BOREAS Forest Cover Data Layers over the SSA-MSA in Raster Format

Summary

This data set was prepared by BORIS staff by processing the original
vector data into raster files. The original data were received as
ARC/INFO coverages or as export files from SERM. The data include
information on forest parameters for the BOREAS SSA MSA. The data are
stored in binary, image format files.

Note that the binary 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 Forest Cover Data Layers over the SSA-MSA in Raster Format

1.2 Data Set Introduction

The forest cover data layers were created in raster form from the vector
polygon forest cover data provided by Saskatchewan Environment and
Resource Management, Forestry Branch - Inventory Unit (SERM-FBIU). The
forest cover data layers created for this product are species cover,
canopy closure, height, and year.

1.3 Objective/Purpose

These data are provided as part of the BOReal Ecosystem-Atmosphere Study
(BOREAS) Staff Science Geographical Information system (GIS) Data
Collection Program, which included the collection of pertinent map data
in both hard copy and digital form. This data set, originally provided
as vector polygons with attributes, has been processed to provide raster
files that can be used for modeling or for comparison purposes.

1.4 Summary of Parameters

The parameters that are in the raster data include species association
(cover type), crown closure, height class, and decadal year of stand
origin or disturbance.

1.5 Discussion

Based on a review of the data and discussions with SERM personnel and
BOREAS scientists, BOREAS Information System (BORIS) staff processed the
original vector data into raster data layers. A full description of the
data layer derivations is given in Section 9.

1.6 Related Data Sets

BOREAS Forest Cover Data Layers of the NSA-MSA in Raster Format

SERM Forest Cover Data Layers of the SSA in Vector Format

SERM Forest Fire Chronology of Saskatchewan in Vector Format

SERM Forest Cover Data of Saskatchewan in Vector Format

Prince Albert National Park Forest Cover Data in Vector Format

2\. Investigator(s)

2.1 Investigator(s) Name and Title

BOREAS Staff

2.2 Title of Investigation

BOREAS Staff Science GIS Data Collection Program

2.3 Contact Information

Contact 1

\-\-\-\-\-\-\-\-\--

Fern Gruszka

Saskatchewan Environment and Resource Management

Prince Albert, SK

CANADA

(306)953-2360

gruszka@larix.derm.gov.sk.ca

Contact 2

\-\-\-\-\-\-\-\-\--

Jaime Nickeson

NASA/GSFC

Greenbelt, MD

\(301\) 286-3373

\(301\) 286-0239 (fax)

Jaime.Nickeson@gsfc.nasa.gov

3\. Theory of Measurements

SERM-FBIU maintains in its inventory unit a GIS of forest inventory
information for Saskatchewan. This inventory is maintained primarily for
use by forest managers for silvicultural purposes, and it contains a
wealth of information that can be of use in Earth resources analyses and
ecosystem modeling either in its raw form or as a derived product such
as this one.

4\. Equipment

4.1 Sensor/Instrument Description

The original polygon data were digitized from 1:12,500-scale forest
cover maps. The maps were derived from black-and-white 1:12,500-scale
infrared aerial photography and field reconnaissance notes. No
information is known about the original digitizing equipment or
procedures and criteria used in the digitizing process.

4.1.1 Collection Environment

These original vector data were acquired as ARC/INFO vector coverages or
in ARC/INFO export format. The data were produced by SERM-FBIU. No
specific information other than the scale of the resulting photography
is known about the aircraft flights or the equipment that was used to
collect the aerial photography.

4.1.2 Source/Platform

Unknown.

4.1.3 Source/Platform Mission Objectives

Unknown.

4.1.4 Key Variables

The key variables of this data set are species cover, crown closure,
height class, and decadal year of stand origin or disturbance.

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

Unknown.

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

SERM personnel created the forest cover maps by transcribing information
from photo-interpreted 1:12,500-scale black-and-white infrared aerial
photography and field reconnaissance notes.

6\. Observations

6.1 Data Notes

None.

6.2 Field Notes

The field notes used in compiling the original forest cover data are
available from SERM-FBIU. See Section 2.3.

7\. Data Description

7.1 Spatial Characteristics

7.1.1 Spatial Coverage

This data set covers a portion of the BOREAS Southern Study Area (SSA)
and encompasses most of the associated SSA-Modeling Sub-Area (MSA).

