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    • Ecosys Model-Estimated Cropland Carbon Fluxes, Illinois, Indiana, and Iowa, 2001-2018

    Metadata Updated: December 7, 2023

    This dataset contains daily estimates of carbon fluxes in croplands derived from the "ecosys" model covering a portion of the Midwestern US (Illinois, Indiana, and Iowa) at county-level resolution from 2001-2018. Ecosys simulates water, energy, carbon, and nutrient cycles simultaneously for various ecosystems, including agricultural systems at up to hourly resolution. Estimates include: gross primary productivity (GPP), net primary productivity (NPP), autotrophic respiration (Ra), heterotrophic respiration (Rh), or net ecosystem exchange (NEE). Data were generated by the ecosys model constrained by observational data, including USDA crop yield from USDA National Agricultural Statistics Service, and a remote-sensing-based SLOPE GPP product. Model performance was evaluated using observations from AmeriFlux towers at agricultural sites within the study area. Agriculture in the US Midwest produces significant quantities of corn and soybeans, which are key elements to the global food supply. The data are provided in shapefile format.

    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

    Dates

    Metadata Created Date July 27, 2023
    Metadata Updated Date December 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Figure 1: Model-estimated net primary production over the study area on July 18, 2018.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date July 27, 2023
    Metadata Updated Date December 7, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2732596448-ORNL_CLOUD
    Data First Published 2023-07-13
    Language en-US
    Data Last Modified 2023-07-14
    Category CMS, 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 Zhou, W., K. Guan, and B. Peng. 2023. Ecosys Model-Estimated Cropland Carbon Fluxes, Illinois, Indiana, and Iowa, 2001-2018. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2125
    Graphic Preview Description Figure 1: Model-estimated net primary production over the study area on July 18, 2018.
    Graphic Preview File https://daac.ornl.gov/CMS/guides/Cropland_Carbon_Fluxes_Fig1.png
    Harvest Object Id b68a00ea-3302-4fb9-a847-f2fe6757934e
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/2125
    Metadata Type geospatial
    Old Spatial -96.64 36.97 -84.78 43.5
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 52df9ce31efee6e201c4f6e70694e2b686c2ebee926f51850f662948582f4e10
    Source Schema Version 1.1
    Spatial
    Temporal 2001-01-01T00:00:00Z/2018-12-31T23:59:59Z

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