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E83-10 104

l, SA ^HiA n 170y6 /

DEVELOPMENT OF A DATA MANAGEMENT

FRONT END FOR USE WITH A

LANDSAT BASED INFORMATION SYSTEM

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ORIGINAL PAGE 13

OF POOR QUALITY

Brian J. Turner

Office for Remote Sensing of Earth Resources

The Pennsylvania State University

112 ABL Building

University Park, PA 16802

Contract No. NAS5-26468

(E83-10104) DEVELOPMENT OF A DATA N83-15,747

MANAGEMENT FRONT END FOR USE WITH A.LANDSAT

BASED INFORMATION SYSTEM Final. Report, Feb.

1981 - Jan. 1982 (Pennsylvania State Univ.) Unclas 34 p HC A03/MF A01 CSCL 05B G3/4.3 00104

Phase II - Final Report

February 1981 - January 1982+ r+' .

Orir: nal photog o^by may be purohas.e4, ^' Ct ^'

from EROS Data Center .m.n`lr'

Sioux ra11e, SD 57198

prepared for

NASA/Goddard Space Flight Center

Greenbelt, MD 20771
CONTENTS

4

Page

INTRODUCTION ------------------------------------------------ 1

OBJECTIVE AND SPECIFIC TASK'S --------------------------------- 5

OVERVIEW OF ACCOMPLISHMENTS ---------------------------------- 7

MASK Program --------------------------------------- ---- 7

Versatec Programs ---------------------------------- ----- 7

Pennsylvania Data Base ------------------------------ ---- 7

Data Base Front-End -------------------------------- ---- 7

Interfacing Remotely Sensed Data to Geographic

Data Base Systems ---------------------------------- ---- 8

SOFTWARE DEVELOPED UNDER CONTRACT ----------------------- ---- 9

The ORSER Data Base Concept --------------------------- 9

The ORSER Data Base Format ------------------------- ---- 9

The SUBDB Program -------------------------------------- 9

Reformatting Programs for Data Base Generati.,r ----- ---- 10

The NMAPV Program -----------------------•----------- ---- 10

The MASK Program ----------------------------------- ---- 12

CONCLUSION -------------------------------------------------- 14

APPENDIX A: SAMPLE INTERACT SESSION

APPENDIX B: EXAMPLES OF VERSATEC OUTPUT
INTRODUCTION

The Forest Pest Management Livision (FPMD) of the Pennsylvania

Bureau of Forestry has the responsibility for conducting annual surveys of

the State's forest lands to accurately detect, map, and appraise forest

insect infestations. This has proven to be an overwhelming and impractical

task using current methods, which primarily consist of aerial sketch mapping

and ground observations. Nevertheless, these surveys are vital to provide

the spatial information needed to plan, organize, direct, and carry out

control measures. These measures include the optimum use and allocation of

pesticides and the introduction of natural predators.

A standarized, timely, and cost-effective method of accurately surveying

forests and their condition should enhance the probability of suppressing

infestations. The repetitive and synoptic coverage provided by Landsat

(formerly BRTS) makes such satellite-derived data potentially attractive as a

survey medium for monitoring forest insect damage; over large areas. Forest

Pest Management Division personnel have expressed keen interest in Landsat

data and have informally cooperated with NASA/Goddard Space Flight Center

(GSFC) since 1976 in the development of techniques to facilitate their use.

The results of this work indicate that it may be feasible to use Landsat

digital data to conduct annual surveys of insect defoliation of hardwood forests.

Since the .first Landsat data fnr Pennsylvania became available in 1972,

it has been apparent that large contiguous areas of heavy gypsy moth defoliation could be iden.*,ified and mapped from satellite passes made in late June or

early July. In fact, Mr. Darrel Williams, working with the Office for Remote

Sensing of Barth Resources (ORSER) was granted a Master of Science degree at

The Pennsylvania State University in 1974 . with a thesis entitled, "Computer

Analysis and Mapping of Gypsy Moth Defoliation Levels in Pennsylvania Using

ERTS-1 Data." Further research by Mr. Williams at GSFC and by Dr. Brian Turner

at ORSER indicated however, that if this technology was to reach an operational

;cage where the whole state could be scanned for accurate identification of

defoliated areas, considerable gains in efficiency of computer processing and

reductions in cost would be necessary.

A three-stage, three-year project was thus instituted by NASA, to see

whether these gains could be achieved. The specific objectives of this project

were as follows:

1. To demonstrate the feasibility of conducting automated, annual

assessments of the acreage and severity of insect defoliation of

hardwood forests using Landsat digital data.

2. To evaluate the accuracy, timeliness and cost-effectiveness of

using the automated, ?,andsat-based survey approach, and to compare

these methods with current survey techniques.

3. To provide FPMD personnel with training and experience in the

analysis of remote sensing data.
t^a

4. To assist t1RSRit in the development and implementation of

computer sof tware to facilitate:

a. ingestion any.' analysis of entire Landsat scenes, and

b. summarization of classification resul ts for any given

shape or size polygon (i.e., county or district

boundaries) within a sc ene.

The project is being conducted in three phases: 

I. A preliminary testing, training„ and development phase

conducted within at least two county-wide study arL as..

H. A quasi-operational testing, phase, operating within the

framework of entire Landsat sceres.

111. A functional technology transfer phase.

Phase T, the preliminary test pease, was designed to demonstrate they

practicality and accuracy of estimating the acreage and severity of defoliation using, Landsat di 3ittal data and computer processing techniques. The

primary objectives of Phase 1 were as follows:

1. To evaluate the nec"rac;y, ti.melin,8s and cost effectiveness of

assessing defoliation damage using Landsat data in comparison.

to the survey techniques currently used by the MID.

2. To define the Landsat-based analysis techniques to meet PPMD

requirements.

3. To provide training; to FPMD personnel relative to the digital

analysis of remoto sensing data.

4. To initiate the development and implementation of computer software on The Pennsylvania State University computer, in order to

upgrade the ORSER digital ima ge analysis package to allow both

the processing of entire Landsat scenes and the tabulation of

classification results for any irregular-shapod polygonal area

within as sceno .

Under a previous contract with GSFC (NAS5-26166), ORSER implemented the

:fourth objective of Phase 1:. The roga iremms of this contract were as

follows:

I. To .initiate the development and implementation of computer

software on the Pennsylvania State University computers in

order to upgrade the ORSER digital image analysis package

to allow both the processing of entire Landsat scenes and

the tabulation of classification results for any irregularshaped polygon within that scene.

2. To oy aamine the feasibility of developing a data baaso/Wormation system to ineorporate Landsat and ancillary data covoring

the entire state of Pennsylvania.

A
3

Under this contract and subsequent to it, almost all the programs in the

ORSER system were modified to process full Landsat scenes in one pass. Through

the development of a system for digitizing polygons, editing them and converting them to raster form, and the use of tile existing MAPCOMP program, the

It ORSER system can now tabulate classification statistics for any irregularlyshaped polygon within a scene.

Also tinder this contract, the feasibility of developing a data base/

information system to incorporate Landsat data and ancillary data for the

entire State of Pennsylvania was examined. This resulted in the conceptualization of an interface between the ORSER system and general purpose geographic

data analysis systems. It was demonstrated that such a system was feasible,

and no major hindrances to the development of such a system in the next phase

of this project were foreseen.

Phase II was designed to expand upon the Phase I effort by operating within

the fraiiiework of entire Landsat scenes. The primary objootiv4^s of Phase 11

were as follows:

I. To test and evalunte the computer software which was developed

by ORSER during Phase I.

