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    • ACT-America: L2 In Situ Atmospheric CO2, CO, CH4, and O3 Concentrations, Eastern USA

    Metadata Updated: December 7, 2023

    This dataset provides atmospheric carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), water vapor (H2O), and ozone (O3) concentrations collected during airborne campaigns conducted by the Atmospheric Carbon and Transport-America (ACT-America) project. ACT-America's mission spanned 4 years and included five 6-week airborne campaigns covering all 4 seasons and 3 regions of the central and eastern United States. This dataset provides results from all five campaigns, including Summer 2016, Winter 2017, Fall 2017, Spring 2018, and Summer 2019. Two instrumented aircraft platforms, the NASA Langley Beechcraft B200 King Air and the NASA Goddard Space Flight Center's C-130H Hercules, were used to collect high-quality in situ measurements across a variety of continental surfaces and atmospheric conditions. CO2, CO, CH4, and H2O were collected with an infrared cavity ring-down spectrometer system (CRDS; Picarro Inc.). Ozone data were collected with a dual beam differential UV absorption ozone monitor (Model 205; 2B Technologies). Both aircraft hosted identical arrays of in situ sensors. Complete aircraft flight information including, but not limited to, latitude, longitude, altitude, and meteorological conditions are also provided.

    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

    Flight paths for all five airborne campaigns of ACT-America. Flights were concentrated on three study areas: the northeast, south-central, and midwest regions of the United States.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 27, 2023
    Metadata Updated Date December 7, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2706347267-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 DiGangi, J.P., Y. Choi, J.B. Nowak, H.S. Halliday, M.M. Yang, B.C. Baier, and C. Sweeney. 2018. ACT-America: L2 In Situ Atmospheric CO2, CO, CH4, and O3 Concentrations, Eastern USA. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1556
    Graphic Preview Description Flight paths for all five airborne campaigns of ACT-America. Flights were concentrated on three study areas: the northeast, south-central, and midwest regions of the United States.
    Graphic Preview File https://daac.ornl.gov/ACTAMERICA/guides/ACTAMERICA_PICARRO_Fig1.png
    Harvest Object Id b4b6eab7-b8b1-4067-958c-c73aa24e2602
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1556
    Metadata Type geospatial
    Old Spatial -110.0 25.0 -70.0 50.55
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 956afeb76185aff9d79e44663c0b5d0f7cee5cb553d05ef38347e6e4c12c6ea0
    Source Schema Version 1.1
    Spatial
    Temporal 2016-07-11T16:12:05Z/2019-07-27T20:10:34Z

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