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One variable, vegetation type, is mapped across the contiguous United States on a 0.5-degree latitude/longitude grid. This dataset provides a physiognomic classification of potential natural vegetation, based on Kuchler's map, for use in biogeochemistry and biogeography model intercomparisons. It is designed to assess ecosystem sensitivity to changing climate and elevated atmospheric CO2 concentrations (355 ppm).
License is specified as 'other-license-specified'; users should consult the provided user guide for terms. A complete guide is available at ftp://daac.ornl.gov/data/vemap-1/comp/Phase_1_User_Guide.pdf.