2. To initiate the development of a data tease/information system to

handle Landsat data for the entire state of Pennsylvania.

3. To conduct a quasi-operational assessment of gvi).--y tooth defoliation damage using Landsat data.

G. To provide additional training to FPMD personnel relative to

digital analysis of remote sensing data.

Initial Phase II activities were to include the testing and evaluation of

ORSER computer software to provide efficient methods of:

a. processing the lar ge amounts of data associated with an

entire Landsat scene;

b. digi l. 1"ing, entering, and registering to Landsat data, the

boundaries for all Pennsylvania counties and/or DFPM

districts located wholly or partially within a Landsat

scene; and

c. suilimnri. zing, classification results, such as total

forested acreage or the location, amount, and severity

of defoliation, by county or district.

During Phase IT, GSFC was to acquire imagery and computer-compatible

tapes for the most recent, nondefoliated, and relatively cloud-free Landsat

coverage of the entire state of Pennsylvania. These data were to be

classified to create a forest/non-forest data base for the entire state.

Classification of Landsat data covering an area as extensive as Punnsylvania requires convenient Methods for handling larl:,e data sets. Therefore,

the development of a data basohnforiiiat ion system was to be initiated to
G

facilitate the forest/non-forest classification of Pennsylvania. This system

was to include scene-to-scene registrat ozi, sampling methods to select areas

for intensive; study, and methods of data reduction. In addition, the data base

was to contain FPMD boundaries and county boundaries. The total requirements

of such a data base/information system were to be determined jointly by FPMD,

NASA, and ORSER personnel. The development and implementation of the data base/

information system was to be carried out by ORSER, with NASA's assistance.
5

OBJECTIVE AND SPECIFIC TASKS

The objective of the contract between GSFC and ORSER was to implement

those parts of Phase II related to ORSER's involvement in this project, viz.,

to initiate the development and implementation of a data management frontend system on the Pennsylvania State University computers for use with a

Landsat based information system and to facilitate the processing of both

Landsat and ancillary data using this system. To attain this objective, ORSER

was to develop software and expand its system by means of the specific tasks

described below.

A data management front-end system was to be developed which would permit

access to a data base system which incorporates Landsat data and ancillary data

covering the entire state of Pennsylvania. This front end was to be a cellular

grid system that would be compatible with the Pennsylvania FPMD's Forest Pest

Locator Grid. In addition, county-wide and division-wide data were to be

extractable using the data management system.

The three elements of the data management front-end system that were to

be addressed during this contract were:

a. polygon-to-grid conversion techniques,

b. registration techniques, and

c. archival and retrieval techniques.

Digital tapes containing Pennsylvania county and forest district boundaries

would be made available to ORSER by GSFC personnel. These were to constitute

the initial input to the data base system. Existing University polygon-to-grid

conversion software packages would be modified to be compatible with the data

management system.

The Jet Propulsion Laboratory would develop a map-projected Landsat Mosaic

for the state of Pennsylvania. This would serve as the initial data base for

the state. New images could be continually registered to this data base.

Computer compatible tapes containing the data base would be made available to

ORSER. Because JPL had already developed the registration capability, ORSER

was not to be obligated to do•so under this contract. However, contract

personnel were periodically to consult with JPL to initiate systems integration

support at ORSER.

The most critical and extensive procedures to be developed under this

contract would be the archival and retrieval techniques. Data would be stored

in units that were compatible with the Pennsylvania Forest Locator Grid. The

cadability would exist to extract this information within county boundaries,

forest district boundaries, and locator grid units. The front-end system would

consist of a "set-up" index containing look-up tables, a catalog of ORSER job

controls, and a series of prompts for the user. The system would be compatible

with the remote terminal system, the University INTERACT system, and with the

ORSER processors.
It was further specified that the following demonstrations be carried out

at specified times during the contract.

1. During the first month: Classification of a full Landsat scene;

identification of areas of healthy forest, moderate defoliation,

and heavy defoliation, using procedures outlined during Phase I

of the project.

2. During th, sixth month: Classification of a selected county-wide

area located within a single scene; identification of areas of

healthy forest, Moderate defoliation, and heavy defoliation. A

county-wide area would be extracted using techniques developed

during this contract.

3. During the twelfth month: Classification of a selected county-wide

area located within two La.zdsat scenes; identification of areas of

healthy forest, moderate defoliation, and heavy defoliation. A

county-wide area would be extracted using techniques developed

during this contract.

6
OVERVIEW OF ACCOMPLISHMENTS

As the project unfolded, and as a result of meetings at GSFC and at JP?L,

the following tasks were defined and then accomplished. These are briefly

described here and amplified S,n the following sections.

MASK ^Pro^ram

The new program called MASK is used to mask a raw data set with a character map and produce another raw data set, where some of the pixf, ls have been

replaced with all zeros. This program has a wide variety of applications, but

in the context of this project it will be used to mask out non-forest pixels

prior to classification of the forested areas. This will avoid confusion

between agricultural-cleared areas and heavily defoliated forest. This program

is more fully described in the current ORSER manual.1

Versatec Programs

A 22-inch Versatec 8222 electrostatic plotter, financed partly under this

contract and partly by University funds, was installed in September 1981 at

the PSU Computation Center. Software to make effective use of this major

enhancement of our display capabilities has been written in the form of four

programs: one to handle raw data in onu--Nine-per- • record format, one to produce maps from a spE-ified channel of ORSER-format raw data, one which is a

Versatec-output version of MAP (called NMAPV, described elsewhere in more

detail), and one which is a Versatec-output version of DISPLAY (called DISPLAYV).

Pennsylvani a _DaCa Base

The data base of the western half of Pennsylvania was received from JPL

in October, 1981. This was supplied as four irregular polygons in bandsequential format, Three programs (SEW, INT, and DBGEN) were written to

edge-join the polygons and reformat the data into the ORSER Data Base format

(described elsewhere). A special version of the ORSER SUBOUND program, called

SUBDB, was written. to accept a set of line-element coordinates defining an,

irregular polygon which bounds data in the Data Base format and outputs raw

data, for-the bounded area only, in the regular ORSER Raw Data .format.

Another program, PIOS, was required to extract the UTM coordinates of

the counties and forest districts, as supplied on tape from GSFC, convert them

to line-element coordinates corresponding with the data base, and produce AREA

cards for inpat to the SUBDB program.

Data Base Front-End

A user-friendly system has been set up using the INTERACT EXEC-file

feature available at the University to allow a non-programmer to develop the

1 Turner, B. J., G. M. Baumer, and W. L. dyers (1.982). The ORSER Remote Sensing

Analysis System: A User's Manual. Research Publication 109/OR, Institute for

Research on Land and Water Resources, The Pennsylvania State University.
8

job for extracting a specified section of the data base and then process it

using the front-end for the ORSER system. The user conversationally requests

counties, forest districts, Pest Locator Grid units, or quad sheets, then

gives the name or code of 4',Ioa requested area. The EXEC program locates the

requested boundary and sets up a SUBDB job for execution.

I.icerfacing Remotely Sensed Data

to Geographic Data Base SXatems

Partly under this project, a system of programs is being developed to

summarize categorized Landsat-derived data by grid cells and add these

statistics as layers to an existing geographic data base. Although not

specifically required by the contract, this is an important step in interfa;.ing the Landsat-derived Pennsylvania data base with existing statewide

geographic data bases, such as the LUDA system.
9

SOFTWARE DEVELOPED UNDER Cc NVAAOT

The ORSER Data Base Concept

The Pennsylvania data base consists of two mosaics of Landsat data, one

covering the eastern half and one covering the western half of the state.

