1973. American Geological Institute, Geological Survey (U.S.), Environmental Systems Research Institute (Redlands, Calif.), National Earthquake Information Center, and National Geophysical Data Center. This datalayer is a point coverage representing earthquake epicenters (1973 through March, 2003). Historical data for this layer were derived from:... American Geological Institute.
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2003. American Geological Institute, Geological Survey (U.S.), and Environmental Systems Research Institute (Redlands, Calif.). This datalayer is a polygon coverage showing U.S. Geological Survey defined geologic provinces of the World, excluding the United States. It was pu... American Geological Institute.
2000. American Geological Institute, Geological Survey (U.S.), and Environmental Systems Research Institute (Redlands, Calif.). This shapefile includes arcs and polygons that describe U.S. Geological Survey defined geologic provinces of the World. Each province has a set of ... American Geological Institute.
2003. American Geological Institute, Geological Survey (U.S.), and Environmental Systems Research Institute (Redlands, Calif.). This dataset is a polyline coverage representing a 5-degree by 5-degree global latitude and longitude grid, including geographically significant li... American Geological Institute.
1931. International Institute of Applied Systems Analyses, Leemans, Rik, Cramer, Wolfgang P., Rijksinstituut voor Volksgezondheid en Milieuhygi???ne (Netherlands), and National Institute of Public Health and Environmental Protection (Netherlands). This datalayer is a point shapefile that shows long-term (1931-1960) mean monthly values for actual evapotranspiration (AE) (in millimeters) on a g... American Geological Institute.
1931. International Institute of Applied Systems Analyses, Leemans, Rik, Cramer, Wolfgang P., Rijksinstituut voor Volksgezondheid en Milieuhygi???ne (Netherlands), and National Institute of Public Health and Environmental Protection (Netherlands). This datalayer is a point shapefile that shows long-term (1931-1960) mean monthly values for cloud cover on a global terrestrial grid at 0.5 degree... American Geological Institute.
1931. International Institute of Applied Systems Analyses, Leemans, Rik, Cramer, Wolfgang P., Rijksinstituut voor Volksgezondheid en Milieuhygi???ne (Netherlands), and National Institute of Public Health and Environmental Protection (Netherlands). This datalayer is a point shapefile that shows long-term (1931-1960) mean monthly values for potential evapotranspiration (PET) (in millimeters) on... American Geological Institute.
1931. International Institute of Applied Systems Analyses, Leemans, Rik, Cramer, Wolfgang P., Rijksinstituut voor Volksgezondheid en Milieuhygi???ne (Netherlands), and National Institute of Public Health and Environmental Protection (Netherlands). This datalayer is a point shapefile that shows long-term (1931-1960) mean monthly values for precipitation (in millimeters) on a global terrestrial... American Geological Institute.
1931. International Institute of Applied Systems Analyses, Leemans, Rik, Cramer, Wolfgang P., Rijksinstituut voor Volksgezondheid en Milieuhygi???ne (Netherlands), and National Institute of Public Health and Environmental Protection (Netherlands). This datalayer is a point shapefile that shows long-term (1931-1960) mean monthly values for temperatures (in degrees Celsius) on a global terrestr... American Geological Institute.
1997. United States. National Imagery and Mapping Agency. This datalayer is a point coverage representing worldwide navigational hazards or dangers near ocean and navigable lake coastlines and was publishe... American Geological Institute.