This new version for Africa provides considerably more detail: more than 109,000 administrative units (83,000 of which are in South Africa), compared to about 800 in the first, 2,200 in the second version and 4,700 in the third. In addition, for each of these units a population estimate was compiled for 1960, 70, 80, 90 and 2000 which provides an indication of past population dynamics in Africa.
In order to provide an indication of population dynamics and to maximize comparability across national boundaries, population estimates were produced for 1960, 70, 80, 90 and 2000.
The development of this database was supported by the:
United Nations Environment Programme / Global Resource Information Database (UNEP/GRID), Sioux Falls. Center for International Earth Science Information Network (CIESIN), Columbia University NY.
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Projection Parameters Geographic Units: DD Datum: WGS84
Spatial Information Raster: Number of Columns: 2160 Number of Rows: 1800 Pixel Resolution (m): 2.5km (2.5 minutes) Data Type: integer
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