ATom: L2 Measurements from NOAA ToF Chemical Ionization Mass Spectrometer, Version 2

Description

This dataset provides the mixing ratios of reactive nitrogen and halogen species measured by the NOAA Iodide Ion Time-of-Flight Chemical Ionization Mass Spectrometer (NOAA CIMS) during airborne campaigns conducted by NASA's Atmospheric Tomography (ATom) mission for ATom-3 and ATom-4 campaigns. The NOAA CIMS uses chemical ionization mass spectrometric detection of gas phase organic and inorganic analytes via I- adduct formation. Measurements for ATom include N2O5 (dinitrogen pentoxide), ClNO2 (chloro nitrite), Cl2 (Chlorine), HCOOH (formic acid), C2H4O3S (hydroperoxymethyl thioformate), BrCl (bromine monochloride), BrCN (cyanogen bromide), and BrO (bromine monoxide). ATom deploys an extensive gas and aerosol payload on the NASA DC-8 aircraft for systematic, global-scale sampling of the atmosphere, profiling continuously from 0.2-13 km altitude. 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 This link allows direct data access via Earthdata login https://daac.ornl.gov/atom/NOAA_ToF_CIMS_Instrument_Data/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ATOM/guides/NOAA_ToF_CIMS_Instrument_Data.html
34 Bromine chloride measurements from the NOAA CIMS instrument during the ATom-3 campaign. https://daac.ornl.gov/ATOM/guides/NOAA_ToF_CIMS_Instrument_Data_Fig1.png
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1921
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1921
21 ATom campaign page https://daac.ornl.gov/ATOM/campaign/
33 ATom: L2 Measurements from NOAA ToF Chemical Ionization Mass Spectrometer, Version 2: NOAA_ToF_CIMS_Instrument_Data.pdf https://data.ornldaac.earthdata.nasa.gov/public/atom/NOAA_ToF_CIMS_Instrument_Data/comp/NOAA_ToF_CIMS_Instrument_Data.pdf

Tags

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

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