NASA/TMm2000-209891, Vol. 105

Technical Report Series on the

Boreal Ecosystem-Atmosphere Study (BOREAS)

Forrest G. Hall, Editor

Volume 105

BOREAS Elevation Contours over the

NSA and SSA in ARC/INFO Generate Format

David Knapp and Jaime Nickeson, Raytheon ITSS,

NASA Goddard Space Flight Center, Greenbelt, Maryland

National Aeronautics and

Space Administration

Goddard Space Flight Center

Greenbelt, Maryland 20771

September 2000

https://ntrs.nasa.gov/search.jsp?R=20010022497 2018-05-14T18:49:35+00:00Z
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NASA/TMm2000-209891, Vol. 105

Technical Report Series on the

Boreal Ecosystem-Atmosphere Study (BOREAS)

Forrest G. Hall, Editor

Volume 105

BOREAS Elevation Contours over the

NSA and SSA in ARC/INFO Generate Format

David Knapp and Jaime Nickeson, Raytheon ITSS,

NASA Goddard Space Flight Center, Greenbelt, Maryland

National Aeronautics and

Space Administration

Goddard Space Flight Center

Greenbelt, Maryland 20771

September 2000
NASA Center for AeroSpace Information

7121 Standard Drive

Hanover, MD 21076-1320

Price Code: A17

Available from:

National Technical Information Service

5285 Port Royal Road

Springfield, VA 22161

Price Code: A10
BOREAS Elevation Contours over the NSA and SSA in ARC/INFO

Generate Format

David Knapp, Jaime Nickeson

Summary

This data set was prepared by BORIS Staff by reformatting the original data into the ARC/INFO

Generate format. The original data were received in SIF at a scale of 1:50,000. BORIS staff could not

find a format document or commercial software for reading SIF; the BOREAS HYD-08 team provided

some C source code that could read some of the SIF files. The data cover the BOREAS NSA and

SSA. The original data were compiled from information available in the 1970s and 1980s. The data are

available in ARC/INFO Generate format files.

Note that the files of this data set on the BOREAS CD-ROMs have been compressed using the

Gzip program. See Section 8.2 for details.

Table of Contents

1) Data Set Overview

2) Investigator(s)

3) Theory of Measurements

4) Equipment

5) Data Acquisition Methods

6) Observations

7) Data Description

8) Data Organization

9) Data Manipulations

10) Errors

11) Notes

12) Application of the Data Set

13) Future Modifications and Plans

14) Software

15) Data Access

16) Output Products and Availability

17) References

18) Glossary of Terms

19) List of Acronyms

20) Document Information

1. Data Set Overview

1.1 Data Set Identification

BOREAS Elevation Contours over the NSA and SSA in ARC/INFO Generate Format

1.2 Data Set Introduction

This vector contour data set was prepared by BOReal Ecosystem-Atmosphere Study (BOREAS)

staff by reformatting the original data into the ARC/INFO Generate format. These data cover portions

of the BOREAS Northern Study Area (NSA) and Southern Study Area (SSA) and are on a scale of

1:50,000.

Page 1
1.3 Objective/Purpose

These data are provided as part of the BOREAS Staff Science Geographic Information System

(GIS) Data Collection Program, which included the collection of pertinent map data in both hardcopy

and digital form. The purpose of these data is to provide the user with elevation contours of the

Modeling Sub-Areas (MSAs). These data can be used to create Digital Elevation Models (DEMs) of the

MSAs. The original Standard Interchange Format (SIF) data were reformatted to the ARC/INFO

Generate format because it was considered difficult for an average user to extract the contours from the

SIF files.

1.4 Summary of Parameters

The parameters that are in the reformatted data are the elevation of the contour (meters above mean

sea level) and North American Datum of 1983 (NAD83) Universal Transverse Mercator (UTM)

coordinate pairs (easting and northing) along the contour.

