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    • ACT-America: L2 In Situ Atmospheric Gas Concentrations from Flasks, Eastern USA

    Metadata Updated: December 7, 2023

    This dataset provides atmospheric carbon dioxide (CO2), methane (CH4), carbon monoxide (CO), molecular hydrogen (H2), nitrous oxide (N2O), sulfur hexafluoride (SF6), and other trace gas mole fractions (i.e., concentrations) from airborne campaigns over North America for the NASA Atmospheric Carbon and Transport - America (ACT-America) project. ACT-America's mission spanned five years and included five six-week field campaigns covering all four seasons and three regions of the central and eastern United States. Two instrumented aircraft platforms, the NASA Langley Beechcraft B-200 King Air and the NASA Goddard Space Flight Center's C-130 Hercules, were used to collect high-quality in situ measurements across a variety of continental surfaces and atmospheric conditions. The data were derived from laboratory measurements of whole air samples collected by Programmable Flask Packages (PFP) onboard the two ACT-America aircraft. Approximately 10 - 12 discrete flask samples were captured during each of the 195 flights. This dataset provides results from all five campaigns, including Summer 2016, Winter 2017, Fall 2017, Spring 2018, and Summer 2019.

    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 June 27, 2023
    Metadata Updated Date December 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Locations of ACT-America flask air samples collected during all five airborne campaigns from 2016 to 2019.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 27, 2023
    Metadata Updated Date December 7, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2706340483-ORNL_CLOUD
    Data First Published 2021-02-02
    Language en-US
    Data Last Modified 2023-06-12
    Category ACT-America, 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 Sweeney, C., B.C. Baier, J.B. Miller, P. Lang, B.R. Miller, S. Lehman, S.E. Michel, and M.M. Yang. 2018. ACT-America: L2 In Situ Atmospheric Gas Concentrations from Flasks, Eastern USA. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1575
    Graphic Preview Description Locations of ACT-America flask air samples collected during all five airborne campaigns from 2016 to 2019.
    Graphic Preview File https://daac.ornl.gov/ACTAMERICA/guides/ACTAMERICA_PFP_Fig1.png
    Harvest Object Id c369f723-1c49-49af-be53-1db19caadd83
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1575
    Metadata Type geospatial
    Old Spatial -105.89 27.79 -72.94 49.4
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash aa8a7fae608119b3ecd5a85e8ba7cc22fb8290baac0c1fccda16050608b71947
    Source Schema Version 1.1
    Spatial
    Temporal 2016-05-27T15:11:11Z/2019-07-27T19:58:45Z

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