Analyzing Accuracy Attributes of Landsat and Digital Terrain Tape Data in the Context of a Digital Geobase Information System
نویسندگان
چکیده
The major conclusions reached in this research effort are: 1) Landsat derived land cover classification data are, at present, a marginally accurate data source for county-level resource management requirements; and 2) the accuracy of standard product National Cartographic Information Center (NCIC) Digital Terrain Tape data appear to be questionable, again with respect to the information requirements of county level resouce managers. Data representation accuracy has been analyzed for Landsat/MSS land cover and NCIC Digital Terrain Tape data. Landsat derived data correctly represented land cover in. 71.5% of 200 randomly sampled grid cells verified against low-altitude photography. Only 61% of the sampled Digital Terrain Tape elevation values were within one-half of the contour interval (30.5 meters) on a 1:24,000 scale topo-
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