1.5 Discussion

Based on information available to BOREAS Information System (BORIS) personnel, these data

were manually digitized from the National Topographic System (NTS) map sheets at a scale of

1:50,000. The data were given to BORIS staff in SIF and K8A (the meaning of K8A is unknown)

formats. C source code provided by the BOREAS Hydrology (HYD)-08 team was modified to read

the contour data from various files. The input data were understood to be in a standard format, but they

were not standard in terms of the software's ability to consistently read all of the data files.

1.6 Related Data Sets

BOREAS HYD-08 DEM Data over the NSA-MSA and SSA-MSA in the UTM Projection

2. Investigator(s)

2.1 Investigator(s) Name and Title

David Knapp

BORIS Staff Member

2.2 Title of Investigation

BOREAS Staff Science GIS Data Collection Program

2.3 Contact Information

Contact 1:

David Knapp

Raytheon ITSS

NASA GSFC

Code 923

Greenbelt, MD 20771

(301) 286-1424

David.Knapp@ gsfc.nasa.gov

Contact 2:

Jaime Nickeson

Raytheon ITSS

NASA GSFC

Code 923

Greenbelt, MD 20771

(301) 286-3373

Jaime.Nickeson@ gsfc.nasa.gov

Page 2
3. Theory of Measurements

These data were not collected with any particular research in mind.

4. Equipment

4.1 Sensor/Instrument Description

Unknown.

4.1.1 Collection Environment

Unknown.

4.1.2 Source/Platform

Unknown.

4.1.3 Source/Platform Mission Objectives

The implied purpose of the NTS 1:50,000-scale map sheets was to provide users with needed

location and topographic information.

4.1.4 Key Variables

Elevation above mean sea level NAD83 UTM coordinate pairs.

4.1.5 Principles of Operation

Unknown.

4.1.6 Sensor/Instrument Measurement Geometry

Unknown.

4.1.7 Manufacturer of Sensor/Instrument

Unknown.

4.2 Calibration

4.2.1 Specifications

Unknown.

4.2.1.1 Tolerance

Unknown.

4.2.2 Frequency of Calibration

Unknown.

4.2.3 Other Calibration Information

None.

5. Data Acquisition Methods

The data were acquired from the National Topographical Data Base and received from the Canadian

Centre for Remote Sensing (CCRS). The original data came in SIF, digitized from 1:50,000-scale

topographic maps.

Page 3
6.1 Data Notes

None.

6.2 Field Notes

None.

6. Observations

7. Data Description

7.1 Spatial Characteristics

7.1.1 Spatial Coverage

The various data files cover parts of the BOREAS NSA-MSA and SSA-MSA. The two areas that

are covered by these vector files include an area west of Thompson, Manitoba (NSA), and an area

north of Prince Albert, Saskatchewan (SSA). Each of the following maps covers an area roughly 31.5

km x 27.8 kin. The following NTS map sheets are covered by the data:

For the NSA:

Number Name

63 O/i0 Wuskwatim Lake

63 O/15 Nelson House

63 O/16 Noble Lake

63 0/09 Ospwagan Lake

63 P/14 Begg Lake

64 A/03 Orr Lake

64 A/04 Strong Lake

64 B/01 Harding Lake

64 B/02 Leftrook Lake

For the SSA:

Number Name

73 G/09 Halkett Lake

73 G/16 Waskesiu Lake

73 H/09 Torch River

73 H/10 Bedard Creek

73 H/II Birchbark Lake

73 H/12 Emma Lake

73 H/13 Bittern Lake

73 H/14 Candle Lake

73 H/15 White Gull Creek

73 H/16 Falling Horse Creek

73 1/01 Scarth River

73 1/02 Summit Lake

73 1/03 Whiteswan Lake

73 1/04 Montreal Lake South

73 J/01 Crean Lake

Page 4
Theareacoveredby thesesheetsdoesnot coverall of theareadescribedby thefollowing NAD83

boundingcoordinates.Theseboundingareasareprovidedto giveageneralideaof wherethesemap

sheetsfall.

