Main Title |
Southwest Regional Gap Analysis Project. Final Report on Land Covering Mapping Methods. |
CORP Author |
Utah State Univ., Logan. Coll. of Natural Resources. ;Colorado Div. of Wildlife, Denver. ;Environmental Protection Agency, Las Vegas, NV. National Exposure Research Lab.;Geological Survey, Flagstaff, AZ. |
Publisher |
13 Oct 2005 |
Year Published |
2005 |
Stock Number |
PB2006-102816 |
Subjects |
Gap analysis ;
Mapping ;
Land cover mapping ;
Southwest regional program ;
Modeling ;
Wildlife habitat ;
Biodiversity ;
Gap analysis program ;
State-centered ;
Regional programs ;
Giospatial data ;
US Geological Survey
|
Additional Subjects |
Gap analysis ;
Mapping ;
Land cover mapping ;
Southwest regional program ;
Modeling ;
Wildlife habitat ;
Biodiversity ;
Gap analysis program ;
State-centered ;
Regional programs ;
Giospatial data ;
US Geological Survey
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Internet Access |
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Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB2006-102816 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
54p |
Abstract |
For more than a decade the USGS Gap Analysis Program has focused considerable effort on mapping land cover to assist in the modeling of wildlife habitat and biodiversity for large geographic areas. The GAP Analysis Program has been traditionally state-centered; each state having the responsibility of implementing a project design for the geographic area within their state boundaries. The Southwest Regional Gap Analysis Project (SWReGAP) was the first formal GAP project designed at a regional, multi-state scale. The project area comprises the southwestern states of Arizona, Colorado, Nevada, New Mexico and Utah. Project duration lasted approximately 5 years, beginning in 1999 and ending in 2004. The land cover map was generated using regionally consistent geospatial data (Landsat ETM+ imagery and DEM derivatives), similar field data collection protocols, a standardized land cover legend, and a common modeling approach (decision tree classifier). Partitioning of mapping responsibilities amongst the 5 collaborating states was organized around ecoregion based 'mapping zones.' Over the course of three field seasons approximately 93,000 field samples were collected to train the land cover modeling effort. Land cover modeling was done using a decision tree classifier. This report presents an overview of the methodologies used to create the regional land cover dataset and highlights issues associated with achieving this collaborative product through a regionally coordinated process. |
Supplementary Notes |
Prepared in cooperation with Colorado Div. of Wildlife, Denver. and Environmental Protection Agency, Las Vegas, NV. National Exposure Research Lab. Sponsored by Geological Survey, Flagstaff, AZ. |
Availability Notes |
Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
Category Codes |
48I; 48B; 57H |
NTIS Prices |
PC A05 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
009500290 |
Origin |
NTIS |
Type |
CAT |