Skip to main content
ORNL DAAC HomeNASA Home

DAAC Home > Get Data > NASA Projects > Atmospheric Tomography Mission (ATom) > Landing page

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

A newer version exists.

Click the DOI link in the following citation for the latest version (as of 2021-08-13):

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

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/1745
Version1
Project
Published2020-01-23
Updated2022-03-10
Usage45 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
  • AIR QUALITY
  • ATMOSPHERE
  • ATMOSPHERIC CHEMISTRY
  • NITROGEN COMPOUNDS
  • ATMOSPHERE
  • ATMOSPHERIC CHEMISTRY
  • HALOCARBONS AND HALOGENS

Data Use and Citation

Download citation from Datacite
RISBibTexOther
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

See our Data Use and Citation Policy for more information.

Data Files

Access is restricted for ATom: L2 Measurements from the NOAA ToF Chemical Ionization Mass Spectrometer (CIMS). If you have questions about this product, please contact the ORNL DAAC User Support Office.

Companion Files

Toggle Companion Files

Sign in to download files.

Dataset has 1 companion files.

  • ATom_NOAA_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