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2011. United States. Environmental Protection Agency. Region IX. This polygon shapefile represents nonattainment areas for carbon monoxide (CO) in EPA Region 9, including California, Nevada and Arizona, for 2011.... United States. Environmental Protection Agency. Region IX.
1999. Land used for agricultural production presents a tradeoff to society. On one hand, agricultural lands provide essential food, feed, fiber, and incr... University of Minnesota. Institute on the Environment.
2000. This raster dataset depicts equal area climate bins for cassava crops. Climate bins are defined by precipitation and growing degree days in crop ar... University of Minnesota. Institute on the Environment.
2000. This raster dataset represents a climate-defined potential yield (in tons per hectare) of cassava crops for the year 2000 compared to other farmers... University of Minnesota. Institute on the Environment.
2000. This raster dataset represents the average gap (in tons per hectare) between observed yields in the year 2000 and a climate-defined potential yield... University of Minnesota. Institute on the Environment.
2015. Monterey County (Calif.). This point shapefile depicts catch basins and culverts within Monterey County, California. The source data for this layer is the "Monterey Regional... Monterey County (Calif.).
1992. Wade, Tim. This raster image is a 270-meter resolution grid map of the conterminous United States in GeoTIFF format, created from National Land Cover Data (NL... National Atlas of the United States.
1992. Wade, Tim. This raster layer is a 540 meter resolution grid map of the conterminous United States in GeoTIFF format, created from National Land Cover Data (NL... National Atlas of the United States.
1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, and 1996. International Livestock Research Institute. This polygon shapefile shows changes in wildlife density in Kenya's rangelands between 1977-78 and 1994-96. Many places in Kenya experienced gains ... World Resources Institute.
2008. Bay Area Open Space Council, Conservation Lands Network, San Francisco Bay Area Upland Habitat Goals Project, and GreenInfo Network (Firm). This polygon shapefile depicts the range map the chipmunk that were pulled out and then reversed so the polygon represents areas outside of their r... Bay Area Open Space Council.