2007. National Center for Ecological Analysis and Synthesis. This raster dataset contains measurements of invasive species in the world's oceans. See the Lineage section for complete information regarding dat... Science.
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2000. University of Minnesota. Institute on the Environment. This raster dataset depicts equal area climate bins for maize crops. Climate bins are defined by precipitation and growing degree days in crop area... University of Minnesota. Institute on the Environment.
2000. University of Minnesota. Institute on the Environment. This raster dataset represents a climate-defined potential yield (in tons per hectare) of maize crops for the year 2000 compared to other farmers g... University of Minnesota. Institute on the Environment.
2000. University of Minnesota. Institute on the Environment. 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.
2000. University of Minnesota. Institute on the Environment. This raster dataset depicts equal area climate bins for millet crops. Climate bins are defined by precipitation and growing degree days in crop are... University of Minnesota. Institute on the Environment.
2000. University of Minnesota. Institute on the Environment. This raster dataset represents a climate-defined potential yield (in tons per hectare) of millet crops for the year 2000 compared to other farmers ... University of Minnesota. Institute on the Environment.
2000. University of Minnesota. Institute on the Environment. 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.
1996. Environmental Systems Research Institute (Redlands, Calif.). Mining Centers, 1996 is a point theme representing major Mining centers worldwide. Attribute information includes the name of the mining center, t... ESRI.
2004. National Atlas of the United States. This polygon shapefile portrays county level data for the fiscal-year-2004 National Fire Plan - Hazardous Fuels Reduction Program. The purpose of t... National Atlas of the United States.
1972. National Atlas of the United States. This polygon shapefile contains National Wilderness Preservation System areas of 640 acres or more, in the United States, Puerto Rico, and the U.S.... National Atlas of the United States.