NSA-HSA

Longitude Latitude

Northwest 98.72W 56.055N

Northeast 98.09W 55.990N

Southeast 98.18W 55.726N

Southwest 98.81W 55.790N

SSA-MSA

Longitude Latitude

Northwest I05.18W 54.093N

Northeast I04.42W 54.053N

Southeast I04.48W 53.695N

Southwest I05.23W 53.735N

7.1.2 Spatial Coverage Map

Not available.

7.1.3 Spatial Resolution

The original contour interval of the data is 25 feet (7.62 m).

7.1.4 Projection

The data are in their original UTM projection. The NSA data are in UTM zone 14, and the SSA

data are in UTM zone 13.

7.1.5 Grid Description

Quantitative estimates were not made of the mean spacing between points along the contour lines.

Visual assessment of the data showed the spacing to be appropriate for the 1:50,000 scale (i.e., there

was no noticeable jaggedness or discontinuities along the contours).

7.2 Temporal Characteristics

7.2.1 Temporal Coverage

Information regarding when the original source data were collected is sketchy. Most of the maps

from which these contours were digitized were made in the 1970s or 1980s.

7.2.2 Temporal Coverage Map

Not available.

7.2.3 Temporal Resolution

Although these data were likely compiled from map and aerial photograph vintages covering l0 or

more years, they are considered to be a single reference data set.

7.3 Data Characteristics

7.3.1 Parameter/Variable

Elevation above mean sea level

NAD83 UTM coordinate pairs along a given elevation contour

Page 5
7.3.2 Variable Description/Definition

Elevation above mean sea level - The vertical distance between a plane at mean sea level and a

parallel plane intersecting this point. NAD83 UTM coordinate pairs along a given elevation contour -

The NAD83-based UTM easting and northing coordinate pairs that define the geographic locations

over which the given contour exists.

7.3.3 Unit of Measurement

Elevation above mean sea level - meters

NAD83 UTM coordinate pairs along a given elevation contour - UTM meters

7.3.4 Data Source

Geomatics Canada

Natural Resources Canada

615 Booth St.

Ottawa, Ontario K1A 0E9 CANADA

7.3.5 Data Range

NSA-MSA

Elevation

(meters)

Minimum: 206

Maximum: 381

SSA-MSA

Elevation

(meters)

Minimum: 335

Maximum: 747

7.4 Sample

442

533084.00

533079 00

533061 00

533033 00

532950 00

532877 00

532849 00

532784 00

532747 00

532714 00

532539 00

END

Data Record

5939891.00

5939891 00

5939889 00

5939897 00

5939902 00

5939910 00

5939918 00

5939950 00

5939991 00

5940015 00

5940100 00

Page 6
8. Data Organization

8.1 Data Granularity

The smallest amount of data obtainable is the entire set of vector contour files.

8.2 Data Format(s)

8.2.1 Uncompressed Data Files

The vector contour data set consists of a set of 24 files in the following order:

File i

File 2

File 3

File 4

File 5

File 6

File 7

File 8

File 9

File i0

File ii

File 12

File 13

File 14

File 15

Data for Hap 73 G/09

Data for Hap 73 G/16

Data for Hap 73 H/09

Data for Map 73 H/10

Data for Map 73 H/II

Data for Map 73 H/12

Data for Map 73 H/13

Data for Map 73 H/14

Data for Map 73 H/15

Data for Map 73 H/16

Data for Map 73 1/01

Data for Map 73 1/02

Data for Map 73 1/03

Data for Map 73 1/04

Data for Map 73 J/01

(400 bytes per record

(400 bytes per record

(400 bytes per record

(400 bytes per record

(400 bytes per record

(400 bytes per record

(400 bytes per record'

(400 bytes per record

(400 bytes per record

(400 bytes per record

(400 bytes per record

(400 bytes per record

(400 bytes per record

(400 bytes per record

(400 bytes per record

SSA

File 16 Data for Map 63 0/09

File 17 Data for Map 63 O/i0

File 18: Data for Map 63 O/15

File 19: Data for Map 63 O/16

File 20: Data for Map 63 P/14

File 21: Data for Map 64 A/03

File 22: Data for Map 64 A/04

File 23: Data for Map 64 B/01

File 24: Data for Map 64 B/02

(400 bytes per record) NSA

(400 bytes per record)

