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1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, and 2002. EROS Data Center. The grayscale North America shaded relief data were derived from the GTOPO30 elevation data. GTOPO30 is a global digital elevation model (DEM) with... National Atlas of the United States.
2006. EROS Data Center. The grayscale Puerto Rico and U.S. Virgin Islands shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain ... National Atlas of the United States.
2002. EROS Data Center. The grayscale Puerto Rico and U.S. Virgin Islands shaded relief data were derived from National Elevation Dataset (NED) data, and show the terrain ... National Atlas of the United States.
2009. World Wildlife Fund (WWF). This drainage direction map for North America defines the direction of flow from each cell in the conditioned digital elevation model to its steepe... U.S. Geological Survey.
2009. World Wildlife Fund (WWF). This drainage direction map for North America defines the direction of flow from each cell in the conditioned digital elevation model to its steepe... U.S. Geological Survey.
2009. World Wildlife Fund (WWF). HydroSHEDS (Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales)flow accumulation maps define amount of upstream a... U.S. Geological Survey.
2009. World Wildlife Fund (WWF). HydroSHEDS (Hydrological data and maps based on SHuttle Elevation Derivatives at multiple Scales)flow accumulation maps define amount of upstream a... U.S. Geological Survey.
2009. World Wildlife Fund (WWF). This raster layer is a void-filled digital elevation model (DEM) of North America at 15 arc-seconds resolution. Elevation is expressed in meters an... U.S. Geological Survey.
2000. California. Department of Fish and Game. Marine Resources Region, Pacific Fishery Management Council (U.S.), United States. National Marine Fisheries Service, and United States. National Oceanic and Atmospheric Administration. This point shapefile depicts ocean depths gridded on a 5-minute latitude/longitude interval. This coverage was created from data extracted from the... California. Department of Fish and Game. Marine Resources Region.
2011. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This raster dataset was derived from the 30 meter resolution Digital Elevation Model layer and depicts percent slope across the nine county San Fra... Bay Area Open Space Council.