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ATom: L2 Measurements from the NOAA ToF Chemical Ionization Mass Spectrometer (CIMS)

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/1745
Version1
Project
Published2020-01-23
Updated2020-01-23
Usage7 downloads

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. 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 to 13 km altitude. Flights occurred in each of 4 seasons from 2016 to 2018. 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.

Science Keywords

  • ATMOSPHERE
  • ATMOSPHERIC CHEMISTRY
  • HALOCARBONS AND HALOGENS
  • ATMOSPHERE
  • AIR QUALITY
  • ATMOSPHERE
  • ATMOSPHERIC CHEMISTRY
  • NITROGEN COMPOUNDS

Data Use and Citation

This dataset is openly shared, without restriction, in accordance with the NASA Data and Information Policy.

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Crosscite Citation Formatter
Veres, P.R., J.A. Neuman, and T.B. Ryerson. 2019. ATom: L2 Measurements from the NOAA ToF Chemical Ionization Mass Spectrometer (CIMS). ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1745

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Dataset has 1 companion files.

  • ATom_NOAA_CIMS_Instrument_Data.pdf