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    • OCO-2 GEOS Level 3 monthly, 0.5x0.625 assimilated CO2 V10r (OCO2_GEOS_L3CO2_MONTH) at GES DISC

    Metadata Updated: December 6, 2023

    This is the Gridded Monthly OCO-2 Carbon Dioxide assimilated dataset.

    The OCO-2 mission provides the highest quality space-based XCO2 retrievals to date. However, the instrument data are characterized by large gaps in coverage due to OCO-2’s narrow 10-km ground track and an inability to see through clouds and thick aerosols. This global gridded dataset is produced using a data assimilation technique commonly referred to as state estimation within the geophysical literature. Data assimilation synthesizes simulations and observations, adjusting the state of atmospheric constituents like CO2 to reflect observed values, thus gap-filling observations when and where they are unavailable based on previous observations and short transport simulations by GEOS. Compared to other methods, data assimilation has the advantage that it makes estimates based on our collective scientific understanding, notably of the Earth’s carbon cycle and atmospheric transport.

    OCO-2 GEOS (Goddard Earth Observing System) Level 3 data are produced by ingesting OCO-2 L2 retrievals every 6 hours with GEOS CoDAS, a modeling and data assimilation system maintained by NASA’s Global Modeling and Assimilation Office (GMAO). GEOS CoDAS uses a high-performance computing implementation of the Gridpoint Statistical Interpolation approach for solving the state estimation problem. GSI finds the analyzed state that minimizes the three-dimensional variational (3D-Var) cost function formulation of the state estimation problem.

    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 December 1, 2022
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Graphic Preview

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 6, 2023
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C2240248790-GES_DISC
    Data First Published 2022-03-01
    Language en-US
    Data Last Modified 2022-03-01
    Category OCO-2, 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 Brad Weir, Lesley Ott and OCO-2 Science Team. 2022-03-31. OCO2_GEOS_L3CO2_MONTH. Version 10r. OCO-2 GEOS Level 3 monthly, 0.5x0.625 assimilated CO2 V10r. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/BGFIODET3HZ8. https://disc.gsfc.nasa.gov/datacollection/OCO2_GEOS_L3CO2_MONTH_10r.html. Digital Science Data.
    Creator Brad Weir, Lesley Ott and OCO-2 Science Team
    Data Presentation Form Digital Science Data
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_GEOS_L3CO2_MONTH_10r__201808.png
    Harvest Object Id a5d6937d-f7d0-4bf1-91d4-220b65012a25
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/BGFIODET3HZ8
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Release Place Greenbelt, MD, USA
    Series Name OCO2_GEOS_L3CO2_MONTH
    Source Datajson Identifier True
    Source Hash 9757431d0ea14880b8a06de61d10b8fd8a5835c15c72781439ac2326ffdec9f2
    Source Schema Version 1.1
    Spatial
    Temporal 2014-06-01T00:00:00Z/2023-02-28T00:00:00Z

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