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    • Country-Level Population and Downscaled Projections Based on the SRES A1, B1, and A2 Scenarios, 1990-2100

    Metadata Updated: April 24, 2025

    The Country-Level Population and Downscaled Projections Based on Special Report on Emissions Scenarios (SRES) A1, B1, and A2 Scenarios, 1990-2100, were adopted in 2000 from population projections realized at the International Institute for Applied Systems Analysis (IIASA) in 1996. The Intergovernmental Panel on Climate Change (IPCC) SRES A1 and B1 scenarios both used the same IIASA "rapid" fertility transition projection, which assumes low fertility and low mortality rates. The SRES A2 scenario used a corresponding IIASA "slow" fertility transition projection (high fertility and high mortality rates). Both IIASA low and high projections are performed for 13 world regions including North Africa, Sub-Saharan Africa, China and Centrally Planned Asia, Pacific Asia, Pacific OECD, Central Asia, Middle East, South Asia, Eastern Europe, European part of the former Soviet Union, Western Europe, Latin America, and North America. This data set is produced and distributed 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/H4XW4GQ1
    https://doi.org/10.7927/H4PC308P
    https://doi.org/10.7927/H4NC5Z4X
    https://doi.org/10.7927/H4HQ3WTH

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date April 24, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date April 24, 2025
    Publisher SEDAC
    Maintainer
    Identifier C179001918-SEDAC
    Data First Published 2002-07-31
    Language en-US
    Data Last Modified 2025-04-23
    Category SDP, 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 609fffc2-099b-48b0-bdab-d4dc1d1d03bd
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.7927/H4T43R01
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Related Documents https://doi.org/10.7927/H4XW4GQ1, https://doi.org/10.7927/H4PC308P, https://doi.org/10.7927/H4NC5Z4X, https://doi.org/10.7927/H4HQ3WTH
    Source Datajson Identifier True
    Source Hash b46da41cfb3acf5d02ceb66835535abeb4a2fe5161ae1b152accb2b8e5fe3049
    Source Schema Version 1.1
    Spatial
    Temporal 1990-01-01T00:00:00Z/2100-12-31T00:00:00Z

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