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ATom: In Situ Data from Caltech Chemical Ionization Mass Spectrometer (CIT-CIMS), V2

Metadata Updated: December 6, 2023

This dataset provides the concentrations of gas-phase organic and inorganic analytes measured by the California Institute of Technology (CIT) Chemical Ionization Mass Spectrometer (CIMS), or CIT-CIMS, flown on the NASA DC-8 aircraft during the four ATom campaigns. The CIT-CIMS employs CF3O-ion chemistry with two independent mass spectrometers (compact time-of-flight and triple quadrupole) to enable sensitive and specific measurements of atmospheric trace gases. The measurements include hydrogen peroxide (H2O2), hydrogen cyanide (HCN), nitric acid (HNO3), methyl hydrogen peroxide (CH3OOH), peroxyacetic acid (C2O3H4), peroxynitric acid (HO2NO2), and sulfur dioxide (SO2), in units of parts-per-trillion-by-volume.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date May 30, 2023
Metadata Updated Date December 6, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Measurements of Hydrogen Cyanide from the CIT-CIMS instrument collected during ATom-2 flights.

Additional Metadata

Resource Type Dataset
Metadata Created Date May 30, 2023
Metadata Updated Date December 6, 2023
Publisher ORNL_DAAC
Maintainer
Identifier C2677129501-ORNL_CLOUD
Data First Published 2022-01-03
Language en-US
Data Last Modified 2023-06-12
Category ATom, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Allen, H.M., J.D. Crounse, M.J. Kim, A.P. Teng, L. Xu, and P.O. Wennberg. 2021. ATom: In Situ Data from Caltech Chemical Ionization Mass Spectrometer (CIT-CIMS), V2. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1927
Graphic Preview Description Measurements of Hydrogen Cyanide from the CIT-CIMS instrument collected during ATom-2 flights.
Graphic Preview File https://daac.ornl.gov/ATOM/guides/ATom_CIT_Instrument_Data_V2_Fig1.png
Harvest Object Id ee083321-8b53-42d5-862b-321d8f2f37d7
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.3334/ORNLDAAC/1927
Metadata Type geospatial
Old Spatial -180.0 -90.0 180.0 90.0
Program Code 026:001
Source Datajson Identifier True
Source Hash b910087ef420700355d36dc644738c1be188dda027c59aaf184f76c94ff5490e
Source Schema Version 1.1
Spatial
Temporal 2016-07-29T00:00:00Z/2018-05-21T23:59:59Z

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