683 

7.5,-1 .540 5.6, -1 .395 

4.2,-1 .268 3.2,-1 .171 

2.4,-1 .096 

1.8, -1 .048 

2.4,0 .987 

1.8,0 .957 

1.3,0 .885 

1.0,0 • 794 

7.5, -1 .666 5.6,-1 .522 

4.2,-1 .384 

3.2,-1 .267 

2.4,-1 .166 

1.8, -1 .091 

1.3,-1 .038 

1. 8,1! .982 

1.3,C' .940 

1.0,C .875 

7.5,-1 • 772 

5.6,-1 .642 

4.2,-1 . 506 
r/a 

0.50 3.2,-1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0,-1 

.60 1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4. 2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

1.3,-1 

1.0,-1 

7.5,-2 

5.6,-2 

4.2, -2 

• 70 7.5,-1 

5.6,-1 

4.2,-1 

3.2,-1 

2.4,-1 

1.8, -1 

0.05 1.3,2 

1.0,2 

7.5,1 

5. 6,1 

4. 2,1 

3.2,1 

2.4,1 

1.8, 1 

1.3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

.10 4.2, 1 

3. 2,1 

2.4, 1 

1. 8,1 

1.3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1.3,0 

.15 1.8,1 

1.3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5,-1 

.20 1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1. 8,0 

1.3,0 

1.0,0 

7.5, -1 

5. 6,-1 

4.2,-1 

.25 7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

·-}. II r/a 

0.381 o. 70 

.263 

.166 

.085 

.042 

.987 

.963 

.911 

.827 .80 • 722 

.611 

.492 

.379 

.263 

.184 

.113 

.061 

.028 

.973 

.933 

.870 

.793 

• 701 

.606 

9o=360°; £ =0.45 

[Pl. 119] 

0.969 

I 

0.25 

.935 

.880 

.()10 

• 737 .30 

.673 

.618 

.575 

.536 

.507 

.473 

.437 

.400 

.364 

.983 

.954 

.000 .35 .820 

• 711 

.619 

.530 

.459 

.406 

.365 

.325 

.285 

.239 

.976 

.928 .40 

.862 

• 761 

.642 

.526 

.430 

.351 

.293 

.241 

.203 

.164 

.972 .45 .926 

.844 

.732 

.609 

.480 

.367 

.270 

.214 

.167 

.128 

.095 

.50 

.985 

.951 

.885 

. 789 

.660 

.520 

.372 

.275 

.194 

.137 

TABLES 

1-.!. Bo 

1.3,-1 0.499 

1.0,-1 .414 

7.5, -2 .326 

5.6,-2 .242 

4.2,-2 .167 

3.2,-2 .108 

2.4, -2 .061 

1.8, -2 .029 

5.6,-1 .980 

4.2,-1 .952 

3.2,-1 .911 

2.4, -1 .855 

1.8, -1 • 793 

1.3,-1 . 718 

1.0,-1 .656 7.5,-2 .586 

5. 6,-2 .512 

4.2,-2 .436 

3.2,-2 .363 2.4, -2 .285 1.8,-2 .210 

1.3,-2 .136 

1.0,-2 .086 7.5,-3 .046 

4.2,-1 0.097 

3. 2, -1 .068 

2.4, -1 .044 

5.6,0 .989 

4. 2,0 .961 

3.2,0 .906 

2.4,0 .811 

1.8,0 .684 

1.3,0 .521 

1.0,0 .394 

7.5,-1 .274 

5.6,-1 .180 

4. 2, -1 .115 

3. 2,-1 .074 

2.4,-1 .045 

4.2,0 .990 3.2,0 .966 2.4,0 .910 

1. 8,0 .816 

1.3,0 .671 

1.0,0 .538 7.5,-1 .395 5. 6, -1 .268 4. 2, -1 .169 

3.2,-1 .102 

2.4,-1 .056 

1.8, -1 .029 

3.2,0 .989 

2.4,0 .963 

1.8,0 .905 

1.3,0 • 794 

1.0,0 .675 

7.5,-1 . 531 

5.6,-1 .387 4.2,-1 .262 

3.2,-1 .166 

2. 4,-1 .093 1.8, -1 .045 

2.4,0 .987 

1. 8,0 .956 1.3,0 .882 

1.0,0 • 788 

7.5,-1 .659 

5.6,-1 .515 

4. 2, -1 .378 

3.2,-1 .262 

2.4, -1 .162 

1. 8, -1 .089 

1.3,-1 .037 

1.8,0 .982 

1.3,0 .938 1.0,0 .871 

7.5, -1 . 766 

5. 6, -1 .636 4.2, -1 .500 3.2,-1 .376 

2.4,-1 .260 1.8, -1 .163 

1.3,-1 .083 1.0,-1 .042 

r/a 

0.60 

. 70 

0.05 

.10 

.15 

.20 

.25 

Tt 

;a; 

