Science Keywords>HUMAN DIMENSIONS
Gridded Population of the World, Version 3 (GPWv3): Population Density GridEntry ID: CIESIN_SEDAC_GPWv3_POPDENS
Abstract: Gridded Population of the World, Version 3 (GPWv3) consists of estimates of human population for the years 1990, 1995, and 2000 by 2.5 arc-minute grid cells and associated
datasets dated circa 2000. A proportional allocation gridding algorithm, utilizing more than 300,000 national and sub-national administrative units, is used to assign population values to
grid cells. The population density ... grids are derived by dividing the population count grids by the land area grid and represent persons per square kilometer. The grids are available in
various GIS-compatible data formats and geographic extents (global, continent [Antarctica not included], and country levels). GPWv3 is produced by the Columbia University Center for
International Earth Science Information Network (CIESIN) in collaboration with Centro Internacional de Agricultura Tropical (CIAT).
Purpose: To provide a time series of raster data on population density to facilitate data integration.
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