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

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/1921
Version2
Project
Published2021-08-13
Usage379 downloads
Citations3 publications cited this dataset
Download Data28.2 MBUser Guide

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.

Science Keywords

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

Data Use and Citation

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Crosscite Citation Formatter
Veres, P.R., J.A. Neuman, and T.B. Ryerson. 2021. ATom: L2 Measurements from NOAA ToF Chemical Ionization Mass Spectrometer, Version 2. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1921

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Data Files

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Companion Files

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Dataset has 1 companion files.

  • NOAA_ToF_CIMS_Instrument_Data.pdf

Version History

VersionDataset TitlePublished
1ATom: L2 Measurements from the NOAA ToF Chemical Ionization Mass Spectrometer (CIMS)2020-01-23
2ATom: L2 Measurements from NOAA ToF Chemical Ionization Mass Spectrometer, Version 22021-08-13