The corners of the actual raster data files are:

BOREAS BOREAS West North

Point X (km) Y (km) Longitude Latitude

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

Upper Right 425.160 360.840 104.49043 54.06416

Upper Left 381.870 360.840 105.14995 54.09860

Lower Left 381.870 326.490 105.19373 53.79137

Lower Right 425.160 326.490 104.53910 53.75717

These locations represent the outside corners of the corner pixels.

7.1.2 Spatial Coverage Map

Not available.

7.1.3 Spatial Resolution

These data were gridded to a cell size of 30 m.

7.1.4 Projection

The area mapped is projected in the BOREAS grid projection, which is
based on the ellipsoidal version of the Albers Equal-Area Conic (AEAC)
projection. The projection has the following parameters:

Datum: North American Datum 1983 (NAD83)

Ellipsoid: Geodetic Reference System GRS80 or WGS84

Origin: 111.000° West Longitude

51.000° North Latitude

Standard Parallels: 52° 30\' 00\" N

58° 30\' 00\" N

Units of Measure: kilometers

7.1.5 Grid Description

The data are gridded in 30-m intervals based on the ellipsoidal version
of the AEAC projection with standard parallels of 52° 30\' N and 58°
30\' N and a lower left origin of 51° N and 111° W.

7.2 Temporal Characteristics

Most of the data used for this product were acquired by BORIS in 1993.
The maps from which the data are derived are completely reinventoried on
a 10 to 20-year cycle by SERM, except for disturbed areas, which are
updated annually. BORIS acquired the data in 1993; the forest cover
layers have not yet had any inventory updates.

7.2.1 Temporal Coverage

These maps were produced from aerial photography taken as recently as
1988. The data base maintained by SERM is updated as needed based on
fires, cutting, or other disturbances.

7.2.2 Temporal Coverage Map

Not available.

7.2.3 Temporal Resolution

As noted, the original maps are completely reinventoried by SERM
personnel on a 10- to 20-year cycle, except for disturbed areas, which
are updated annually. The photographs and other information used to
create the original vector data set most likely covered the 10- to
20-year period prior to 1988 and any updates made from then to 1993,
when the data were acquired.

7.3 Data Characteristics

7.3.1 Parameter/Variable

Species Association (cover type)

Crown Closure

Height Class

Year of Stand Origin or Disturbance

7.3.2 Variable Description/Definition

Species Association - The vegetative species association covering the
given area as derived by BORIS personnel. See Section 9 for derivation
details.

Crown Closure: The crown closure category specified in the original data
set. See Section 9 for derivation details.

Height Class: The height class of the vegetation covering the area. See
Section 9 for class details.

Year of Stand Origin or Disturbance: The decade in which the vegetation
in the area originated or the year it was last disturbed. See Section 9
for coding details.

7.3.3 Unit of Measurement

The values in each of the data layers are described as follows:

SPECIES ASSOCIATION (COVER TYPE)

Binary Number

value in file Definition

\-\-\-\-- \-\-\-\-\-\-- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

0 317185 border pixels

11 3415 White Spruce (WS)

12 169411 Black Spruce (BS)

13 171532 Jack Pine (JP)

14 10126 Tamarack (TL)

21 202620 Spruce/Pine

31 24728 Mix Spruce Fir/Broadleaf

32 156003 Mix Jack Pine/Broadleaf

51 23902 Mix Broadleaf/Spruce-Fir

52 48546 Mix Broadleaf/Jack Pine

71 12079 Aspen

101 322405 treed muskeg

103 58898 clear muskeg

105 26976 brushland

107 12180 clearing

109 23129 burn-over (nonprod)

112 17638 disturb, cut or burn

113 1100 disturb, JP regeneration

118 30 experimental area

121 959 flooded land

122 49373 water

CROWN CLOSURE (DENSITY)