400 bytes per record)

400 bytes per record)

400 bytes per record)

400 bytes per record)

400 bytes per record)

400 bytes per record)

(400 bytes per record)

The 24 data files each contain maximum record sizes of 400 bytes. Each physical record on tape

consists of 1 to 10 logical records of 40 bytes each. As noted previously, the data in the files are stored

in the ARC/INFO Generate format. Within each file, the data in the 40-byte logical records are stored

as American Standard Code for Information Interchange (ASCII) characters. The records are arranged

in groups that contain varying numbers of records. The first record of the group contains the value for

the elevation above mean sea level. This is followed by the records containing the UTM easting and

northing coordinate pairs for that elevation contour. At the end of each contour, a record containing the

ASCII characters 'END' indicates the end of the contour. A second record containing the ASCII

'END' characters is given at the end of the contour groups to indicate the end of the file. The following

listing illustrates this format.

442

533084.00

533079.00

533061.00

533033.00

532950.00

532877.00

5939891 00

5939891 00

5939889 00

5939897 00

5939902 00

5939910 00

<

This is the contour's elevation (meters)

This is the first of a series of UTM

coordinates (easting, northing) that

define the contour.

Page 7
532849.00,

532784.00,

532747.00,

532714.00,

532539.00,

END

465

531985 00

531985 00

531972 00

531950 00

531899 00

531853 00

531774 00

531744 00

531734.00,

531745.00,

531766.00,

END

END

5939918

5939950

5939991

5940015

5940100

5953858

5953866

5953881

5953891

5953894

5953913

5953915

5953899

00

00

00

00

00

00

00

00

00

00

00

00

00

< This marks the end of this contour.

<- The elevation of the next contour.

5953875

5953826

5953808

00

00

00

< ..... This marks the end of this contour.

< ..... This marks the end of the file.

8.2.2 Compressed CD-ROM Files

On the BOREAS CD-ROMs, all the files listed in Section 8.2.1 have been compressed with the

Gzip compression program (file name *.gz). These data have been compressed using gzip version

1.2.4 and the high compression (-9) option (Copyright (C) 1992-1993 Jean-loup Gailly). Gzip (GNU

zip) uses the Lempel-Ziv algorithm (Welch, 1994) used in the zip and PKZIP programs. The

compressed files may be uncompressed using gzip (-d option) or gunzip. Gzip is available from many

Web sites (for example, ftp site prep.ai.mit.edu/pub/gnu/gzip-*.*) for a variety of operating systems in

both executable and source code form. Versions of the decompression software for various systems

are included on the CD-ROMs.

9. Data Manipulations

9.1 Formulae

The only data value conversion performed by BORIS staff was to convert the elevation

measurements in feet in some (not all) of the files to meters. This was done by dividing the elevation

values of feet by 3.28 and then rounding the result.

9.2 Data Processing Sequence

9.2.1 Processing Steps

BORIS staff processed the original data to the current product by:

• Attempting to read a file with the provided software

• Modifying the C source code and updating the file header to read the specific file

• Running the program to extract contours from the file and create output files

• Writing the output files to tape

• Copying the ASCII and compressing the binary files for release on CD-ROM

9.2.2 Processing Changes

None.

Page 8
9.3 Calculations

9.3.1 Special Corrections/Adjustments

There appeared to be two types of files in the original set. In many cases, the header information in

each file had to be modified in order for the modified software to extract the contours successfully.

9.3.2 Calculated Variables

See Section 9.1.

9.4 Graphs and Plots

None.

10. Errors

10.1 Sources of Error

One source of error is the digitizing process used to create the contours from the map sheets. It is

not known whether the maps were hand digitized or if software was used to digitize the contours. In

either case, the error is probably negligible.

