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    • ABoVE/ASCENDS: Merged Atmospheric CO2, CH4, and Meteorological Data, 2017

    Metadata Updated: December 7, 2023

    This dataset provides in situ airborne measurements of atmospheric carbon dioxide (CO2), methane (CH4), water vapor concentrations, air temperature, pressure, and wind speed and direction as well as airborne remote sensing measurements of column average CO2 collected during Active Sensing of CO2 Emissions over Nights, Days, and Seasons (ASCENDS) deployments from 2017-07-20 to 2017-08-08 over Alaska, US, and the Yukon and Northwest Territories of Canada. CO2 and CH4 were measured with NASA's Atmospheric Vertical Observations of CO2 in the Earth's Troposphere (AVOCET) instrument. Water vapor and relative humidity were measured with Diode Laser Hydrometer. Measurements were taken onboard a DC-8 aircraft. The ASCENDS flights were coordinated with the 2017 Arctic-Boreal Vulnerability Experiment (ABoVE) campaign. The data are provided in ICARTT format along with an archive of flight videos.

    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 May 30, 2023
    Metadata Updated Date December 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    A map showing the ground tracks for the airborne campaign with a table summarizing each flight. The colors in the table match those shown in the ground tracks. Image is from the related dataset Abshire et al. (2022).

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date May 30, 2023
    Metadata Updated Date December 7, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2575399701-ORNL_CLOUD
    Data First Published 2023-02-09
    Language en-US
    Data Last Modified 2023-06-12
    Category ABoVE, ASCENDS Airborne, 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 Abshire, J.B., J. Mao, H. Riris, S.R. Kawa, and X. Sun. 2022. ABoVE/ASCENDS: Merged Atmospheric CO2, CH4, and Meteorological Data, 2017. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2114
    Graphic Preview Description A map showing the ground tracks for the airborne campaign with a table summarizing each flight. The colors in the table match those shown in the ground tracks. Image is from the related dataset Abshire et al. (2022).
    Graphic Preview File https://daac.ornl.gov/ABOVE/guides/ABoVE_ASCENDS_Merge_Fig1.png
    Harvest Object Id 303820e4-c61d-4fa3-a5bd-7f3696014d79
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/2114
    Metadata Type geospatial
    Old Spatial -165.68 34.59 -98.15 71.27
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 16984e5b00e578e048c15a48d6e3972682ca9d1c32b0f293a14315f43091c643
    Source Schema Version 1.1
    Spatial
    Temporal 2017-07-20T20:58:24Z/2017-08-09T00:35:59Z

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