Each mo.aic lies in a separate UTM zone. The western half of the data base

consists of 6000 scan lines, each of which has 5500 elements and 4 bands for

each element. This adds up to 142-million bytes of information for the

western half alone. In order to handle this amGant of information efficiently,

a new format had to be invented that allowed easy access to all 4 bands of

Whe data base for any irregular area. Such an area might be a county, a

forest district, or any user-identified area, defined either by line-element

numbers or UTM coordinates. This new format is called the ORSER Data Base

format.

The ORSER Data Base Format

The ORSER Dat, Base forreat is essentially a band-interleaved-by-line

format, where all of the pl,sels for one band of a scan line are stored as one

logical record on a tape. Scan lines are organized in ascending order, just

as in the ORSER Raw Data format. The scan lines are grouped into tape files

containing a specific number of lines. In the case of the western Pennsylvania mosair., there are 500 scan lines per tape file. Thus, 12 tape files are

used for the entire data set. The first file contains all bands for scan lines

1 through 500, the second file contains lines 501 through 1000, and so on,

through the last file. Header information on the files is stored within the

program so that only files containing data within the area of interest need be

read. This was done to cut down on the amount of computer time required to

access an area that may be several thousand scan lines down the data base.

Along with the grid cell format described abo-.e, the data base consists

of sets of coordinates that describe irregular areas. Currently, all of the

county boundaries and all of the forest district 'boundaries are stored as

separate tape files. As part of the front-end system, there is an index that

relates each county to its corresponding file on the tape. Other boundaries

(such as watersheds) can easily be added to the system, as long as the coordinates are in the UTM projection.

The SUBDB Program

The SUBDB program will subset any irregularly bounded area from a data

set in the ORSER Data Base format and output the data in the ORSER Raw Data

format for subsequent analysis by any of the ORSER programs. The program

requires only two tape drives but may use more than two tapes, depending upon

the size of the area to be subset.

The SUBDB program first reads the file containing the AREA cards that

describe the desired polygon. Optionally, these cards may be entered manually

in either UTM meters or line and element numbers. The program then converts

these into starting and stopping points within each scan line. It also

r
computes the naxKmum and minimum line and element numbers that will be needed

for the data. Then SUBDB determines which file in the data base to start

with, based on the minimum line number. The program starts with this file

directly and processes sequentially from there. The data are then reformatted

into the ORSER Rarer Data format while replacing all pixels that lie outside

the area with all zeros (null pixels). The new data set, now in the ORSER

Raw Data format, are written onto the output tape and can then be processed

by any program in the ORSER system that processes raw data.

Reformatting Programs for Data Base Generation

Three programs were needed to reformat the data from 16 VICAR files into

the ORSER Data Base format. These programs are called SEW, INT and DBGEN.

SEW reads up to 4 VICAR format files of adjacent areas and sews them together

to form 1 VICAR file. This had to be done for each of the 4 bands. INT reads

VICAR-formatted files and produces band-interleaved-by-line files. This

program was run on bands 4 and 5 together, then on bands 6 and 7 together.

The third program, DBGEN, then reads these 2 files, interleaves them and

breaks them down into 12 files of 500 scan lines each. These programs should

prove useful in adding to the data base, either in terms`of extra bands or

adjacent geographic areas.

The NMAPV Program

The NMAPV program is a modification of the NMAP program that will output

directly to the Versatec 8222 Electrostatic Printer at the PSU Computation

Genter. NMAPV works exactly like NMAP, but instead of producing a character

line printer map, it produces a grey scale map on the Versatec. The disadvantage of using NMAPV over NMAP is that it requires more core and therefore

must be run in a higher category. Thus, turn around time will most likely

be longer. The advantages to NMAPV are that it produces a much more readable

map and that it can output a width of up to 4200 pixels on one page.

10

it prints

of "on-off" 

the

to success3w only the two

The Versatec is an electrostatic raster printer. That is,

tiny dots and produces grey scales by using different groupings

dots. For complete descriptions of how the Versatec works, see

"Versatec Programmer's Guide," 2 but this manual is not required

fully use the NMAPV program. Essentially, the user needs to kn

following facts:

1. The Versatec has a square pixel one two-hundredth of an inch

on a side and can print 4200 pixels across the page. Thus,

if a map is produced that has 500 lines and 600 elements, it

will be 21" long and 3" wide.

2. The user must specify which grey level to use for each class,

by indicating a number from 0 (black) to 255 (white). The

default (if no CLASS cards are specified) is to use 8 equally

spaced grey levels and put an equal percentage of the data

into each of the 8 classes.

2Computation Center (1982). Versatec Programmer's Guide. The Pennsylvania

State University.
11

If the data area is small, the NMAPV program can be run with the default

classes. This meax.s that the first 50 lines of data will be used to define

8 uniform percent classes. For a large area, the program should be ru?', First

on a smaller block near the middle of the data set. Then, the "one pr,,-Yv6nt

classes" table can be used to define appropriate levels for the classes. For

display of Landsat data, it seems that 8 to 10 classes yield a map which is

as readable as one using 32 classes (the maximum number), at less cost. NMAPV

(like NMAP) will display many different maps depending on the options used.

Only experimentation can indicate which combination of class cards will best

show the desired features for a given data set.

The control cards, listed below, for the NMAPV program, and their defaults,

are described in the "Commonly Used Control Cards" wriceup in the ORSER manual.

ALL BLOCKS BLOCK CHANNELS

COMMENT END FLIGHT

LEVEL TITLE

The control cards described below work exactly as in NMAP, with the

following exceptions:

CLASS Card(s)

Cols. Description of Contents

1-5 CLASS

8-10 Grey level to be used for this class (000-255)

11-14 Upper level of the class in real format

The CLASS card works as in NMAP, except that instead of a symbol,

a 3-digit number is used that must range from 000 (black) to 255 (white).

PCTCLASS Card(s)

The PCTCLASS card works as in NMAP, except that the discussion on

symbols does not apply. Instead of symbols, the program will calculate 

the values of the grey scales to be used as follows: The value for the

first percent class will be zero. The value for the next percent class

will be the value for the previous one plus (255/number of requested

classes -1)). In other words, the grey levels will be equally spaced

between 0 and 255.

VERSATEC Card

Cols. Description of Contents

1-8 VERSATEC

10-11 line repetition factor (required)

13-14 element repetition factor (required)

16-18 background level (default = 0, black)
12

The V3RSA7X card is required and must be the first control

card read by the program. The line and element repetition factors

are used to enlarge the picture. They must both be specified as

integers and need not be the same. The only restriction is that

the element repetition factor times the number of elements output

(calculated from the BLOCK card or by default of the entire map) must

be less than or equal to 4200. The background level is the grey

level used for null pixels (those outside the bounded area), the

default value is 0 (black) but the user may wish to use 255 for a

white background. When the VERSATEC card is used, the SYMBOLS card

should not be used. Without the VERSATEC curd, the program will

work like NMAP. All of the associated statistics and summary

tables produced by NMAP will also be produced by NMAPV.

The DfASK Pr ogram

The MASK program is used to mask a raw data set with a character map

and produce another raw data set, where some of the pixels have been replaced

with all zero: (null pixels). Normally, the pixels whose value is set to

5.

null have their corresponding value blank on the character map.

