Gridded Population of the World, Version 4 (GPWv4): National Identifier Grid, Revision 11

Description

The Gridded Population of the World, Version 4 (GPWv4): National Identifier Grid, Revision 11 is a raster representation of nation-states in GPWv4 for use in aggregating population data. This data set was produced from the input census Units which were used to create a raster surface where pixels that cover the same census data source (most often a country or territory) have the same value. Note that these data are not official representations of country boundaries; rather, they represent the area covered by the input data. In cases where multiple countries overlapped a given pixel (e.g. on national borders), the pixels were assigned the country code of the input data set which made up the majority of the land area. The data file was produced as a global raster at 30 arc-second (~1 km at the equator) resolution. To enable faster global processing, and in support of research commUnities, the 30 arc-second data were aggregated to 2.5 arc-minute, 15 arc-minute, 30 arc-minute and 1 degree resolutions. Each level of aggregation results in the loss of one or more countries with areas smaller than the cell size of the final raster. Rasters of all resolutions were also converted to polygon shapefiles.

Resources

Name Format Description Link
21 Data Download Page https://sedac.ciesin.columbia.edu/data/set/gpw-v4-national-identifier-grid-rev11/data-download
21 Maps Download Page https://sedac.ciesin.columbia.edu/data/set/gpw-v4-land-water-area-rev11/maps
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.7927%2FH4TD9VDP
21 Documentation Page http://sedac.ciesin.columbia.edu/data/set/gpw-v4-national-identifier-grid-rev11/docs
21 Web Map Service Page https://sedac.ciesin.columbia.edu/data/set/gpw-v4-land-water-area-rev11/maps/services
21 Data Set Overview Page https://sedac.ciesin.columbia.edu/data/set/gpw-v4-national-identifier-grid-rev11
22 Sample browse graphic of the data set. https://sedac.ciesin.columbia.edu/downloads/maps/gpw-v4/gpw-v4-national-identifier-grid-rev11/gpw-v4-national-identifier-grid-rev11-thumbnail.jpg

Tags

  • human-dimensions
  • boundaries
  • earth-science

Topics

Categories