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Description

This dataset provides information on greenhouse gases and human-produced air pollution, including atmospheric concentrations of carbon dioxide (CO2), methane (CH4), tropospheric ozone (O3), and black carbon (BC) aerosols, collected during airborne campaigns conducted by NASA's Atmospheric Tomography (ATom) mission. This dataset includes merged data from all instruments plus additional data such as numbered profiles and distance flown. Merged data products have been created for seven different aggregation intervals (1 second, 10 seconds, and 5 instrument-specific intervals). In the case of data obtained over longer time intervals (e.g., flask data), the merge files provide (weighted) averages to match the sampling intervals. 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.

Product Summary

Platforms
NASA DC-8
Instruments
FLUORESCENCE SPECTROSCOPY ,
GAS CHROMATOGRAPHS ,
ION CHROMATOGRAPHS ,
UCATS-GC ,
TOGA ,
DMT SP2 ,
PALMS ,
PICARRO G2401-mc CO2, CH4, CO, H2O INSTRUMENT ,
MMS ,
WAS ,
AMS ,
CIMS ,
DLH ,
CAPS ,
CAFS ,
ATHOS
Spatial Extent

N: 82.9406 S: -86.1769 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
C2367011141-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
28
Processing Level
3
Published
Updated
Science Keywords
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

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

Wofsy, S. C., Afshar, S., Allen, H. M., Apel, E. C., Asher, E. C., Barletta, B., Bent, J., Bian, H., Biggs, B. C., Blake, D. R., Blake, N., Bourgeois, I., Brock, C. A., Brune, W. H., Budney, J. W., Bui, T. P., Butler, A., Campuzano-Jost, P., Chang, C. S., … Vieznor, N. (2021). ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols, Version 2 (Version 2.0). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/1925 Date Accessed: 2026-05-17

Documents

Publications Citing This Dataset

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Title Year Author Topic
Evaluation of UKESM aerosol size and composition using ATom measurements He, Xu-Cheng, Abraham, Nathan Luke, Ding, Han, Russo, Maria R., Grosvenor, Daniel P., Ge, Yao, Wang, Xuemei, Jones, Anthony C., Campuzano-Jost, Pedro, Nault, Benjamin, Kupc, Agnieszka, Blake, Donald, Jimenez, Jose L., Williamson, Christina J., Weber, James, Archibald, Alexander T., Gordon, Hamish 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, Sea Salt, Aerosol Particle Properties, Aerosols, Aerosol Size Distribution, Black Carbon
Aerosol iodine recycling is a major control on tropospheric reactive iodine abundance Moon, Allison R., Liu, Leyang, Wang, Xuan, Chan, Yuk-Chun, Fritzmann, Alyson, Pound, Ryan, Lees, Amy, Marden, Lewis, Evans, Mat, Carpenter, Lucy J., Stutz, Jochen, Thornton, Joel A., Novak, Gordon, Rollins, Andrew, Schill, Gregory P., He, Xu-Cheng, Finkenzeller, Henning, Reza, Mago, Volkamer, Rainer, Bates, Kelvin H., Saiz-Lopez, Alfonso, Mahajan, Anoop S., Alexander, Becky 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
An assessment of a CO2 transport model simulations using Das, Chiranjit, Kunchala, Ravi Kumar, Patra, Prabir K., Chandra, Naveen, Ishijima, Kentaro, Machida, Toshinobu 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
Correction of Simulation Biases in Stratospheric Methane Concentrations Zhang, Peixuan, Zhang, Yuzhong, Liang, Ruosi 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, Methane, Nitrous Oxide
Impacts of DMS Emissions and Chemistry on E3SMv2 Simulated Cloud Droplet Kang, Litai, Marchand, Roger, Ma, PoLun, Huang, Meng, Wood, Robert, Jongebloed, Ursula, Alexander, Becky 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
Enhanced CH4 emissions from global wildfires likely due to undetected small fires Zhao, Junri, Ciais, Philippe, Chevallier, Frederic, Canadell, Josep G., van der Velde, Ivar R., Chuvieco, Emilio, Chen, Yang, Zhang, Qiang, He, Kebin, Zheng, Bo 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, Boundary Layer Winds, Air Mass/Density, Convective Clouds/Systems (Observed/Analyzed), Convection
Observational ozone datasets over the global oceans and polar regions (version 2024) Kanaya, Yugo, Sommariva, Roberto, Saiz-Lopez, Alfonso, Mazzeo, Andrea, Koenig, Theodore K., Kawana, Kaori, Johnson, James E., Colomb, Aurelie, Tulet, Pierre, Molloy, Suzie, Galbally, Ian E., Volkamer, Rainer, Mahajan, Anoop, Halfacre, John W., Shepson, Paul B., Schmale, Julia, Angot, Helene, Blomquist, Byron, Shupe, Matthew D., Helmig, Detlev, Gil, Junsu, Lee, Meehye, Coburn, Sean C., