Abstract:
Gridded Population of the World, Version 3 (GPWv3) Land and Geographic Unit 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 provides a ... quantitative surface that indicates the size of the input unit(s) from which population count and density grids are derived..GPWv3 is produced by the Columbia University Center for International Earth Science Information Network (CIESIN) in collaboration with Centro Internacional de Agricultura Tropical (CIAT).
The data in ARC/INFO Grid, American Standard Code for Information Interchange (ASCII) and Band Interleaved by Line (BIL) formats are available from the NASA Socioeconomic Data and Applications Center (SEDAC).
Purpose:
To provide a quantitative measure of the input resolution of administrative units used for GPWv3.
Dataset Originator/Creator:
Center for International Earth Science Information Network (CIESIN)/Columbia University, and Centro Internacional de Agricultura Tropical (CIAT)
Dataset Title:
Gridded Population of the World, Version 3 (GPWv3): Land and Geographic Unit Area Grids
Dataset Release Date:
200512
Dataset Release Place:
Palisades, NY
Dataset Publisher:
NASA Socioeconomic Data and Applications Center (SEDAC)
Department of Geography and Environemental Management
University of Waterloo
200 University Avenue West
City:
Waterloo
Province or State:
Ontario
Postal Code:
N2L 3G1
Country:
Canada
Publications/References
Brown, R.D. 1995. Spatial and temporal variability of North American snow cover, 1971-1992. Proc. Eastern Snow Conf., 52nd Annual Meeting, 6-8 June 1995, Toronto, Ontario, 69-78. Brown, R.D. and R.O. Braaten, 1998. Spatial and temporal variability of Canadian monthly snow depths, 1946-1995. Atmosphere-Ocean, 36, 37-45. Brown, R.D., 2000: Northern Hemisphere snow cover variability and change, 1915-1997. J. Climate, 13, 2339-2355. Groisman, P. Ya, T.R. Karl, and R.W. Knight, 1994: Changes of snow cover, temperature and radiative heat balance over the Northern Hemisphere. J. Climate, 7, 1633-1656.
