[Location: Location_Category='CONTINENT', Location_Type='AFRICA', Location_Subregion1='WESTERN AFRICA']
Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Land and Geographic Unit Area GridsEntry ID: CIESIN_SEDAC_GRUMPv1_LGUAG
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. The area grids measure land areas in square kilometers and the mean unit size (population-weighted) in square kilometers. The land area grid permits the summation of areas (net of permanent ice and water) at the same resolution as the ... population density, count, and urban-rural grids. The mean unit size grids provide a quantitative surface that indicates the size of the input unit(s) from which population count and density grids are derived. Additional global grids are created from the 30 arc-second grid at 1/4, 1/2, and 1 degree resolutions. This dataset 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).
The data in ARC/INFO Binary Grid (GRID), American Standard Code for Information Interchange (ASCII), Band Interleaved by Line (BIL) formats are available from the NASA Socioeconomic Data and Applications Center (SEDAC).
Purpose: To provide land area data for use with GRUMPv1 population and urban data as well as a quantitative measure of resolution of the input spatial units for GRUMPv1.
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Data Set Citation
Dataset Originator/Creator: 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)
Dataset Title: Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Land and Geographic Unit Area Grids
Dataset Release Date: 2011
Dataset Release Place: Palisades, NY
Dataset Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Data Presentation Form: rasterOnline Resource: http://sedac.ciesin.columbia.edu/data/set/grump-v1-land-geographic-...
Start Date: 1990-07-01Stop Date: 1990-07-01
Role: DIF AUTHOR
Email: dhamilton at nodc.noaa.gov
National Oceanographic Data Center NOAA/NESDIS E/OC1 SSMC3, 4th Floor 1315 East-West Highway
City: Silver Spring
Province or State: MD
Postal Code: 20910-3282
NOAA Product Information Catalog. 1988. Washington, DC: US
Dept. of Commerce, 171 pp.
NODC Users Guide. 1984. Washington, DC: US Dept. of Commerce.
Creation and Review Dates
Last DIF Revision Date: 2002-06-14