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    • Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): Land and Geographic Unit Area Grids

    Metadata Updated: November 14, 2025

    The Global Rural-Urban Mapping Project, Version 1 (GRUMPv1): 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 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 data set 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).

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    No file downloads have been provided. The publisher may provide downloads in the future or they may be available from their other links.

    References

    https://doi.org/10.7927/H4VT1Q1H
    https://doi.org/10.7927/H4CR5R8J
    https://doi.org/10.7927/H44B2Z74
    https://doi.org/10.7927/H40K26HS
    https://doi.org/10.7927/H4R20Z93
    https://doi.org/10.7927/H4M906KR
    https://doi.org/10.7927/H4GH9FVG

    Dates

    Metadata Created Date December 1, 2022
    Metadata Updated Date November 14, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date November 14, 2025
    Publisher SEDAC
    Maintainer
    Identifier C2210238389-SEDAC
    Data First Published 2011-09-26
    Language en-US
    Data Last Modified 2025-07-17
    Category GRUMP, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 3d0f2b71-ac67-4cc6-84b2-0f39bec51984
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Metadata Type geospatial
    Old Spatial -180.0 -58.0 180.0 85.0
    Program Code 026:001
    Related Documents https://doi.org/10.7927/H4VT1Q1H, https://doi.org/10.7927/H4CR5R8J, https://doi.org/10.7927/H44B2Z74, https://doi.org/10.7927/H40K26HS, https://doi.org/10.7927/H4R20Z93, https://doi.org/10.7927/H4M906KR, https://doi.org/10.7927/H4GH9FVG
    Source Datajson Identifier True
    Source Hash 06e630a1ae551627ffd857108d7bd3e56c5a6d46b4fdc6133eef4ea996aa424e
    Source Schema Version 1.1
    Spatial
    Temporal 2000-07-01T00:00:00Z/2000-07-01T00:00:00Z

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