10.2 Quality Assessment

10.2.1 Data Validation by Source

Unknown.

10.2.2 Confidence Level/Accuracy Judgment

Unknown.

10.2.3 Measurement Error for Parameters

Unknown.

10.2.4 Additional Quality Assessments

None.

10.2.5 Data Verification by Data Center

After extracting the data into the ARC/INFO Generate files, BORIS staff plotted the contour data

and visually reviewed the data with the 1:50,000-scale hardcopy maps. No anomalies or errors were

detected in this review.

11. Notes

11.1 Limitations of the Data

Because the data have a 25-foot contour interval, variations in the terrain that are smaller than 25

feet may not be detectable. The user should not expect to see terrain detail such as small berms or other

minor topographic relief.

11.2 Known Problems with the Data

The NSA maps from which these data were derived were found to be in disagreement with

BOREAS-gathered and differentially corrected Global Positioning System (GPS) coordinates by about

150 meters. The error did not appear to be systematic. The SSA maps have a higher degree of accuracy

(about 45 meters) when compared to GPS.

Page 9
11.3 Usage Guidance

If these data are going to be used to create a DEM, the various vector files should be edge-matched

to create seamless contours that do not have discontinuities at the map boundaries.

Before uncompressing the Gzip files on CD-ROM, be sure that you have enough disk space to

hold the uncompressed data files. Then use the appropriate decompression program provided on the

CD-ROM for your specific system.

11.4 Other Relevant Information

None.

12. Application of the Data Set

These data can be used to create a gridded DEM of the area of interest as well as for graphical

purposes, as an overlay along with other vector layers.

None.

13. Future Modifications and Plans

14. Software

14.1 Software Description

C source code from HYD-08 was used for converting from SIF or K8A format. The software to

read the SIF and K8A was originally produced by an unknown source, although it was obtained from

HYD-08. The software reads the input file and extracts certain features based on feature codes that are

supplied by the user.

Gzip (GNU zip) uses the Lempel-Ziv algorithm (Welch, 1994) used in the zip and PKZIP

commands.

14.2 Software Access

The software is written in C and is operational on UNIX workstations at GSFC. The software is

available by contacting the ORNL DAAC or BOREAS staff.

Gzip is available from many Web sites across the Internet (for example, ftp site

prep.ai.mit.edu/pub/gnu/gzip-*.*) for a variety of operating systems in both executable and source

code form. Versions of the decompression software for various systems are included on the

CD-ROMs.

15. Data Access

The elevation contour data over the NSA and SSA in ARC/INFO Generate format are available from

the Earth Observing System Data and Information System (EOSDIS) Oak Ridge National Laboratory

(ORNL) Distributed Active Archive Center (DAAC).

Page 10
15.1 Contact Information

For BOREAS data and documentation please contact:

ORNL DAAC User Services

Oak Ridge National Laboratory

P.O. Box 2008 MS-6407

Oak Ridge, TN 37831-6407

Phone: (423) 241-3952

Fax: (423) 574-4665

E-mail: ornldaac@ornl.gov or ornl@eos.nasa.gov

15.2 Data Center Identification

Earth Observing System Data and Information System (EOSDIS) Oak Ridge National Laboratory

(ORNL) Distributed Active Archive Center (DAAC) for Biogeochemical Dynamics

http://www-eosdis.ornl.gov/.

15.3 Procedures for Obtaining Data

Users may obtain data directly through the ORNL DAAC online search and order system

[http://www-eosdis.ornl.gov/] and the anonymous FTP site [ftp://www-eosdis.ornl.gov/data/] or by

contacting User Services by electronic mail, telephone, fax, letter, or personal visit using the contact

information in Section 15.1.

15.4 Data Center Status/Plans

The ORNL DAAC is the primary source for BOREAS field measurement, image, GIS, and

hardcopy data products. The BOREAS CD-ROM and data referenced or listed in inventories on the

CD-ROM are available from the ORNL DAAC.