The program has two input data sets. The first must be in the ORSER Raw

Data format. The second must be in the ORSER Compressed Map format. Both

of these formats are described in the ORSER manual write-up, "ORSER Data

Formats." The program reads the raw data of the character map and sets the

< value in all channels to zero for any pixel having a blank as its value in

the character 4ap. It then writes this data set out in the ORSER Raw Data

format, whi'cb can then be read by any of the ORSER programs that read raw

data.

The MASK program allows the user to first classify a data set and then,

using a final character map, to mask out all of the data except those belonging to a certain category. The result can then be run through any other

ORSER program to further divide that class without confusion with pixels that

were classified differently in the first step. The KEEP card can be used to

specify the characters to be kept.

• 

This program has a wide variety of different applications. , The compressed

map used to do the masking need not be generated from the same data set as the

one being masked. A compressed map of forest versus non-forest may be

generated from one scene, then this map may be used to mask a later scene.

The resulting data set can then be analyzed to detect changes in the area

that was previously defined as forest. As another example of the flexibility of this program, one might first generate a uniformity map (using the

UMAP program) to produce a compressed map of "uniform" areas, and then run

the MASK program to produce a data set where the only pixels left are those

that show some level of uniformity with their neighbors. This data set can

then be run through the CLUS program, for example, to cluster only relatively

a ge areas.

The following control cards for the MASK program, are described in the

"Commonly Used Control Cards" writeup in the ORSER manual.
13

BLOCK END MATCH

The FLIGHT card is described in the "SUBSET Program Description." Two other

cards can be used in this program.

KEEP Card

Cols. Description of Contents

1-4 KEEP

9-68 Any Symbols

The KEEP card is used to tell the MASK program which characters to

keep, that is, all other characters will be set to zero. If no KEEP card

is used, all characters except blank will be kept. This is recommended,

since the programs run slightly faster. Any symbols except blank may be

kept. If blank is desired, the BLANK card must be used.

Cols. Descrip ion of Contents

1-S BLANK

6-80 Not Used 

The BLANK card can only be used if a KEEP card is used. If used, 

it must follow the KEEP card. The BLANK card specifies that the

character blank is to be added to the list of characters to be kept

as specified on the KEEP card.
CONCLUSION

The objective of the contract, viz., to initiate the development and

implementation of a data management front-end system on The Pennsylvania

Sta.te University computers for use with a Landsat based information system

anc! to facilitate the processing of both Landsat and ancillary data using

this system, has been realized.

All the specific tasks have been completed as required. Software has

been developed to adept existing ORSER programs to the peculiar needs of

the Landsat mosaic data base supplied by JPL. Archival and retrieval

techniques have been developed to efficiently handle this data base and

make it compatible with the requirements of the Pennsylvania Bureau of

Forestry. A user-friendly front-end has been constructed to facilitate

access to the data base.

The specified demonstrations of classification of defoliated forest by

various area delineations have not been carried out, by agreement with the

Technical Officer cif Goddard Space Flight Center. However, everything is

now in place to complete •che process, as follows:

1. For a specified area, form the forest/non-forest mask in ORSER

compressed map format using GSFC-supplied classification procedures.

2. Register data from a new scene (defoliated) to the mask (which may

invrlve mosaicking if the area encompasses two Landsat scenes).

3. Produce a masked new data set using the MASK program.

4. Analyze this data set (using classification methods recommended

by GSFC) to produce a map showing degrees of defoliation, output

on the Versatec plotter.

5. Produce color composite maps by a diazo-type process.

14

v
APPENDIX A: SAMPLE INTERACT SESSION
!

SAMPLE INTERACT SESSION TO ACCESS THE PENNSYLVANIA DATA BASE

The following example shows how easily the job stem can be set up to

subset data from the Pennsylvania Data Base by county, forest district,

user-defined polygon, or pest-locator grid.cell. Six sequential computer

runs are shown, including five subsets and one run of NMAPV. Output to

both disc and tape are shown. Examples of Versatec output for four areas

are shoran in Appendix B.

? exec from men.u41000.gmb.lib#orsergo on vo1005 clr

WELCOME TO THE ORSER SYSTEM.

OK TO CLEAR ACTIVE FILE? ok

ENTER PROGRAM NAME OR 'HELP' FOR A DETAILED LIST OF INSTRUCTIONS.

ENTER 'LISTTAPES' TO LIST WORKING TAPES (RS TAPES) ASSIGNED TO YOU.

ENTER 'POLYGON' TO EXECUTE ANY ORSER POLYGON PROGRAM.

ENTER 'DATABASE' TO ACCESS THE PENNSYLVANIA LANDSAT DATABASE.

ENTER 'EXIT' TO EXIT_ THIS EXEC FILE.

-->database

WELCOME TO THE PENNSYLVANIA LANDSAT DATABASE.

LANDSAT DATA CAN BE RETRIEVED BY COUNTY NAME (C) BY FOREST DISTRICT (D),

USER DEFINED POLYGON (U), OR BY PEST LOC ATER GRID CELLS (P).

ENTER THE TYPE OF AREA TO BE RETRIEVED (C/D/U/P) OR TYPE 'HELP' FOR

MORE INFORMATION.

--> he 1p

*** THE PENNSYLVANIA LANDSAT DATABASE ***

LANDSAT DATA H;.S BEEN COLLECTED, GEOMETRICALLY CORRECTED, AND

SEWN TOGETHER FOR THE STATE OF PENNSYLVANIA. THE DATA IS A COMPOSITE 

OF SEVERAL SUMMER PASSES FROM 1976-1979. IT HAS BEEN GEOMETRICALLY

TO UTM COORDINATES AND IS DIVIDED INTO EAST AND 14EST SECTIONS

ALONG THE 78TH LONGITUDINAL LINE. THE DATA CAN BE ACCESSED BY FOUR

HTHODS: COUNTIES, FOREST DISTRICTS, USER DEFINED POLYGONS, OR

PENNSYLVANIA D.E.R. PEST LOCATER GRID CELLS. MORE DETAILED

DISCRIPTIONS OF THE ACCESS METHODS ARE AVAILABLE BY TYPING 'HELP'

WHEN IN THE DESIRED ACCESSING PORTION OF THIS PROGRAM.

(HIT RETURN TO CONTINUE)

a ACCESSING LANDSAT DATA IS STRAIGHT FORWARD USING THIS EXEC FILE. THE

USER SUPPLIES THE DESIRED ACCESS METHOD AT THE FIRST PROMPT

AND IS PROMPTED THROUGH THE SELECTED ACCESS METHOD. AT THE END

OF THE ACCESS SESSION THE USER WILT. BE ASKED F9R A TAPE NAME

FOR RECEIVING THE DATA, AND THE ..SOB STEM WILL SE IN AN ACTIVE

FILE READY FOR SUBMISSION TO THE COMPUTER. 
(HIT RETURN TO CONTINUE)

LANDSAT DATA CAN BE RETRIEVED BY COUNTY NAME (C), BY FOREST DISTRICT (D),

USER DEFINED POLYGON (U), OR BY PEST LOCATER GRID CELLS (P).

ENTER THE TYPE OF AREA TO BE RETRIEVED (C/D/U/P) OR TYPE 'HELP' FOR

MORE INFORMATION.

>county

*** THE PENNSYLVANIA LANDSAT DATABASE ***

ACCESSING AREA BY COUNTY NAME

ENTER THE COUNTY NAME. ONLY ONE COUNTY CAN BE ACCESSED AT A TIME.

ENTER 'HELP' FOR MORE INFORMATION.

