ISLSCP II Global Population of the World

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.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F975
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ISLSCP_II/guides/global_population_xdeg.html
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/975
21 Data Set Documentation https://data.ornldaac.earthdata.nasa.gov/public/islscp_ii/socioeconomic/global_population_xdeg/comp/0_global_population_readme.txt
33 Data Set Documentation https://data.ornldaac.earthdata.nasa.gov/public/islscp_ii/socioeconomic/global_population_xdeg/comp/1_global_population_doc.pdf
34 Browse Image https://daac.ornl.gov/graphics/browse/sdat-tds/975_1_fit.png
21 Web Coverage Service for this collection. https://webmap.ornl.gov/wcsdown/dataset.jsp?ds_id=975
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/daacdata/islscp_ii/socioeconomic/global_population_xdeg/
21 The THREDDS location for this Collection. https://thredds.daac.ornl.gov/thredds/catalog/ornldaac/975/catalog.html

Tags

  • population
  • land-use-land-cover
  • land-surface
  • national-geospatial-data-asset
  • human-dimensions
  • ngda
  • earth-science

Topics

Categories