16. Output Products and Availability

16.1 Tape Products

The vector contour data can be made available on 8-ram, Digital Archive Tape (DAT), or 9-track

tapes at 1600 or 6250 Bytes Per Inch (BPI).

16.2 Film Products

None.

16.3 Other Products

These data are available on the BOREAS CD-ROM series.

17. References

17.1 Platform/Sensor/Instrument/Data Processing Documentation

Welch, T.A. 1984. A Technique for High Performance Data Compression. IEEE Computer, Vol. 17,

No. 6, pp. 8-19.

17.2 Journal Articles and Study Reports

Newcomer, J., D. Landis, S. Conrad, S. Curd, K. Huemmrich, D. Knapp, A. Morrell, J. Nickeson,

A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and P. Sellers, eds. 2000. Collected Data of The

Boreal Ecosystem-Atmosphere Study. NASA. CD-ROM.

Page 11
Sellers,P.andF.Hall. 1994.BorealEcosystem-AtmosphereStudy:ExperimentPlan.Version

1994-3.0,NASA BOREASReport(EXPLAN 94).

Sellers,P.andF.Hall. 1996.BorealEcosystem-AtmosphereStudy:ExperimentPlan.Version

1996-2.0,NASA BOREASReport(EXPLAN 96).

Sellers,P.,F. Hall, andK.F. Huemmrich.1996.BorealEcosystem-AtmosphereStudy:1994

Operations.NASA BOREASReport(OPSDOC94).

Sellers,P.,F. Hall, andK.F. Huemmrich.1997.BorealEcosystem-AtmosphereStudy:1996

Operations.NASA BOREASReport(OPSDOC96).

Sellers,P.,F. Hall, H. Margolis,B. Kelly, D. Baldocchi,G. denHartog,J.Cihlar, M.G. Ryan,B.

Goodison,P.Crill, K.J.RansomD. Lettenmaier,andD.E. Wickland. 1995.Theboreal

ecosystem-atmospherestudy(BOREAS):anoverviewandearlyresultsfrom the1994field year.

Bulletinof theAmericanMeteorologicalSociety.76(9):1549-1577.

Sellers,P.J.,F.G.Hall, R.D.Kelly, A. Black, D. Baldocchi,J. Berry, M. Ryan,K.J. Ranson,P.M.

Crill, D.P.Lettenmaier,H. Margolis,J.Cihlar, J.Newcomer,D. Fitzjarrald,P.G.Jarvis,S.T.

Gower,D. Halliwell, D. Williams, B. Goodison,D.E.Wickland, andF.E.Guertin.1997.BOREAS

in 1997:ExperimentOverview,ScientificResultsandFutureDirections.Journalof Geophysical

Research102(D24):28,731-28,770.

17.3 Arehive/DBMS Usage Documentation

None.

None.

18. Glossary of Terms

19. List of Acronyms

ASCII - American Standard Code for Information Interchange

BOREAS - Boreal Ecosystem-Atmosphere Study

BORIS - BOREAS Information System

BPI - Bytes Per Inch

CCRS - Canadian Centre for Remote Sensing

CD-ROM - Compact Disk-Read-Only-Memory

DAAC - Distributed Active Archive Center

DAT - Digital Audio Tape

DEM - Digital Elevation Model

EOS - Earth Observing System

EOSDIS - EOS Data and Information System

GIS - Geographic Information System

GMT - Greenwich Mean Time

GPS - Global Positioning System

GSFC - Goddard Space Flight Center

MSA - Modeling Sub-Area

NAD27 - North American Datum of 1927

NAD83 - North American Datum of 1983

NASA - National Aeronautics and Space Administration

NSA - Northern Study Area

Page 12
NTS

ORNL

PANP

SlF

SSA

URL

UTM

WWW

- National Topographic System

- Oak Ridge National Laboratory

- Prince Albert National Park

- Standard Interchange Format

- Southern Study Area

- Uniform Resource Locator

- Universal Transverse Mercator

- World Wide Web

20. Document Information

20.1 Document Revision Date(s)

Written: 09-Jun- 1995

Last Updated: 05-Feb- 1999

20.2 Document Review Date(s)

BORIS Review: 06-Jun- 1997

Science Review:

20.3 Document ID

20.4 Citation

When using these data, please include the following acknowledgement as well as citations of

relevent papers in Section 17.2:

These data originated as vector data that were provided to BORIS staff through CCRS by

Geomatics Canada. The contribution of the data by CCRS and Geomatics Canada and processing of

the data by BORIS staff are greatly appreciated.

