To provide populated place (point) data with consistent population estimates.
Abstract:
The Global Rural-Urban Mapping Project, Version 1 (GRUMPv1) consists of estimates of human population for the years 1990, 1995, and 2000 by 30 arc-second (1km) grid cells and associated data sets dated circa 2000. A proportional allocation gridding algorithm, utilizing more than 1,000,000 national and sub-national geographic units, is used to assign population values (counts, in persons) to grid cells. This data set is produced by the Columbia University Center for International Earth Science Information Network (CIESIN) in collaboration with the International Food Policy Research Institute (IFPRI), The World Bank, and Centro Internacional de Agricultura Tropical (CIAT).
Recommended Citation:
Center for International Earth Science Information Network (CIESIN)/Columbia University, International Food Policy Research Institute (IFPRI), The World Bank, and Centro Internacional de Agricultura Tropical (CIAT).
2011.
Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Settlement Points.
Palisades,
NY:
NASA Socioeconomic Data and Applications Center (SEDAC).
http://sedac.ciesin.columbia.edu/data/set/grump-v1-settlement-points. Accessed DAY MONTH YEAR.