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
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > INORGANIC MATTER
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > NITROGEN COMPOUNDS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > NUTRIENTS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > ORGANIC MATTER
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > PHOSPHOROUS COMPOUNDS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER ION CONCENTRATION
BIOSPHERE > AQUATIC ECOSYSTEMS > WETLANDS
Quality Data range from a reading in 1959 for stations P33 and P34 to 2000. Not all stations have data for every month of the reporting period. Missing data is indicated by -- in the appropriate field.
Access Constraints None
Use Constraints These data are subject to change and are not citeable until reviewed and approved for official publication.
Data Set Progress
Distribution Size: 2.03
Distribution Format: EXCEL
Role: TECHNICAL CONTACT
Phone: (813) 975-8620 ext. 128
Fax: (813) 942-9521
Email: aetorres at usgs.gov
U.S. Geological Survey 227 N. Bronough Street
Province or State: FL
Postal Code: 32301
Role: DIF AUTHOR
Email: alicia.m.aleman at nasa.gov
Goddard Space Flight Center Code 610.2
Province or State: MD
Postal Code: 20771
McPherson, Benjamin F., Halley, Robert, 1996, The South Florida Environment: a region under stress, USGS Circular, 1134, Reston, VA, U.S. Geological Survey, Southern Florida NAWQA Program publication.
McPherson, Benjamin F., Miller, Ronald L.; Haag, Kim H.; Bradner, Anne, 2000, Water Quality in Southern Florida, 1996 - 98, USGS ... Circular, 1207, Reston, VA, U.S. Geological Survey.
Miller, Ronald L., McPherson, Benjamin F.; Haag, Kim H., 1999, Water quality in the southern Everglades and Big Cypress Swamp in the vicinity of the Tamiami Trail, 1996-97, USGS Water Resources Investigations Report, 99-4062, Reston, VA, U.S. Geological Survey.
Miller, Ronald L., McPherson, Benjamin F., 2001, Occurrence And Distribution Of Contaminants In Bottom Sediment and Water Of The Barron River Canal, Big Cypress National Preserve, Florida, October 1998, Florida Scientist, v. 64, n. 1, Orlando, FL, Florida Academy of Sciences, originally published in Florida Scientist, vol. 64, Winter, 2001, Number 1.
Creation and Review Dates
DIF Creation Date: 2007-12-03
Last DIF Revision Date: 2009-06-02