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    • Low Elevation Coastal Zone (LECZ) Urban-Rural Population and Land Area Estimates, Version 2

    Metadata Updated: December 6, 2023

    The Low Elevation Coastal Zone (LECZ) Urban-Rural Population and Land Area Estimates, Version 2 data set consists of country-level estimates of urban population, rural population, total population and land area country-wide and in LECZs for years 1990, 2000, 2010, and 2100. The LECZs were derived from Shuttle Radar Topography Mission (SRTM), 3 arc-second (~90m) data which were post processed by ISciences LLC to include only elevations less than 20m contiguous to coastlines; and to supplement SRTM data in northern and southern latitudes. The population and land area statistics presented herein are summarized at the low coastal elevations of less than or equal to 1m, 3m, 5m, 7m, 9m, 10m, 12m, and 20m. Additionally, estimates are provided for elevations greater than 20m, and nationally. The spatial coverage of this data set includes 202 of the 232 countries and statistical areas delineated in the Gridded Rural-Urban Mapping Project version 1 (GRUMPv1) data set. The 30 omitted areas were not included because they were landlocked, or otherwise lacked coastal features. This data set makes use of the population inputs of GRUMPv1 allocated at 3 arc-seconds to match the SRTM elevations, and at 30 arc-seconds resolution in order to reflect uncertainty levels in the product resulting from the interplay of input population data resolutions (based on census Units) and the elevation data. Urban and rural areas are differentiated by the GRUMPv1 Urban Extents. This data set is produced by the Columbia University Center for International Earth Science Information Network (CIESIN).

    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

    References

    https://doi.org/10.7927/H4TM782G
    https://doi.org/10.7927/H4CC0XMD

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Graphic Preview

    Maps Download Page

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date December 6, 2023
    Publisher SEDAC
    Maintainer
    Identifier C1000000400-SEDAC
    Data First Published 2013-12-31
    Language en-US
    Data Last Modified 2013-12-31
    Category LECZ, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation Center for International Earth Science Information Network - CIESIN - Columbia University. 2013-12-31. Low Elevation Coastal Zone (LECZ) Urban-Rural Population and Land Area Estimates, Version 2. Version 2.00. Palisades, NY. Archived by National Aeronautics and Space Administration, U.S. Government, NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H4MW2F2J. https://doi.org/10.7927/H4MW2F2J.
    Creator Center for International Earth Science Information Network - CIESIN - Columbia University
    Graphic Preview Description Maps Download Page
    Graphic Preview File https://sedac.ciesin.columbia.edu/data/set/lecz-urban-rural-population-land-area-estimates-v2/maps
    Harvest Object Id cc26fbd1-c8d5-4a55-befc-d5047caf31f7
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.7927/H4MW2F2J
    Metadata Type geospatial
    Old Spatial -180.0 -58.0 180.0 85.0
    Program Code 026:001
    Related Documents https://doi.org/10.7927/H4TM782G, https://doi.org/10.7927/H4CC0XMD
    Release Place Palisades, NY
    Source Datajson Identifier True
    Source Hash 481b17f3b237b84cc30dc029f5cdd3286411d7553227450e8c9851d0b4e1bc5d
    Source Schema Version 1.1
    Spatial
    Temporal 1990-01-01T00:00:00Z/2100-01-01T00:00:00Z

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