Source imagery for HRSL © 2016 DigitalGlobe. The map is divided into numerous small boxes, called 'grids.' Each grid box is about 1 kilometer long by one kilometer wide, and it is color coded to show how many people live there. To reference this data, please use the following citation: Facebook Connectivity Lab and Center for International Earth Science Information Network - CIESIN - Columbia University. This map shows how many people live in different areas on Earth. This preserves the relative population totals across administrative units while matching the UN total. The resulting adjustment factor is multiplied by each administrative unit census value for the target year. The UN estimate for a given country (or state/territory) is divided by the total census estimate of population for the given country. For more information about the methodology used to create our high resolution population density maps and the demographic distributions, please visit: įor information about how to use HDX to access these datasets, please visit: Īdjustments to match the census population with the UN estimates are applied at the national level. The resulting maps are the most detailed and actionable tools available for aid and research organizations. Though they appear topographical and even resemble urban areas, the maps visualize population density in squares. Then we work with our partners at Columbia University to overlay general population estimates based on publicly available census data and other population statistics. Created using the EU’s population density data and mapping tool Aerialod by Alasdair Rae, the 3D-rendered maps highlight demographic trends and geographic constraints. To create our high-resolution maps, we use machine learning techniques to identify buildings from commercially available satellite images. Creative Commons Attribution International
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