-->help

ACCESSING LANDSAT DATA BY COUNTY

THIS SECTION OF THE DATABASE ALLOWS USERS TO SUBSET THE LANDSAT

DATA FOR ONE COUNTY AT A TIME. THE US,G.R WILL BE PROMPTED FOR THE

DESIRED COUNTY. THE COUNTY NAME IS ENTERED AND THE PROGRAM

CONTINUES UNTIL A JOB STEM IS READY FOR SUBMISSION TO THE

COMPUTER. SOME COUNTIES ARE DIVIDED INTO EAST AND WEST SECTIONS.

THE USER IS PROMPTED FOR THE DESIRED SECTION.

THE USER IS THEN PROMPTED FOR ADDITIONAL CONTROL CARDS, WHICH

WOULD INCLUDE THE FOLLOWING : CHANNELS, END

THE NEXT PROMPT IS FOR AN OUTPUT TAPE TO RECEIVE THE COUNTY

DATA, AND FOR JOB OPTIONS. THE JOB STEM IS PLACED IN THE

USER'S ACTIVE FILE, READY FOR SUBMISSION TO THE COMPUTER.

ENTER THE COUNTY NAME. ONLY ONE COUNTY CAN BE ACCESSED AT A TIME.

ENTER 'HELP' FOR MORE INFORMATION.

-->center

THE COUNTY SPECIFIED WAS NOT FOUND. PLEASE CHECK TO MAKE SURE THAT

'CENTER'

IS SPELLED CORRECTLY.

THE FOLLOWING COUNTIES BEGIN WITH THE LETTER 'C':

CAMBRIA

CLEARFIELD

CRAWFORD

CLARION

CENTRE

CAMERON

CLINTON

CUMBERLAND

COLUMBIA

CHESTER

CARBON

2

U`
3

ENTER THE COUNT'. NAME. ONLY ONE COUNTY CAN BE ACCESSED AT A TIME.

ENTER 'HELP' FOR MORE INFORMATION.

-->centre

THE SELECTED COUNTY (CENTRE) IS DIVIDED INTO EAST(E) AND WEST(W) SECTIONS.

ONLY ONE SECTION MAY BE RETRIEVED AT A TIME. PLEASE ENTER THE DESIRED

SECTION(E/W) .

--> nest

IF ADDITIONAL CONTROL CARDS ARE DESIRED, TYPE CONTROL CARD

NAME OR 'HELP' FOR A LIST OF APPLICABLE CARDS. WHEN ALL DESIRED

CARDS HAVE BEEN INCLUDED, HIT RETURN.

- >help

CONTROL CARDS THAT MAY BE USED WITH THE DATABASE PROGRAM INCLUDE:

CHANNELS

END

ENTER NEXT CONTROL CARD NAME, 'HELP', OR HIT RETURN TO EXIT

-->channels

ENTER DESIRED CHAITNEL NUMBERS, ONE PER LINE. WHEN ALL HAVE BEEN

ENTERED, HIT RETURN.

-->1

-->3

-->4

ENTER NEXT CONTROL CARD NAME, 'HELP', OR HIT RETURN TO EXIT

*END CARD INCLUDED*

GIVE THE OUTPUT SPECIFICATIONS AT THE NEXT PROMPT.

IS OUTPUT ON TAPE OR DISK? (T/D)

->d

ENTER OUTPUT DATA SET NAME 

-->MEN.P92250.FCL.centre.west

ENTER NUMBER OF TRACKS FOR DATA SET

NUMBER OF TRACKS = 1 + (#CHAN * #ELEM * #LINES) / 10000

-->a5

* END OF COUNTY ACCESS METHOD *

ENTER JOB PARAMETER OPTION NUMBER(S) OR 'HELP' FOR A LIST

OF OPTIONS. TO EXIT EXEC FILE, HIT RETURN.

** ACTIVE FILE NOW CONTAINS STEM FOR RUNNING THE DATABASE PROGRAM **

FOR INFORMATION ON RUNNING THE PROGRAM, ENTER 'HELP', OR HIT

RETURN TO EXIT.
*** END OF ORSER EXEC FILE ***

? list; list of the active file

11 //MN2XXXXX JOB (JCCO)),

2. // REGION-500K

3. //**'** ORSER SUBDB PROGRAM *****

4. // EXEC PGM=SUBDB

5. //* REFERENCE TO THE ORSER LOAD MODULE LIBRARY

6. //STEPLIB DD DSN=PIEN.P9225C,.PUB.ORLIB,DISP=SHR,

7. VOL=REF=MEr-i.P92250.PUB.ORLIB,UNIT=SYSALLDA //

8. //* UNIT 6 IS A PRINT FILE

'9. //FT06FO01 DD SYSOUT=A,DCB=(RECFM=FA,BLKSIZE=133)

10. //FT14FQ01 DD DSN-MEN.U41000.NBB.OUTPUT.TAPE.CATALOG,DISP=SHR,

11. // VOL=REF=MEN.U41000.NBB•LIB,UNIT=SYSALLDA

< 12. /*TAPE LIB005

13. //* THE FOLLOWING DD STATEMENTS DESCRIBT THE PA DATA nnSE

14. //* WESTERN HALF UTM PROJECTION.

15. //FT51F001 DD UNIT=TAPE,VOL=(,RETAIN,SER--LIB005),

16. // LABEL=I,DSN=DATABASE,DISP=OLD,DCB=(RECFPi=U,BLKSIZE=6000)

17. //FT52F001 DD UNIT-TAPE,VOL=(,RETAIN,SER=LIB005),

18. // LABEL=2,DSN=DATABASE,DISP=OLD,DCB=(RECFM=U,BLKSIZE=6000)

19. //FT53F001 DD UNIT=TAPE,VOL=(,RETAIN,SER=LIB005),

I 20. // LABEL=3,DSN=DATABASE,DISP=OLD,DCB=(RECFM=U,BLKSIZE=6000)

i 21. //FT54F001 DD UNIT=TAPE,VOL=(,RETAIN,SER=LIB005),

22. // LABEL=4,DSN=DATABASE,DISP=OLD,DCB=(RECFM=U,BLKSIZE=6000)

23. //FT55F001 DD UNIT=TAPE,VOL=(,RETAIN,SER=LIB005),

24. // LABEL=5,DSN=DATABASE,DISP=OLD,DCB=(RECFM=U,BLKSIZE=6000)

25. //FT56FOO1 DD UNIT=TAPE,VOL=(,RETAIN,SER=LIB005),

26. // LABEL=6,DSN=DATABASE,DISP=OLD,DCB=(RECFM=U,BLKSIZE=6000)

27. //FT57F001 DD UNIT=TAPE,VOL=(,RETAIN,^3ER=LIB005),

28. // LABEL=7,DSN=DATABASE,DISP=OLD,DCB=(RECFM=U,BLKSIZE=6000)

29. //FT58F001 DD UNIT=TAPE,VOL=(,RETAIN,SER=LIB005),

30. // LABEL=8,DSN=DATABASE,DISP=OLD,DCB=(RECFM=U,BLKSIZE=6000)

31. //FT59F001 DD UNIT=TAPE,VOL=(,RETAIN,SER=LIB005),

32. // LABEL=9,DSN=DATABASE,DISP=OLD,DCB=(RECFM=U,BLKSIZE=6000)

33. //FT60F001 DD UNIT=TAPE,VOL=(,RETAIN,SER=LIB005),

34. // LABEL=I0,DSN=DATABASE,DISP=OLD,DCB=(RECFM=U,BLKSIZE=6000)

35. //FT61F001 DD UNIT=TAPE,VOL=(,RETAIN,SER=LIB005),

36. // LABEL=11,DSN=DATABASE,DISP=OLD,DCB=(RECFi4=U,BLKSIZE=6000)

