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    • STAQS AVIRIS-NG-derived Methane and Carbon Dioxide Plumes, 2023

    Metadata Updated: August 29, 2025

    This dataset contains enhanced column-integrated methane (CH4) and carbon dioxide (CO2) (concentration lengths) acquired from 211 flight lines across North America imaged by the Airborne Visible/Infrared Imaging Spectrometer-Next Generation (AVIRIS-NG) between June 26 and August 15, 2023 for NASA's Synergistic TEMPO Air Quality Science (STAQS) campaign. Enhanced CH4 and CO2 concentrations were estimated from the L1B radiance measurements using a cluster matched filter approach. This algorithm searches each pixel's radiance spectrum for deviations that are characteristic of a greenhouses gas's absorption spectrum. A total of 177 greenhouse gas plumes were identified and delineated, of which 74 were CH4 and 103 were CO2. The data are provided in GeoTIFF and JSON formats.

    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 3, 2025
    Metadata Updated Date August 29, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date July 3, 2025
    Metadata Updated Date August 29, 2025
    Publisher ORNL_DAAC
    Maintainer
    Identifier 10.3334/ORNLDAAC/2406
    Data Last Modified 2025-08-28
    Category Earth Science
    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 75782b7c-0a71-43e2-ad82-a5b9778c4fc3
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://search.earthdata.nasa.gov/search?q=AVIRIS-NG_CH4_CO2_Plumes_2406&ac=true
    Old Spatial {"WestBoundingCoordinate":-119.678,"NorthBoundingCoordinate":43.6502,"EastBoundingCoordinate":-73.0945,"SouthBoundingCoordinate":33.7137},"CARTESIAN"
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash 18b9b12f731bfa4f73b0e908ec0e0f2e2f202449ebc91acbac14ce33d5160a2e
    Source Schema Version 1.1
    Spatial
    Temporal 2023-06-26/2023-06-26

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