ATom: L2 In Situ Measurements from the NCAR Airborne Oxygen Instrument (AO2), V2

Description

This dataset provides in situ atmospheric oxygen and carbon dioxide concentrations measured by the NCAR Airborne Oxygen Instrument (AO2) during airborne campaigns conducted by NASA's Atmospheric Tomography (ATom) mission. The AO2 Instrument measures O2 concentration using a vacuum-ultraviolet absorption technique. ATom deploys an extensive gas and aerosol payload on the NASA DC-8 aircraft for a systematic, global-scale sampling of the atmosphere, profiling continuously from 0.2 to 12 km altitude. Flights occurred in each of 4 seasons from 2016 to 2018. Flights originate from the Armstrong Flight Research Center in Palmdale, California, fly north to the western Arctic, south to the South Pacific, east to the Atlantic, north to Greenland, and return to California across central North America. ATom establishes a single, contiguous, global-scale dataset. This comprehensive dataset will be used to improve the representation of chemically reactive gases and short-lived climate forcers in global models of atmospheric chemistry and climate.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1880
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1880
33 ATom: L2 In Situ Measurements from the NCAR Airborne Oxygen Instrument (AO2), V2: AO2_readme_210126.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_AO2_Instrument_Data_V2/comp/AO2_readme_210126.pdf
21 ATom campaign page https://daac.ornl.gov/ATOM/campaign/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ATOM/guides/ATom_AO2_Instrument_Data_V2.html
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/atom/ATom_AO2_Instrument_Data_V2/
33 ATom: L2 In Situ Measurements from the NCAR Airborne Oxygen Instrument (AO2), V2: ATom_AO2_Instrument_Data_V2.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/ATom_AO2_Instrument_Data_V2/comp/ATom_AO2_Instrument_Data_V2.pdf
34 Example cross-sections of CO2, O2, and APO (O2 + 1.1 * CO2) measured by AO2 (interpolated flight track data) and the Medusa flask sampler (filled circles) during the Pacific southbound flights of Atom-4 in April-May, 2018. Source: NCAR Earth Observing Laboratory https://daac.ornl.gov/ATOM/guides/ATom_AO2_Instrument_Data_Fig1.png

Tags

  • atmosphere
  • atmospheric-chemistry
  • air-quality
  • earth-science

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