37. //* THE FOLLOWING DD STMT. DESCRIBES THE OUTPUT DATA SET

38. //FT09F001 DD DSN=MEN.P92250.FCL.CENTRE.'WEST,

39 // VOL=REF=MEN.P92250.FCL.LIB,

40. // DISPP=('NEW,KEEP);SPACE=(TRK,(75,1),RLSE),

41. // DCB-(RECFM=VBS,LRECL=18412,BLKSIZE=19050,OPTCD=C)

w 42. !/*

F 43. //FT05F001 DD DSN=&&CARDS UNIT=VIO SPACE=(TRK (1,1),RLSE),

j 44. // DISP=(NEW,DELETE),DCB=(RECFM=FB,LRECL=80,BLKSIZE=1600)

45. /*TAPE RSWEST

"I 46. //FT04F00l DD UNIT=TAPE,VOL=SER=RSWEST,DSN=CENTREW,

47. // LABEL=I7,DCB=(RECFM=FB,LRECL=80,BLKSIZE=3200)

ik 48. // DD

49. DATABASE

50. CHANNELS 1 3 4

51. END

t` 52. /*

? run unn

JOB 2909 MN2FCLO3 AW JCL CONVERSION

? exec from men.u4100O.gwb.li b#orsergo on vol005 clr
^ Y

G.

a.

oflIGINAL PAGE 19 5

OF POOR QUALITY

? exec fro $men.u41000.gmb.lib#orsergo on cat clr

WELCOME TO THE ORSER SYSTEM.

OK TO CLEAR ACTIVE FILE? ok

ENTER. PROGRAM NAME OR 'HELP' FOR A DETAILED LIST OF INSTRUCTIONS.

ENTER 'LISTTAPES' TO LIST WORKING TAPES (RS TAPES) ASSIGNED TO YOU.

ENTER 'POLYGON' TO EXECUTE ANY ORSER POLYGON PROGRAM.

ENTER 'EXIT' TO EXIT THIS EXEC FILE.

ENTER 'DATABASE' TO ACCESS THE PENNSYLVANIA LANDSAT DATABASE.

-->database

WELCOME TO THE PENNSYLVANIA LANDSAT DATABASE.

LANDSAT DATA CAN BE RETRIEVED BY COUNTY NAME (C), BY FOREST DISTRICT (D

USER DEFINED POLYGON (U), OR BY PEST LOCATER GRID CELLS (P).

ENTER THE TYPL OF AREA TO BE RETRIEVED (C/D/U/P) OR TYPE 'HELP' FOR

MORE INFORMATION.

-->c

*** THE PENNSYLVANIA LANDSAT DATABASE ***

ACCESSING AREA BY COUNTY NAME

ENTER THE COUNTY NAME. ONLY ONE COUNTY CAN BE ACCESSED AT A TIME.

ENTER 'HELP' FOR MORE INFORMATION.

--> elk

IS OUTPUT ON TAPE OR DIS.:? (T/D)

-->t * ENTER LAST NAME AND FIRST INITIAL SEPARATED BY ONE BLANK.

-->baumer g

ENTER OUTPUT TAPE NAME

-->rsO114

1000 COMMANDS EXECUTED WITH NO TYPING -- CHECK FOR LOOP

* END OF COUNTY ACCESS METHOD *

ENTER JOB PARAMETER OPTION NUMBER(S) OR 'HELP' FOR A LIST

OF OPTJ ONS. TO EXIT EXEC FILE, HIT RETURN.

** ACTIVE FILE NOW CONTAINS STEM FOR RUNNING THE DATABASE PROGRAM **

FOR INFORMATION ON RUNNING THE PROGRAM, ENTER - HELP - , OR HIT

RETURN TO EXIT.

*** END OF ORSER EXEC FILE ***

? exe fro $men.u41000.gmb.lib#orsergo on cat clr
iz

WELCOME'TO THE ORSER SYSTEM.

OK TO CLEAR ACTIVE FILE? A

ENTER PROGRAM NAME OR 'HELP' FOR A DETAILED LIST OF INSTRUCTIONS.

ENTER 'LISTTAPES' TO LIST WORKING TAPES (RS TAPES) ASSIGNED TO YOU.

ENTER 'POLYGON' TO EXECUTE ANY ORSER POLYGON PROGRAM.

ENTER 'DATABASE' TO ACCESS THE PENNSYLVANIA LANDSAT DATABASE.

ENTER 'EXIT' TO EXIT THIS EXEC FILE.

-->database

WELCOME TO THE PENNSYLVANIA LANDSAT DATABASE.

LANDSAT DATA CAN BE RETRIEVED BY COUNTY NAME (C), BY FOREST DISTRICT (D),

USER DEFINED POLYGON (U), OR BY PEST LOCATER GRID CELLS (P).

ENTER THE TYPE OF AREA TO BE RETRIEVED (C/D/U/P) OR TYPE 'HELP' FOR

MORE INFORMATION.

-->d

*** THE PENNSYLVANIA LANDSAT DATABASE ***

ACCESSING AREA BY FOREST DISTRICT

ENTER THE FOREST DISTRICT NUMBER. ONLY ONE DISTRICT CAN BE AC' SSED

AT A TIME. ENTER 'HELP' FOR MORE INFORMATION.

-->help

ACCESSING LANDSAT DATA BY FOREST DISTRICTS

THIS SECTION OF THE DATABASE ALLOWS USERS TO SUBSET THE LANDSAT

DATA FOR ONE OF THE PENNSYLVANIA STATE FOREST DISTRICTS. THE

USER WILL BE PROMPTED FOR THE DESIRED FOREST DISTRICT. SOME OF

THE DISTRICTS ARE DIVIDED INTO EAST AND WEST SECTIONS AND THE

USER '.TILL BE PROMPTED FOR THE DESIRED SECTION. (THE DISTRICTS ARE

NUMBERED FROM 1 TO 20)

THE USER IS THEN PRO1PTED FOR ADDITIONAL CONTROL CARDS, WHICH

WOULD INCLUDE THE FOLLOWING : CHANNELS, END 

THE USER IS NEXT PRO1PTED FOR AN OUTPUT TAPE TO RECEIVE THE FOREST

DISTRICT DATA, AND FOR JOB OPTIONS. THE JOB STEM IS PLACED IN THE

USER'S ACTIVE FILE, READY FOR SUBMISSION TO THE COMPUTER.

ENTER THE FOREST DISTRICT NUMBER. ONLY ONE DISTRICT CAN BE ACCESSED

AT A TIME. ENTER 'HELP' FOR MORE INFORMATION.

-->13

THE SF1ECTED DISTRICT (13) IS DIVIDED INTO EAST (E) AND WEST (W)

SECTIONS. ONLY ONE SECTION MAY BE ACCESSED AT A TIME. PLEASE

ENTER THE DESIRED SECTION ( E/W).

-->w

IF ADDITIONAL CONTROL CARDS ARE DESIRED, TYPE CONTROL CARD

NAME OR 'HELP' FOR A LIST OF APPLICABLE CARDS. WHEN ALL DESIRED

CARDS HAVE BEEN INCLUDED, HIT RETURN.

-->help

6
CONTROL CARDS THAT MAY BE USED WITH THE DATABASE PROGRAM INCLUDE;

CHANNELS

`• END

ENTER NEXT CONTROL CARD NAME, 'HELP', OR HIT RETURN TO EXIT

*END CARD INCLUDED*

GIVE THE OUTPUT SPECIFICATIONS AT THE NEXT PROMPT..

