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Pennsylvania Spatial Data Access (PASDA)
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1261. Fractional Vegetation Cover for Southwest Pennsylvania, 1985
1985. Dr. Toby Carlson, Penn State University. Fractional vegetation cover for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. Values range f...
1262. Impervious surface area for Northeast Pennsylvania, 1985
1985. Toby Carlson, Penn State University. Impervious surface area for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. The Value attribut...
1263. Impervious surface area for Northwest Pennsylvania, 1985
1985. Toby Carlson, Penn State University. Impervious surface area for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. The Value attribut...
1264. Impervious surface area for Southeast Pennsylvania, 1985
1985. Toby Carlson, Penn State University. Impervious surface area for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. The Value attribut...
1265. Impervious surface area for Southwest Pennsylvania, 1985
1985. Toby Carlson, Penn State University. Impervious surface area for Pennsylvania was estimated from Thematic Mapper data using algorithms developed by Dr. Toby Carlson. The Value attribut...
1266. Urban Ecosystem Analysis Landsat interpreted land cover for the Delaware Valley
1985. American Forests. AMERICAN FORESTS conducted an urban ecosystem analysis of the Delaware Valley region to provide community leaders with detailed information about t...
1267. Chesapeake Bay Watershed Land Cover Data Series 1984
1984. U.S. Geological Survey. To better understand how the land is changing and to relate those changes to water quality trends, the USGS funded the production of a Chesapeake B...
1268. Geographic Names Information System (GNIS) for Pennsylvania
1981. U.S. Geological Survey. The Geographic Names Information System (GNIS), developed by the U.S. Geological Survey in cooperation with the U.S. Board on Geographic Names (BGN...
1269. North American Breeding Bird Survey Routes
1966. Canadian Wildlife Service U.S. Fish and Wildlife Service U.S. Department of the Interior; now at USGS Patuxent Wildlife Research Center. The North American Breeding Bird Survey (BBS), which is coordinated by the Biological Resources Division and Canadian Wildlife Service, is a primar...
1270. Historical Map Collection for Lancaster County: Pennsylvania
1900. Lancaster County. Historical maps in TIFF format of Lancaster County.