1.3,0 

1.0,0 

7.5,-1 

5.6, -1 

4. 2, -1 

3.2, -1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 

7.5,-2 

5.6, -2 

4.2, -2 

7.5,-1 

5. 6, -1 

4. 2, -1 

3. 2, -1 

2.4, -1 

1. 8,-1 

1.3,-1 

1.0,-1 

7.5,-2 

1.3,2 

1.0,2 

7.5,1 

5.6,1 

4.2, 1 

3. 2,1 

2. 4,1 

1.8,1 

1.3,1 

1.0,1 

7.5,0 

5.6, 0 

4.2,0 

3.2,0 

4.2,1 

3.2, 1 

2.4, 1 

1. 8,1 

1.3, 1 

1.0, 1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1. 8,1 

1.3,1 

1.0,1 

7.5,0 

5.6,0 

4.2,0 

3.2,0 

2.4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

1.0, 1 

7.5,0 

5.6,0 

4. 2, 0 

3.2,0 

2. 4,0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5. 6, -1 

4. 2, -1 

7.5,0 

5.6,0 

4. 2,0 

3.2,0 

2.4, 0 

1.8,0 

1.3,0 

1.0,0 

7.5,-1 

5.6,-1 

4.2, -1 

·-1 II r/a 

9o=360°; ~ =0.45--Contlnued 

0.987 0.70 .962 

.908 

.823 

• 717 

.606 

.488 .80 

.376 

.262 

.183 

.113 

.061 

.028 

.972 

.931 

.867 

• 789 

.698 

.604 

.497 

.414 

.326 

(Pl. 120] 

0.969 0.25 .934 

.878 

.~ .30 

• 734 

.669 

.614 

.571 

.532 

.502 

.468 

.432 

.395 

.359 

.983 .35 .954 

.899 

.818 

• 707 

.616 

.526 

.455 

.402 

.361 

.320 

.281 

.235 

.40 

.976 

.928 

.860 

. 759 

.639 

.522 

.426 

.347 

.288 

.237 

.200 

.161 .45 

.972 

.925 

.842 

• 729 

.606 

.476 

.363 

.267 

.210 

.164 

.125 .50_ .092 

.985 

.950 

.883 

• 786 

.657 

.516 

.368 

.271 

.191 

.134 .60 

.095 

49 

5.6,-2 0.242 

4.2,-2 .167 

3.2, -2 .108 

2.4, -2 .061 

1.8, -2 .029 

5.6, -1 .979 

4. 2,-1 .950 3. 2, -1 .909 

2.4, -1 .853 

1.8, -1 • 791 

1.3,-1 .717 

1.0,-1 .655 

7.5,-2 .586 5.6,-2 .512 

4.2, -2 .436 

3.2, -2 .363 

2.4, -2 .285 

1.8,-2 .210 

1.3,-2 .136 

1.0, -2 .086 7.5,-3 .046 

3.2, -1 0.066 

2. 4,-1 .042 

5. 6,0 .989 

4. 2,0 .961 

3.2,0 .905 

2. 4,0 .809 

1.8,0 .681 

1.3,0 .518 

1.0,0 .391 

7.5,-1 .271 

5.6,-1 .177 

4.2,-1 .113 

3.2,-1 .072 2.4,-1 .044 

4.2,0 .990 3.2,0 .965 

2.4,0 .909 

1.8,0 .815 

1.3,0 .668 1.0,0 .535 7.5, -1 .392 

5. 6, -1 .265 4. 2, -1 .167 

3.2,-1 .101 

2.4,-1 .055 1.8, -1 .028 

3.2,0 .989 

2. 4, 0 .962 

1.8,0 .904 

1.3,0 • 792 

1.0,0 .673 7.5,-1 .528 

5. 6,-1 .384 4. 2,-1 .260 

3.2, -1 .165 

2. 4, -1 .092 1.8, -1 .045 

2.4,0 .986 1.8,0 .955 

1.3,0 .880 

1.0,0 • 786 

7.5,-1 .656 5.6,-1 .513 

4. 2,-1 .376 

3. 2, -1 .261 

2. 4, -1 .161 

1.8, -1 .088 1.3,-1 .037 

1.8,0 .982 

1.3,0 .937 

1.0,0 .870 

7.5,-1 • 764 

5. 6, -1 .634 

4. 2, -1 .498 

3. 2, -1 .375 

2. 4, -1 .258 1.8,-1 .163 

1.3, -1 .083 

1.0,-1 .042 

1.3,0 .987 

1.0,0 .961 
50 

r/a 

0.60 7.5,-1 

5.6,-1 

4. 2,-1 

3. 2, -1 

2.4,-1 

1.8,-1 

1.3,-1 

1.0, -1 

7.5,-2 

5.6, -2 

4. 2,-2 

HYDRAULIC DIFFUSIVITY, WEDGE-SHAPED AQUIFERS DRAINED BY STREAMS 

·-~ II rfa 

6 8o=360°; so=0.5&-Continued 

0.907 0. 70 

.822 

. 715 

.605 

.487 

.376 

.262 

.183 

.113 

.061 

.028 

7.5,-1 

5.6,-1 

4. 2, -1 

3.2,-1 

2.4, -1 

1. 8, -1 

1.3,-1 

1.0,-1 

7.5,-2 

5. 6,-2 

4.2,-2 

t-!.. so 

0.972 

.930 

.866 

• 788 

.691 

. 603 

.497 

.414 

.326 

.242 

.167 

rfa 

0.70 

.80 

·-~ II r/a 1-!.. so 

3.2,-2 0.108 0. 80 1.0,-1 0.655 

2.4, -2 .061 7.5,-2 .586 1.8,-2 .029 5.6,-2 .512 

4. 2,-7 .436 

5. 6,-1 .979 3.2,-7 .363 

4.2,-1 .950 2.4,-!1 .285 

3.2,-1 .908 1.8, -r • 210 

2. 4,-1 .852 1.3,-r .136 

1.8, -1 .790 1.0,-2 .086 1.3,-1 . 716 7.5 -3 .046 

U.S. GOVERNMENT PRINTING OFFICE: 1966 Q-791-598