Binary Number

value in file definition

\-\-\-\-- \-\-\-\-\-\-- \-\-\-\-\-\-\-\-\-\-\-\-\-\--

0 830069 nonproductive or border pixels

61 11080 10% \< CC \<= 30%

62 93651 30% \< CC \<= 55%

63 403725 55% \< CC \<= 80%

64 313710 80% \< CC

HEIGHT CLASS

value npixels definition

\-\-\-\-- \-\-\-\-\-\-- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

0 830088 nonproductive or border pixels

5 176609 2.5m \< hgt \<= 7.5m

10 248422 7.5m \< hgt \<= 12.5m

15 310962 12.5m \< hgt \<= 17.5m

20 68612 17.5m \< hgt \<= 22.5m

25 17542 22.5m \< hgt

YEAR OF STAND

ORIGIN or DISTURBANCE

value npixels definition

\-\-\-\-- \-\-\-\-\-\-- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

0 811127 nonproductive or border pixels

82 33 1815-1825 Year of stand origin

83 1378 1825-1835

84 2496 1835-1845

85 18158 1845-1855

86 30086 1855-1865

87 12824 1865-1875

88 62706 1875-1885

89 90075 1885-1895

90 104530 1895-1905

91 75163 1905-1915

92 116326 1915-1925

93 30494 1925-1935

94 112734 1935-1945

95 10165 1945-1955

96 2283 1955-1965

97 39688 1965-1975

98 113392 1975-1985

176 103 1976 Year of disturbance

177 51 1977

180 51 1980

183 8 1983

184 7232 1984

185 4951 1985

186 6181 1986

7.3.4 Data Source

The original data were acquired in ARC/INFO format from:

Saskatchewan Environment and Resource Management

Forestry Branch - Inventory Unit

800 Central Ave.

Prince Albert, Saskatchewan

Canada S6V 6G1

The original data were gridded into a binary image format for the
SSA-MSA by BORIS personnel.

7.3.5 Data Range

Species Association 0 - 122

Crown Closure 0 - 64

Height Class 0 - 25

Year of Stand Origin or Disturbance 0 - 186

7.4 Sample Data Record

Not applicable.

8\. Data Organization

The raster data are stored on tape as single-byte band-sequential binary
files.

8.1 Data Granularity

The smallest amount of obtainable data is the entire data set containing
the four raster layers and other supporting files.

8.2 Data Format(s)

8.2.1 Uncompressed Data Files

The data files include:

Record Number of

File Description Size (Bytes) Records Bytes/Pixel

\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

1 Header File 80 19 N/A

2 SPECIES COVER 1443 1145 1

3 CROWN CLOSURE 1443 1145 1

4 HEIGHT 1443 1145 1

5 YEAR 1443 1145 1

6 AML 1 (calc cover, year) 80 79 N/A

7 AML 2 (create grid, combine) 80 129 N/A

8 AMK 3 (reprojection info) 80 10 N/A

The data set consists of eight files. The first file is the header file
which contains 80-byte records of American Standard Code for Information
Interchange (ASCII) characters that describe the general content of the
data set.

Files 2 through 5 contain the binary raster data layers. Each raster
layer contains 1,443 8-bit (1-byte) values in each of 1,145 lines.

Files 6 through 8 contain ASCII files that provide examples of the type
of

ARC Macro Language (AML) files used to create this data set from the
original vector data. These files were not intended to be used directly;
they are merely

examples of the process undertaken to produce the provided data set.

8.2.2 Compressed CD-ROM Files

On the BOREAS CD-ROMs, files 1, 6, 7, and 8 listed above are stored as
ASCII text files; however, files 2 - 4 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 websites (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

The original data were acquired as ARC/INFO export files, one file per
10-km x 10-km area. The data were imported into ARC, and attributes of
the coverage polygons were manipulated within AML scripts to produce new
attributes. The new attributes were used as lookup tables for gridding
the data, and the separate maps were then mosaicked together into one
map for each layer/attribute.

The relevant attributes (items) associated with each polygon in the
vector data are as follows:

Item Description

SP10 Primary Species #1 (one of 13 possible tree species)

SP11 Primary Species #2 (same as SP10)

SP12 Primary Species #3 (same as SP10)

SP20 Secondary Species #1 (same as SP10)

HGT Height Class (one of 5 classes in 5-m intervals)

D Density (crown closure, see below)

YOO Decadal Year of Stand Origin

MLEVEL Management Level (12 rarely used codes for non-forested polygons)

SYR Year of Source (year source info. for a polygon was obtained)

YSP Year of Silvicultural Activity (also rarely used)

R1 Regenerating Species 1 (as in SP10, but may not be tree species)

DIST Disturbance Type (cut-over or partial cut, by season, or burn-over)

DYR Year of Disturbance

NP Nonproductive Type (codes to identify all nonforested polygons)

The data layers created for this product were derived from the above
attributes as follows:

Raster Layer Input Vector Items

\-\-\-\-\-\-\-\-\-\-\-\-\--
\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

COVER SA, SP10, SP11, SP12, SP20, MLEVEL, R1, DIST, NP

CROWN CLOSURE D

HEIGHT HGT

YEAR YOO, YSP, DIST, SA, SYR, DYR NP

9.1 Formulae

9.1.1 Derivation Techniques and Algorithms

The species association data use the items listed above to select one of
the 18 species associations as defined by SERM, who provided the data.
The minimum size for homogeneous forest stands varies from 1-4 hectares
depending upon the size (HGT) and economic value of the species.

