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ATom: Measurements from Airborne Tropospheric Hydrogen Oxides Sensor (ATHOS), V2

Metadata Updated: December 6, 2023

This dataset provides the mixing ratios of hydrogen oxides measured by the Airborne Tropospheric Hydrogen Oxides Sensor (ATHOS) during the ATom 1-4 campaigns. ATHOS uses laser-induced fluorescence (LIF) to measure hydroxide (OH) and hydroperoxyl (HO2) simultaneously. The measurements include OH and HO2 mixing ratios and the OH interference determined by chemical removal of OH. The reactivity of OH is measured by the OH Reactivity (OHR) instrument using the discharge flow method and is integrated into the ATHOS electronics. These data provide insights into the oxidative state of the global atmosphere. These data are useful for testing the oxidation chemistry in models and other analytical methods being developed to deduce the atmosphere's oxidative state.

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

A schematic of ATHOS looking from in front of the electronics rack (top) and from the DC-8 aircraft's port side (bottom).

Additional Metadata

Resource Type Dataset
Metadata Created Date May 30, 2023
Metadata Updated Date December 6, 2023
Publisher ORNL_DAAC
Maintainer
Identifier C2677118029-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 Brune, W.H., D.O. Miller, and A.B. Thames. 2021. ATom: Measurements from Airborne Tropospheric Hydrogen Oxides Sensor (ATHOS), V2. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1930
Graphic Preview Description A schematic of ATHOS looking from in front of the electronics rack (top) and from the DC-8 aircrafts port side (bottom).
Graphic Preview File https://daac.ornl.gov/ATOM/guides/ATom_ATHOS_Instrument_Data_V2_Fig1.png
Harvest Object Id 09b0b0a0-ed96-4736-93a9-53ea4da22c70
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.3334/ORNLDAAC/1930
Metadata Type geospatial
Old Spatial -180.0 -90.0 180.0 90.0
Program Code 026:001
Source Datajson Identifier True
Source Hash 6d7a926f8105dadef6b4c7749c06151b288adafc159fa3d8c9d4edc066453d84
Source Schema Version 1.1
Spatial
Temporal 2016-07-29T00:00:00Z/2018-05-21T23:59:59Z

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