FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 2005
TITLE: USDA FOREST TYPE
Geodataset Name: FORTYP Geodataset Type: Grid Geodataset Feature: Polygon
GENERAL DESCRIPTION:
This dataset contains Forest Types.
RESOLUTION: 1000m
GRID TYPE: Integer
DATA SOURCE: U.S. Department of Agriculture, Forest Service,
Southern Forest Experiment Station
SCALE: NA
DATE OF AUTOMATION OR SOURCE: 1991, see USER NOTES
GEODATASET EXTENT: State of Florida
USER NOTES:
In 1991, the U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station, Forest Inventory and Analysis (SO-FIA) research unit began a project to map forest land distributions for the United States. The project was performed in support of the Forest and Rangeland Renewable Resources Planning Act (RPA) 1993 Assessment Update program to provide information on current forest and rangeland conditions. The RPA mapping project was completed in December, 1992.
Advanced Very High Resolution Radiometer (AVHRR) data from National Oceanic and Atmospheric Administration satellites were used as the primary source of information for this project. Forest type groups maps of the contiguous U.S. and Hawaii were produced by SO-FIA. The forest type groups map of Alaska was produced by the Pacific Northwest Forest and Range Experiment Station, Anchorage Forestry Sciences Lab (Alaska FIA unit), in cooperation with the U.S. Geological Survey, EROS Data Center, Alaska Field Office, Anchorage.
During the mapping project, all Forest Service FIA research units assisted with reference data and provided technical comments and reviews. The U.S. Geological Survey, EROS Data Center in Sioux Falls, SD, assisted in satellite data acquisition and provided important ancillary data layers.
The U.S. forest type groups map will be published by the U.S. Forest Service with the 1993 RPA Forest Resource report. This CD-ROM contains data files and associated descriptive text files for forest type group maps of the lower 48 states, Alaska, and Hawaii, and a forest density map of the lower 48 states.
DATA VALUES FOR FORTYPE.VAT
0 Background 13 Ponderosa pine 1 White-red-jack pine 14 Western white pine 2 Spruce-fir 15 Lodgepole pine 3 Longleaf-slash pine 16 Larch 4 Loblolly-shortleaf pine 17 Fir-spruce 5 Oak-pine 18 Redwood 6 Oak-hickory 19 Chaparral 7 Oak-gum-cypress 20 Pinyon-juniper 8 Elm-ash-cottonwood 21 Western hardwoods 9 Maple-beech-birch 22 Aspen-birch 10 Aspen-birch 23 Nonforest 11 Douglas-fir 24 Water 12 Hemlock-Sitka spruce DESCRIPT item contains the above values.
REFERENCES:
Powell, Douglas S.; Faulkner, Joanne L.; Darr, David; Zhu, Zhiliang; MacCleery, Douglas W. [in press]. Forest resources of the United States, 1992. Gen. Tech. Report. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station.
Zhu, Zhiliang; Evans, L. David. 1992. Mapping midsouth forest distributions. Journal of Forestry. 90(12):27-30.
MAP PROJECTION PARAMETERS:
Projection ALBERS Units METERS Datum HPGN Spheroid GRS1980 1st standard parallel 24 0 0.000 2nd standard parallel 31 30 0.000 central meridian -84 0 0.000 latitude of projection's origin 24 0 0.000 false easting (meters) 400000.00000 false northing (meters) 0.00000
DATA SOURCE CONTACT(S):
Name: USDA, Forest Service, Southern Forest Experiment Station
Abbr. name: USDA
Address: Forestry Sciences Lab, P O Box 906
Starkville, MS 39759
Phone: (601) 324-1611
Web site: www.usda.gov
FGDL CONTACT:
Name: FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name: FGDL
Address: Florida Geographic Data Library
431 Architecture Building
PO Box 115706
Gainesville, FL 32611-5706
Web site: http://www.fgdl.org
Contact FGDL:
Technical Support: http://www.fgdl.org/fgdlfeed.html
FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html
FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html
For FGDL Software: http://www.fgdl.org/software.html