The crown closure data were created using the D item within the
coverages. This item is the average percent crown closure of the forest
stand and is assigned to one of four classes. The boundaries of these
classes are given in the table in Section 8.2. Values for item D exist
only for forested polygons.

The height class data were created from the HGT item within the
coverages. The average height of all living trees in the main canopy of
the stand is assigned to one of five height classes. The limits of the
height classes are given in Section 8.2. Values for item HGT exist only
for forested polygons.

The decadal year of origin or disturbance data were derived from a
combination of the items listed above. In the table in Section 8.2, year
of silvicultural treatment and year of disturbance are coded similarly.
The ages of productive polygons were assigned to decadal classes. When
ages overlap two or more classes, the older class is usually chosen.
Values for the year-associated items exist only for forested or
disturbed polygons.

9.2 Data Processing Sequence

9.2.1 Processing Steps

Most of the following processing steps were performed in ARC/INFO.

1\) New attribute items were added to the attribute files of each
coverage to store the value that would represent cover, crown closure,
and year of stand origin.

2\) HGT was already a numeric item and could be used directly as a
lookup table for gridding the height layer.

3\) Crown closure was not numeric, but levels were easily converted to a
numeric item that was used to grid the height layer.

4\) New values were assigned to the new cover item using the SERM
definition of species association, which assigns one of 18 common boreal
associations from the many possible combinations of the SP10, SP11, and
SP12 (only 10 different species associations show up in this data set).

5\) Management level, regenerating species, disturbance type, and
nonproductive code were used to assign cover values for nonforested
polygons.

6\) To calculate the year item, the year of stand origin item was used
for forested polygons, and year of disturbance or source year were used
for nonforested polygons.

7\) The numeric items created for cover and year were then used to grid
the polygons for those layers.

8\) The individual maps that had been gridded were mosaicked using the
ARC function GRIDINSERT.

9\) The resulting Universal Transverse Mecator (UTM) layer maps were
reprojected in ARC to create the raster images in the BOREAS grid
projection.

10\) The gridded layers and other information files were written to tape
for distribution.

11\) Copy the ASCII and compress the binary files for release on CD-ROM.

9.2.2 Processing Changes

None.

9.3 Calculations

9.3.1 Special Corrections/Adjustments

None.

9.3.2 Calculated Variables

None.

9.4 Graphs and Plots

None.

10\. Errors

10.1 Sources of Error

There is the possibility of coding errors in the attributes,
transcription errors from original sample data, and photo-interpretation
errors.

10.2 Quality Assessment

10.2.1 Data Validation by Source

Unknown.

10.2.2 Confidence Level/Accuracy Judgment

The accuracy of the gridding procedure is high. Some consideration
should be given to the scale of the data and what will be inferred from
it.

10.2.3 Measurement Error for Parameters

Unknown.

10.2.4 Additional Quality Assessments

None.

10.2.5 Data Verification by Data Center

Each gridded image was checked visually to make sure that the gridding
procedure assigned a digital number (DN) to each attribute value. The
data were also checked for gaps of \"no data\" along the seams of the
10-km x 10-km coverages used to compile this product.

11\. Notes

11.1 Limitations of the Data

BORIS acquired these data in 1993; therefore, areas subjected to logging
activity or other disturbance, such as fire, will appear much different
today as compared to the forest cover data.

11.2 Known Problems with the Data

None.

11.3 Usage Guidance

Saskatchewan Parks and Renewable Resources does not accept any liability
for decisions or action taken on the basis of these data.

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

Saskatchewan Parks and Renewable Resources also maintains stand and
stock tables, 3P plots, and possibly some permanent sample plots in this
area. Aerial photographic prints and negatives are also available.
Contact the agency directly if you are interested in such information or
if you wish to acquire those data.

12\. Application of the Data Set

This data set would provide good reference information for assessing
spectral image data classification techniques over the area and serve as
an initial baseline data set for analyzing land cover and vegetation
change.

13\. Future Modifications and Plans

None.

14\. Software

14.1 Software Description

The Environmental Systems Research Institute (ESRI) ARC/INFO (Version
7.0) package was used to perform the data manipulation and processing.
Questions about the software should be directed to:

Environmental Systems Research Institute, Inc.

380 New York Street

Redlands, CA 92373-8100

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

14.2 Software Access

ARC/INFO is a commercial package; contact ESRI for details.

