Population Count, v4.11, 2005 : 無料・フリー素材/写真
Population Count, v4.11, 2005 / SEDACMaps
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | Gridded Population of the World, Version 4 (GPWv4) Population Count, Revision 11 consists of estimates of human population consistent with national censuses and population registers for the years 2000, 2005, 2010, 2015, and 2020. A proportional allocation gridding algorithm, utilizing approximately 13.5 million national and sub-national administrative units, is used to assign population counts to 30 arc-second (approximately 1 km at the equator) pixels. |
| 撮影日 | 2019-06-05 12:16:50 |
| 撮影者 | SEDACMaps |
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