IS OUTPUT ON TAPE OR DISK? (T/D)

-->d

ENTER OUTPUT DATA SET NAME

-->MEN.P92250.FCL.forest.distl3.x,ast

ENTER NUMBER OF TRACKS FOR DATA SET

NUMBER OF TRACKS = 1 -1 (#CHAN * #ELEM * #LINES) / 10000

-->60

* END OF DISTRICT ACCESS METHOD *

ENTER JOB PARAMETER OPTION NUMBER(S) OR -HELP' FOR A LIST

OF OPTIONS. TO EXIT EXEC FILE, HIT RETURN.

** ,ACTIVE FILE NOW CONTAINS STEM FOR RUNNING THE DATABASE PROGRAM **

FOR INFORMATION ON RUNNING THE PROGRAM, ENTER 'HELP', OR HIT

RETURN TO EXIT.

** END OF ORSER EXEC FILE ***

exec from men.u4100.gmb.lib#orsergo on vol005 clr

$4EN.U4100.GMB.LIB NOT ON VOL005

EXEC FROM MEN.U4IOO.GMB.LIB# ORSERGO ON VOL005 CLR

ALTERS ? z0

14ELCOME TO THE ORSER SYSTEM.

OK TO CLEAR ACTIVE FILE? ok

ENTER PROGRAM NAME OR 'HELP' FOR A DETAILED LIST OF INSTRUCTIONS.

ENTER 'LISTTAPES' TO LIST WORKING TAPES (RS TAPES) ASSIGNED TO YOU.

ENTER 'POLYGON' TO EXECUTE ANY ORSER POLYGON PROGRAM.

ENTER 'DATABASE' TO ACCESS THE PENNSYLVANIA LANDSAT DATABASE.

ENTER 'EXIT' TO EXIT THIS EXEC FILE.

-->database

i
WELCOME TO THE PENNSYLVANIA LANDSAT DATABASE.

LANDSAT DATA CAN BE RETRIEVED BY COUNTY NAME (C), BY FOREST DISTRICT (D),

USER DEFINED POLYGON (U), OR BY PEST LO CATER GRID CELLS (P).

ENTER THE TYPE OF AREA TO BE RETRIEVED (C/D/U/P) OR TYPE 'HELP' FOR

MORE INFORMATION.

-->u

*** THE PENNSYLVANIA LANDSAT DATABASE. ***

ACCESSING AREA BY USER DEFINED POLYGON

DATA CAN BE RETRIEVED BY LINE AND ELEMENT AREA CARDS OR BY UTM AREA

CARDS. ENTER 'L' FOR LINE AND ELEMENT CARDS OR 'U' FOR UTM AREA CARDS

OR 'HELP' FOR MORE INFORMATION

-->help

ACCESSING LANDSAT DATA BY USER DEFINED POLYGONS

THIS SECTION OF THE DATABASE ALLOWS THE USER TO SPECIFY A POLYGON

BY AREA CARDS EITHER IN UTM COORDINATES OR IN LINE AND ELEMENTS

(MEASURED FROId THE LANDSAT MOSAIC). THE USER WILL BE PROMPTED

FOR THE DESIRED COORDINATE BASE (UTM OR LINE/ELEMENT) AND FOR

THE COORDINATE PAIRS FOR EACH POLYGON VERTEX. NOTE ---> THE FULL

UTM COORDINATES ARE TO BE GIVEN AT EACH PROMPT. HOWEVER THE VALUES

WILL BE TRUNCATED TO THE NEAREST 10TH METER. FOR EXAMPLE, THE PAIR

(4485837,590182) WILL APPEAR ON THE AREA CARD AS 'AREA 48584 59018'.

THE LEADING 4 FOR THE NORTHING [VALUE IS CONSTANT IN THE STATE AND

IS OMITTED.

(HIT RETURN TO CONTINUE)

THE USER IS THEN PROMPTED FOR ADDITIONAL CONTROL CARDS, WHICH.

WOULD INCLUDE THE FOLLOWING : CHANNELS, END

THE USER IS NEXT PROMPTED FOR A': OUTPUT TAPE TO RECEIVE THE

POLYGON DATA, AND FOR JOB OPTIONS. THE JOB STEM IS PLACED IN THE

USER'S ACTIVE FILE, READY FOR SUBMISSION TO THE COMPUTER.

DATA CAN BE RETRIEVED BY LINE AND ELEMENT AREA CARDS OR BY UTM AREA

CARDS. ENTER 'L' FOR LINE AND ELEMENT CARDS OR 'U' FOR UTM AREA CARDS

OR 'HELP' FOR MORE INFORMATION

AREA CARD

ENTER LINE AND ELEMENT NUMBERS IN THE FORM -->LINE, ELEMENT.

WHEN ALL COORDINATES HAVE BEEN ENTERED, HIT RETURN.

j -->3000 3000

-->4000 3000

-->4000 4000

-->3000 4000

__>

ENDAREA CARD INCLUDED
9

IF ADDITIONAL CONTROL CARDS ARE DESIRED, TYPE CONTROL CARD

NAME OR 'HELP' FOR A LIST OF APPLICABLE CARDS. WHEN ALL DESIRED

CARDS HAVE BEEN INCLUDED, HIT RETURN.

*END CARD INCLUDED*

GIVE THE OUTPUT SPECIFICATIONS AT THE NEXT PROMPT.

IS OUTPUT ON TAPE OR DISK? (T/D)

-->d

ENTER OUTPUT DATA SET NAME

-->MEN.P92250.FCL.subset

ENTER NUMBER OF TRACKS FOR DATA SET

NUMBER OF TRACKS - 1 + (#CHAN * #ELEM * #LINES) / 10000

-->24

* END OF POLYGON ACCESS METHOD *

ENTER JOB PARAMETER OPTION NUMBER(S) OR 'HELP - FOR A LIST

OF OPTIONS. TO EXIT EXEC FILE, HIT RETURN.

** ACTIVE FILE NOW CONTAINS STKM FOR RUNNING THE DATABASE PROGRAM **

FOR INFORMATION ON RUNNING THE PROGRAM, ENTER 'HELP', OR HIT

RETURN TO EXIT.'.

*** END OF ORSER EXEC FILE ***

? exec from mon.u41000.gmb.lib#orsergo on vo1005 clr

WELCOME TO THE ORSER SYSTEM.

OK TO CLEAR ACTIVE FILE? ok

ENTER PROGRAM NAME OR 'HELP' FOR A DETAILED LIST OF INSTRUCTIONS.

ENTER 'LISTTAPES' TO LIST WORKING TAPES (RE TAPES) ASSIGNED TO YOU.

ENTER 'POLYGON' TO EXECUTE ANY ORSER POLYGON PROGRAM.

ENTER 'DATABASE' TO ACCESS THE PENNSYLVANIA LANDSAT DATABASE.

ENTER 'EXIT' TO EXIT THIS EXEC FILE.

-->database

WELCOME TO THE PENNSYLVANIA LANDSAT DATABASE.

LANDSAT DATA CAN BE RETRIEVED BY COUNTY NAME (C), BY FOREST DISTRICT (D),

USER DEFINED POLYGON (U), OR BY PEST LOCATER GRID CELLS (P).

ENTER THE TYPE OF AREA TO BE RETRIEVED (C/D/U/P) OR TYPE 'HELP' FOR

MORE INFORMATION.

