File:Global Population Density Grid Time Series Estimates, 1980 (39332482964).jpg

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Description Global Population Density Grid Time Series Estimates provide a back cast time series of population density grids based on SEDAC's Global Rural-Urban Mapping Project, Version 1 (GRUMPv1) data set. The grids were generated by using rates of population change between decades from the coarser resolution History Database of the Global Environment (HYDE) Version 3.1 to back-cast the GRUMPv1 population count grids. Mismatches between the spatial extent of the HYDE v3.1 calculated rates and GRUMPv1 population data were resolved by infilling rate cells based on a focal mean of values. The grids were then adjusted so that the population totals for each country equaled the UN World Population Prospects (2008 Revision) estimates for that country for the years 1970, 1980, 1990, and 2000.
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Source Global Population Density Grid Time Series Estimates, 1980
Author SEDACMaps

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This image was originally posted to Flickr by SEDACMaps at https://flickr.com/photos/54545503@N04/39332482964 (archive). It was reviewed on 21 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

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current02:03, 21 December 2019Thumbnail for version as of 02:03, 21 December 20193,116 × 2,414 (878 KB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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