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RECORD NUMBER: 48 OF 3183

OLS Field Name OLS Field Data
Main Title Accuracy Assessment of 1997 Landsat Thematic Mapper Derived Land Cover for the Upper San Pedro Watershed (U.S./Mexico).
Author Kepner, W. G. ; Skirvin, S. M. ; Drake, S. E. ; Maingi, J. K. ; Marsh, S. E. ;
CORP Author Environmental Protection Agency, Las Vegas, NV. National Exposure Research Lab. ;Arizona Univ., Tucson. Office of Arid Lands Studies.
Publisher 30 May 2000
Year Published 2000
Report Number EPA/600/R-00/097;
Stock Number PB2001-104914
Additional Subjects Land use ; Thematic mapper(Landsat) ; Watersheds ; Satellite imagery ; Remote sensing ; Databases ; Land management ; Arizona ; Assessments ; Classifications ; Environmental monitoring ; United States ; Mexico ; San Pedro River
Holdings
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NTIS  PB2001-104914 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 10/17/2002
Collation CD-ROM
Abstract
High-resolution airborne color video data were used to evaluate the accuracy of a land cover map of the upper San Pedro River watershed, derived from June 1997 Landsat Thematic Mapper data. The land cover map was interpreted and generated by Instituto del Medio Ambiente y el Desarrollo Sustentable del Estado de Sonora (IMADES), Hermosillo, Sonora and supplied to the Arizona Remote Sensing Center at the University of Arizona for evaluation. Map pixel size had been increased from 30 to 60 meters to match the 1973, 1986, and 1992 North American Landscape Characterization (NALC) land cover maps produced from Landsat MSS data. The airborne color video data included six flight lines acquired 2-5 May 1997 over the San Pedro watershed in the U.S. GPS time and coordinate information encoded on the video tapes were used to generate GIS point coverages of video frames covering the upper San Pedro. A total of 527 video sample points were drawn randomly from a subset of 4567 frames falling on areas of uniform cover classes at least 180 meters square. Sample points were stratified by cover class area, with a minimum sample of 24 points for classes of small areal extent.