- ->p

* x * THE PENNSYLVANIA LANDSAT DATABASE ***

ACCESSING AREA BY THE PEST LOCATER GRID

ENTER THE LETTER FROM THE PA. HIGHWAY MAP OR ENTER 'HELP' FOR 

MORE INFORMATION

->k 
ENTER THE NUMBER FROM THE PA. HIGHWAY MAP

-->4

ENTER THE DESIRED QUAD NUMBER

-->3

• GIVE THE OUTPUT SPECIFICATIONS Xr THE NEXT PROMPT.

IS OUTPUT ON TAPE OR DISK? (T/D)

-->d

ENTER OUTPUT DATA SET NAME

-->MEN.P92250.FCL.k43

ENTER NUMBER OF TRACKS FOR DATA SET

NUMBER OF TRACKS - 1 + (#CHAN * #ELEM * #LINES) / 10000

-->10

IF ADDITIONAL CONTROL CARDS ARE DESIRED, TYPE CONTROL CARD

NAME OR 'HELP' FOR A LIST OF APPLICABLE CARDS. WHEN ALL DESIRED

CARDS HAVE BEEN INCLUDED, HIT RETURN.

-->

*END CARD INCLUDED*

ENTER JOB PARAMETER OPTION NUMBER(S) OR 'HELP' FOR A LIST

OF OPTIONS. TO EXIT EXEC FILE, HIT RETURN.

** ACTIVE FILE NOW CONTAINS STEM FOR RUNNING THE DATABASE PROGRAM **

FOR INFORMATION ON RUNNING THE PROGRAM, ENTER 'HELP', OR HIT

RETURN TO EXIT.

*** END OF ORSER EXEC FILE ***

? exec from men.u41000.gmb lib#orsergo on vol005 clr

WELCOME TO THE ORSER SYSTEM.

OK TO CLEAR ACTIVE FILE? ok

ENTER PROGRAM NAME OR 'HELP' FOR A DETAILED LIST OF INSTRUCTIONS.

ENTER 'LISTTAPES' TO LIST WORKING TAPES (RS TAPES) ASSIGNED TO YOU.

ENTER 'POLYGON' TO EXECUTE ANY ORSER POLYGON PROGRAM.

ENTER 'DATABASE' TO ACCESS THE PENNSYLVANIA LANDSAT DATABASE.

ENTER 'EXIT' TO EXIT THIS EXEC FILE.

-->nmapv

IS INPUT ON TAPE OR DISK (T/D)

-->d

ENTER INPUT DATA SET NAME

-->MEN.P92250 FCL.centre.west

ENTER THE LINE REPETITION FACTOR (UP TO 2 DIGITS, INTEGER FORMAT,

OR ENTER 'HELP' FOR MORE INFORMATION).

->help

THE SCALE OF THE FINAL OUTPUT MAP IS DETERMINED BY SEVERAL FACTORS.

ONE OF THESE FACTORS IS THE REPETITION FACTOR FOR TAB VERSATEC PLOTTER.

THE VERSATEC PLOTTER CAN OUTPUT UPTO 4200 PIXELS WITH A REPETITION

FACTOR OF 1, UPTO 2100 PIXELS WITH A REPETITION FACTOR OF 2, ETC.

AT A REPETITION FACTOR OF 1 THE VERSATEC OUTPUTS 200 PIXELS TO THE

INCH, WITH FACTOR OF 2, 100 PIXELS TO THE INCH, ETC.

10
. a

11

THEREFORE, TO GET THE MAXIMUM PICTURE SIZE FROM THE VERSATEC,

DETERMINE THE REPETITION FACTOR BY 4200 BY THE NUMBER OF ELEMENTS IN

THE OUTPUT MAP, USING THE INTEGER PORTION AS THE FACTOR. THIS

FACTOR MAY NOT YIELD THE BEST RESULTS AND SHOULD BE CHANGED

AT THE USERS DISCRETION.

(11IT RETURN TO CONTINUE)

MOST OFTEN THE REPETITION FACTOR IS THE SAME FOR LINES AND ELEMENTS

FOR SQUARE PIXELS. EITHER FACTOR CAN BE ADJUSTED TO COMPENSATE

FOR RECTANGULAR PIXELS.

THE FOLLOWING TABLE HAS BEEN CONSTRUCTED FOR SQUARE PIXELS WITH

A RESOLUTION OF 57 METERS (AS IN THE DATABASE PIXEL).

REPETITION FACTOR

"J.ffiSi 1lt g.t ^JRi3pt tm lCi t7.lt C61..

2

3

4

5

6

7

8

9

10

(HIT RETURN TO CONTINUE)

MAXIMUM NUMBER OF ELEMENTS SCALE

m=wmm=r ummmm m mm aQ msa exm mroa W====

4200 1:448,818

2100 1:224,409

1400 1:149 606

1050 1:112;205

840 1:89,764

700 1:74,803

600 1:64,117

525 1:56,102

466 1:49,869

420 1:44,882

THIS MAY SEEM A BIT CONFUSING . T11ATS BECAUSE ITS VERY CONFUSING.

ITS BEST TO SIT DOWN WITH A CALCULATOR AND FIGURE OUT WHAT YOUR

REPETITION FACTOR AND CORRESPONDING SCALE WILL BE FOR YOUR PIXELS.__

GOOD LUCK11

ENTER THE LINE REPETITION FACTOR (UP TO 2 DIGITS, INTEGER FORMAT,

OR ENTER 'HELP' FOR MORE INFORMATI,ON).

-->2

ENTER THE ELEMENT REPETITION FACTOR

ENTER THE BACKGROUND CRAY SCALE LEVEL (FOR 'SUBOUNDED' AREAS

THE DEFAULT IS 0, UP TO 3 DIGITS IN INTEGER FORMAT)

--->255

IF ADDITIONAL CONTROL CARDS ARE DESIRED, TYPE CONTROL CARD

NAME OR '11ELP' FOR A LIST OF APPLICABLE CARDS. WHEN ALL DESIRED

CARDS HAVE BEEN INCLUDED, HIT RETURN.

— >11elp

CONTROL CARDS THAT MAY BE USED WITH THE NMAPV PROGRAM INCLUDE:
BLOCK

CHANNELS

CLASS

FLIGHT

LEVEL

MAP

NOMAP

PCTCLASS

RECAL

TITLE

END

ENTER NEXT CONTROL CARD NAME, - HELP', OR HIT RETURN TO EXIT

*END CARD INCLUDED*

C

ENTER JOB PARAMETER OPTION NUMBER(S) OR 'HELP' FOR A LIST

OF OPTIONS. TO EXIT EXEC FILE, HIT RETURN.

__X

** ACTIVE FILE NOW CONTAINS STEM FOR RUNNING THE NMAPV PROGRAM ^'t*

FOR INFORMATION ON RUNNING THE PROGRAM, ENTER 'HELP', OR HIT

RETURN TO EXIT.

*** END OF ORSER EXEC FILE ***

? run unn

JOB 3109 MN2FCL04 IN JCL CONVERSION

? logon clr

3.89 SECONDS EDITING TIME

337 PAGE READS, 910 PAGE WRITES

310 DISK READS, 0 DISK WRITES

SESSION MNC16404, P92250, FCL OFF AT 16:27, $000.76

ELAPSED TIME = 00:24:08

END OF SESSION

12
APPENDIX B: EXAMPLES OF VERSATLC OUT-PUT
"IFi

ORIGINAL PAGE

BLACK AND WHITE PHOTOGRAPH

ELK COUNTY SUBSET

NMAP (BRIGHTNESS MAP)

OF ALL FOUR BANDS

FIGHT UNIFORM PERCENT CLASSES

Scale 1:450,000

f. o

'• ,^, •

Ir

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