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    • AIRS/Aqua L3 daily CO2 in the free troposphere (AIRS-only) 2.5 degrees x 2 degrees V005 (AIRS3C2D) at GES DISC

    Metadata Updated: December 7, 2023

    The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. In combination with the Advanced Microwave Sounding Unit (AMSU) and the Humidity Sounder for Brazil (HSB), AIRS constitutes an innovative atmospheric sounding group of visible, infrared, and microwave sensors. This product is the AIRS mid-tropospheric Carbon Dioxide (CO2) Level 3 Daily Gridded Retrieval, from the AIRS instrument on board of Aqua satellite. It is daily gridded data, at 2.5x2 deg (lon)x(lat) grid cell size. The data is in mole fraction units (data x 10^6 =ppm in volume). This is a total tropospheric column property. The file format is HDF-EOS 2.12 corresponding to HDF4. This AIRS mid-tropospheric CO2 Level 3 daily Gridded Retrieval Product contains standard retrieval means, standard deviations and input counts as well as the latitude and longitude arrays giving the centers of the grid boxes. Each file covers a 24-hour period. The mean values are simply the arithmetic means of the individual CO2 retrievals which fall within that grid box over the period. The mid-tropospheric CO2 retrievals have been averaged and binned into 2.5 x 2 deg grid cells, from -180.0 to +180.0 deg longitude and from -60.0 to +90.0 deg latitude. For each grid map of 4-byte floating-point mean values there is a corresponding 4-byte floating-point map of standard deviation and a 2-byte integer grid map of counts. The counts map provides the user with the number of points per bin that were included in the mean.

    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 November 12, 2020
    Metadata Updated Date December 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    AIRS dily CO2, Aug 5, 2004

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date December 7, 2023
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C1238517258-GES_DISC
    Data First Published 2010-01-01
    Language en-US
    Data Last Modified 2017-02-28
    Category Aqua, 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 AIRS Science Team/Joao Teixeira. 2009-10-15. AIRS3C2D. Version 005. AIRS/Aqua L3 Daily CO2 in the free troposphere (AIRS-only) 2.5 degrees x 2 degrees V005. 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/Aqua/AIRS/DATA335. https://disc.gsfc.nasa.gov/datacollection/AIRS3C2D_005.html. Digital Science Data.
    Creator AIRS Science Team/Joao Teixeira
    Data Presentation Form Digital Science Data
    Graphic Preview Description AIRS dily CO2, Aug 5, 2004
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/AIRS3C2D_005.png
    Harvest Object Id 8a35b10e-21f6-4254-802b-35c2d51e024c
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/Aqua/AIRS/DATA335
    Metadata Type geospatial
    Old Spatial -180.0 -60.0 180.0 90.0
    Program Code 026:001
    Release Place Greenbelt, MD, USA
    Series Name AIRS3C2D
    Source Datajson Identifier True
    Source Hash 43bb00495170f62b0debe31de4b28b780fc1283c7538aea7936a504c47541b8b
    Source Schema Version 1.1
    Spatial
    Temporal 2010-01-01T00:00:00Z/2017-02-28T23:59:59.999Z

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