Gzip is available from many websites across the net (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

15.1 Contact Information

Ms. Beth Nelson

BOREAS Data Manager

NASA GSFC

Greenbelt, MD

\(301\) 286-4005

\(301\) 286-0239 (fax)

Elizabeth.Nelson@gsfc.nasa.gov

15.2 Data Center Identification

See Section 15.1.

15.3 Procedures for Obtaining Data

Users may place requests by telephone, electronic mail, or fax.

15.4 Data Center Status/Plans

As the BOREAS data are processed and sufficiently quality checked, they
will be available from the Earth Observing System Data and Information
System (EOSDIS) Oak Ridge National Laboratory (ORNL) Distributed Active
Archive Center (DAAC). The BOREAS contact at ORNL is:

ORNL DAAC User Services

Oak Ridge National Laboratory

\(865\) 241-3952

ornldaac@ornl.gov

ornl@eos.nasa.gov

16\. Output Products and Availability

16.1 Tape Products

None.

16.2 Film Products

None.

16.3 Other Products

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

17\. References

Lindenas, D. G. June 1985. Forest Inventory Interpretation and Mapping
Manual - Specifications for the Interpretation and Mapping of Aerial
Photographs in the Forest Inventory Section. Saskatchewan Parks and
Renewable Resources

17.1 Platform/Sensor/Instrument/Data Processing Documentation

ARC/INFO User\'s Guide (Version 7), 1994. Redlands, CA.

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

Sellers, P.and F. Hall. 1994. Boreal Ecosystem-Atmosphere Study:
Experiment Plan. Version 1994-3.0, NASA BOREAS Report (EXPLAN 94).

Sellers, P.and F. Hall. 1996. Boreal Ecosystem-Atmosphere Study:
Experiment Plan. Version 1996-2.0, NASA BOREAS Report (EXPLAN 96).

Sellers, P.and F. Hall. 1997. BOREAS Overview Paper. JGR Special Issue.

Sellers, P., F. Hall, and K.F. Huemmrich. 1996. Boreal
Ecosystem-Atmosphere Study: 1994 Operations. NASA BOREAS Report (OPS DOC
94).

Sellers, P., F. Hall, and K.F. Huemmrich. 1997. Boreal
Ecosystem-Atmosphere Study: 1996 Operations. NASA BOREAS Report (OPS DOC
96).

Sellers, P., F. Hall, H. Margolis, B. Kelly, D. Baldocchi, G. den
Hartog, J. Cihlar, M.G. Ryan, B. Goodison, P. Crill, K.J. Ranson, D.
Lettenmaier, and D.E. Wickland. 1995. The boreal ecosystem-atmosphere
study (BOREAS): an overview and early results from the 1994 field year.
Bulletin of the American Meteorological Society. 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, and F.E. Guertin.
(1997). \"BOREAS in 1997: Experiment Overview, Scientific Results and
Future Directions\", Journal of Geophysical Research (JGR), BOREAS
Special Issue, 102(D24), Dec. 1997, pp. 28731-28770.

17.3 Archive/DBMS Usage Documentation

None.

18\. Glossary of Terms

None.

19\. List of Acronyms

AEAC - Albers Equal-Area Conic

AML - ARC Macro Langauge

ASCII - American Standard Code for Information Interchange

BOREAS - BOReal Ecosystem-Atmosphere Study

BORIS - BOREAS Information System

BS - Black Spruce

DAAC - Distributed Active Archive Center

DN - Digital Number

EOS - Earth Observing System

EOSDIS - EOS Data and Information System

ESRI - Environmental Systems Research Institute

GSFC - Goddard Space Flight Center

GIS - Geographic Information System

JP - Jack Pine

NASA - National Aeronautics and Space Administration

NSA - Northern Study Area

ORNL - Oak Ridge National Laboratory

PANP - Prince Albert National Park

SERM - Saskatchewan Environment and Resource Management

SSA - Southern Study Area

TL - Tamarack

URL - Uniform Resource Locator (a World Wide Web address)

WS - White Spruce

20\. Document Information

20.1 Document Revision Dates

Written: 01-Aug-1994

Last Updated: 28-Jul-1998

20.2 Document Review Dates

BORIS Review: 15-May-1997

Science Review:

20.3 Document ID

20.4 Citation

The original data were provided by SERM-FBIU. The vector data were
processed and gridded by BORIS staff. The contribution of the vector
data by SERM and the processing of the data by BORIS staff are greatly
appreciated.

20.5 Document Curator

20.6 Document URL

Keywords

Forest Cover

Forestry

Forest Inventory

GIS