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Home Ground sample data for the conterminous U.S. land cover characteristics database .

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Title	Ground sample data for the conterminous U.S. land cover characteristics database.
Contributor	Burgan, Robert E. ;<br> Rocky Mountain Research Station--Ogden.
Description	Ground sample data were collected for a land cover database and raster map that portray 159 vegetation classes at 1 km² resolution for the conterminous United States. Location for 3,500 1 km² ground sample plots were selected randomly across the United States. The number of plots representing each vegetation class was weighted by the proportionate coverage of each vegetation class. Field data collected for 2,560 of these plots included dominant vegetation species; coverage, height, and diameter estimates of major tree species; coverage, depth, and density estimates for shrubs and grasses; and photographs of the sample plots. These data were compared to vegetation labels assigned in the USGS, EROS Data Center's Land Cover Characteristics (LCC) database. The vegetation types were comparable in most cases, but the ground data provided labels ordered according to decreasing vegetation frequency. A formal accuracy assessment of the LCC map was not attempted. All data are available on CD-ROM from the EROS Data Center.
Publisher	Ogden, UT : U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, [1999]
Subject	Vegetation mapping - - United States. ; <br> Land use - - United States.
Relation	General technical report RMRS ; GTR-41.
Source	A 13.88:RMRS-GTR-41
Date Original	1999-11-01
Date Digital	2007;
Type	text
Format	application/pdf
Resource Identifier	mtg002101
Contributing Institution	The University of Montana
Language	en
Digitization Specifications	Scanned by Lacey Gibbons using an OpticBook 3600 scanner at 400 dpi, 8 bit gray scale. Master images stored as TIFF and derivatives presented as PDF. Abbey FineReader 8.0 used for optical character recognition.

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