Skip to main content
ORNL DAAC HomeNASA Home

DAAC Home > Get Data > Regional/Global > International Satellite Land Surface Climatology Project (ISLSCP II) > Data Files

ISLSCP II Global Population of the World

Overview

Data setISLSCP II Global Population of the World
DOIhttps://doi.org/10.3334/ORNLDAAC/975
Release date2010-04-19
ProjectInternational Satellite Land Surface Climatology Project (ISLSCP II)
Time period1990-01-01 to 1995-12-31

Usage Metrics

CountEarliest DateLatest DateData Usage
Citations120132013Publications citing this data set
Downloads29232010-04-212017-06-2617374 total files downloaded

Description

Global Population of the World (GPW) translates census population data to a latitude-longitude grid so that population data may be used in cross-disciplinary studies. There are three data files with this data set for the reference years 1990 and 1995. Over 127,000 administrative units and population counts were collected and integrated from various sources to create the gridded data. In brief, GPW was created using the following steps: * Population data were estimated for the product reference years, 1990 and 1995, either by the data source or by interpolating or extrapolating the given estimates for other years. * Additional population estimates were created by adjusting the source population data to match UN national population estimates for the reference years. * Borders and coastlines of the spatial data were matched to the Digital Chart of the World where appropriate and lakes from the Digital Chart of the World were added. * The resulting data were then transformed into grids of UN-adjusted and unadjusted population counts for the reference years. * Grids containing the area of administrative boundary data in each cell (net of lakes) were created and used with the count grids to produce population densities. As with any global data set based on multiple data sources, the spatial and attribute precision of GPW is variable. The level of detail and accuracy, both in time and space, vary among the countries for which data were obtained.

Data set documentation

Citation

Download citation from Datacite
RISBibTexOther
Crosscite Citation Formatter
Balk, D., U. Deichmann, G. Yetman, F.G. Hall, G.J. Collatz, B.W. Meeson, S.O. Los, E.Brown De Colstoun, and D.R. Landis. 2010. ISLSCP II Global Population of the World. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/975

See our Data Citations and Acknowledgements policy for more information.

Data Files

Sign in to download data set files.

Data File (Granule)File SizeDates
gpw_population_counts_xdeg.zip 2.9MB 1990-01-01 to 1995-12-31
gpw_land_area_xdeg.zip 364.8KB 1990-01-01 to 1995-12-31
gpw_population_density_xdeg.zip 1.2MB 1990-01-01 to 1995-12-31

Companion Files

Expand for companion files
Toggle Companion Files

Sign in to download companion files.

Data set has 2 companion files.

  • 0_global_population_readme.txt
  • 1_global_population_doc.pdf

Visualize and Subset Data

Advanced Data Access through THREDDS Data Sever