ATom: L2 Measurements from the NOAA ToF Chemical Ionization Mass Spectrometer (CIMS)
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.
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| Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | Distribution: ICARTT |
| Temporal Extent: | Platform(s): | NASA DC-8 | |
| Data Center(s): | ORNL_DAAC | Instrument(s): | CIMS |
| Version: | 1 | ||
- Other Citation Details: 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
- GENERAL DOCUMENTATION: https://daac.ornl.gov/ATOM/guides/ATom_NOAA_CIMS_Instrument_Data.html, ORNL DAAC Data Set Documentation
- GENERAL DOCUMENTATION: https://daac.ornl.gov/daacdata/atom/ATom_NOAA_CIMS_Instrument_Data/comp/ATom_NOAA_CIMS_Instrument_Data.pdf, ATom: Measurements from the NOAA Iodide Ion ToF CIMS: ATom_NOAA_CIMS_Instrument_Data.pdf
Collection Information
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DOI
10.3334/ORNLDAAC/1745
https://doi.org
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Data Identification
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Processing Level
2
Derived geophysical variables at the same resolution as L1 source data
- Quality
-
Collection Progress
Complete
Data Dates
| Creation | |
| Last Revision |
Related URLs
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| ATom | No campaigns listed. | No dates provided. |
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | CARTESIAN |
Location Keywords
- GEOGRAPHIC REGION
- GLOBAL
Data Centers
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ORNL_DAAC
ARCHIVER-
ORNL DAAC User Services Office, P.O. Box 2008, MS 6407, Oak Ridge National Laboratory
Oak Ridge, Tennessee 37831-6407
(865) 241-3952
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Data Contacts
There are no listed data contacts for this collection.
Archive And Distribution Information
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Format: ICARTT
Format Type: Native
Fees: 0