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Description

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.

Product Summary

Platforms
NASA DC-8
Instruments
ATHOS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2016-07-29 to 2018-05-21
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C2677118029-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
138
Processing Level
2
Published
Updated
Science Keywords
Air Quality ,
Hydrogen Oxides ,
Hydroperoxy

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Brune, W. H., Miller, D. O., & Thames, A. B. (2021). ATom: Measurements from Airborne Tropospheric Hydrogen Oxides Sensor (ATHOS), V2 (Version 2). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1930 Date Accessed: 2026-05-02

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
Observationally Constrained NOxCatalyzed Ozone Production in the Upper Troposphere During the Asian Summer Monsoon Waxman, E. M., Gao, R.S., Thornberry, T., McLaughlin, R., Novak, G., Atlas, E., Schauffler, S., Treadaway, V., Smith, K., Lueb, R., Hendershot, R., Campos, T., Wolfe, G., St. Clair, J. M., Delaria, E., Anderson, D., Viciani, S., DAmato, F., Bianchini, G., Barucci, M., Gurganus, C., Iraci, L., Podolske, J., Diskin, G., Choi, Y., DiGangi, J., Bui, T. P., DeanDay, J., Gatebe, C., Pan, L. L., Rollins, A. Reflectance, Albedo, Anisotropy, Air Quality, Hydrogen Oxides, Hydroperoxy
Global Scale Inversions from MOPITT CO and MODIS AOD Gaubert, Benjamin, Edwards, David P., Anderson, Jeffrey L., Arellano, Avelino F., Barre, Jerome, Buchholz, Rebecca R., Darras, Sabine, Emmons, Louisa K., Fillmore, David, Granier, Claire, Hannigan, James W., Ortega, Ivan, Raeder, Kevin, Soulie, Antonin, Tang, Wenfu, Worden, Helen M., Ziskin, Daniel Biomass Burning, Halocarbons And Halogens, Trace Gases/Trace Species, Sulfur Compounds, Air Quality, Atmospheric Carbon Monoxide, Atmospheric Ozone, Non-methane Hydrocarbons/Volatile Organic Compounds, Fossil Fuel Burning, Industrial Emissions, Atmospheric Carbon Dioxide, Carbonaceous Aerosols, Carbon Monoxide, Methane, Hydrogen Oxides, Hydroperoxy, Aerosol Backscatter, Aerosol Extinction, Aerosol Optical Depth/Thickness, Angstrom Exponent, Aerosol Particle Properties, Aerosol Radiance, Cloud Condensation Nuclei, Dust/Ash/Smoke, Nitrate Particles, Organic Particles, Particulate Matter, Sulfate Particles, Optical Depth/Thickness, Radiative Flux, Reflectance
Nitrogen oxides in the free troposphere: implications for tropospheric oxidants and the interpretation of satellite NO2 measurements Shah, Viral, Jacob, Daniel J., Dang, Ruijun, Lamsal, Lok N., Strode, Sarah A., Steenrod, Stephen D., Boersma, K. Folkert, Eastham, Sebastian D., Fritz, Thibaud M., Thompson, Chelsea, Peischl, Jeff, Bourgeois, Ilann, Pollack, Ilana B., Nault, Benjamin A., Cohen, Ronald C., Campuzano-Jost, Pedro, Jimenez, Jose L., Andersen, Simone T., Carpenter, Lucy J., Sherwen, Tomas, Evans, Mat J. Biomass Burning, Halocarbons And Halogens, Trace Gases/Trace Species, Sulfur Compounds, Air Quality, Atmospheric Carbon Monoxide, Atmospheric Ozone, Non-methane Hydrocarbons/Volatile Organic Compounds, Fossil Fuel Burning, Industrial Emissions, Atmospheric Carbon Dioxide, Carbonaceous Aerosols, Carbon And Hydrocarbon Compounds, Nitrogen Oxides, Carbon Monoxide, Methane, Hydrogen Oxides, Hydroperoxy, Nitrate Particles, Chemical Composition, Sulfate Particles, Photolysis Rates, Actinic Flux
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