Individual country census normalized to the CIA World Factbook (source: U.S. Cells are weighted and tailored to match the data conditions and geographical nature of each country/region by leveraging the most recent and highest resolution ancillary data available. Spatial data, imagery analysis, and multi-variable dasymetric* modeling are combined with geospatial science (remote sensing and machine learning technologies) and subject matter expertise to distribute unwarned populations. Population estimates are generally on the high end of the range of past estimatesĪmbient (24 hour average) population based on enumeration counts Historical population, cropland and pasture statistics are combined with satellite information and specific allocation algorithms (which change over time) to create spatially explicit dasymetric* population maps. Netherlands Environmental Assessment Agency (PBL) History Database of the Global Environment (HYDE) Population Grids, version 3.1
Global Rural Urban Mapping Project (GRUMP)Ĭenter for International Earth Science Information Network (CIESIN) - Columbia University International Food Policy Research Institute (IFPRI), The World Bank, Centro Internacional de Agricultural Tropical (CIAT)īinary dasymetric* using DMSP-OLS nighttime lights and proportional allocation to distribute population data from subnational census data to the settlement extents. United Nations Population Division (UNPD) estimates and projections Global Human Settlement Layer – Population (GHS-POP)Įuropean Commission Joint Research Centre (JRC) and Center for International Earth Science Information Network (CIESIN) - Columbia Universityĭasymetric* using Sentinel-2 and Landsat-derived built up volume and function, and proportional allocation to distribute population data from subnational census data to built-up areas. Two versions: 1) official country totals from census 2) Country totals adjusted to United Nations Population Division ( UNPD) estimates and projections Resident** population (population counted at place of domicile)Īreal weighted such that population is spread across all grid cells covering a census unit based on the proportion of the grid cell that falls in the census unit. Gridded Population of the World (GPW), version 4Ĭenter for International Earth Science Information Network (CIESIN) - Columbia University Source for National Level Population Totals
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