If using data from the BOREAS CD-ROM series, also reference the data as:

Knapp, D. and J. Nickeson,"BOREAS Staff Science GIS Data Collection Program." in Collected

Data of The Boreal Ecosystem-Atmosphere Study. Eds. J. Newcomer, D. Landis, S. Conrad, S.

Curd, K. Huemmrich, D. Knapp, A.Morrell, J. Nickeson, A. Papagno, D. Rinker, R. Strub, T.

Twine, F. Hall, and P. Sellers. CD-ROM. NASA, 2000.

Also, cite the BOREAS CD-ROM set as:

Newcomer, J., D. Landis, S. Conrad, S. Curd, K. Huemmrich, D. Knapp, A. Morrell, J.

Nickeson, A. Papagno, D. Rinker, R. Strub, T. Twine, F. Hall, and P. Sellers, eds. Collected Data of

The Boreal Ecosystem-Atmosphere Study. CD-ROM. NASA, 2000.

20.5 Document Curator

20.6 Document URL

Page 13
REPORT DOCUMENTATION PAGE FormApproved

OMB No. 0704-0188

Public reporting burden for this collection of informationis estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources,

gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this

collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson

Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503.

1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED

September 2000 Technical Memorandum

4. TITLE AND SUBTITLE 5. FUNDING NUMBERS

Technical Report Series on the Boreal Ecosystem-Atmosphere Study (BOREAS)

BOREAS Elevation Contours over the NSA and SSA in ARC/INFO

Generate Format

6. AUTHOR(S)

David Knapp and Jaime Nickeson

Forrest G. Hall, Editor

7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS (ES)

Goddard Space Flight Center

Greenbelt, Maryland 20771

9. SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS (ES)

National Aeronautics and Space Administration

Washington, DC 20546-0001

923

RTOP: 923-462-33-01

8. PEFORMING ORGANIZATION

REPORT NUMBER

2000-03136-0

10. SPONSORING / MONITORING

AGENCY REPORT NUMBER

TM--2000-209891

Vol. 105

11. SUPPLEMENTARY NOTES

D. Knapp and J. Nickeson: Raytheon ITSS, NASA Goddard Space Flight Center, Greenbelt, Maryland

12a. DISTRIBUTION / AVAILABILITY STATEMENT

Unclassifie_Unlimited

Subject Category: 43

Report available from the NASA Center for AeroSpace Information,

7121 Standard Drive, Hanover, MD 21076-1320. (301) 621-0390.

12b. DISTRIBUTION CODE

13. ABSTRACT (Maximum 200 words)

This data set was prepared by BORIS Staff by reformatting the original data into the ARC/INFO

Generate format. The original data were received in SIF at a scale of 1:50,000. BORIS staff could not

find a format document or commercial software for reading SIF; the BOREAS HYD-08 team provided some C source code that could read some of the SIF files. The data cover the BOREAS NSA

and SSA. The original data were compiled from information available in the 1970s and 1980s. The

data are available in ARC/INFO Generate format files.

14. SUBJECT TERMS

BOREAS, remote sensing science.

17. SECURITY CLASSIFICATION

OF REPORT

Unclassified

NSN 7540-01-280-5500

18. SECURITY CLASSIFICATION

OF THIS PAGE

Unclassified

19. SECURITY CLASSIFICATION

OF ABSTRACT

Unclassified

15. NUMBER OF PAGES

13

16. PRICE CODE

20. LIMITATION OF ABSTRACT

UL

Standard Form 298 (Rev. 2-89)

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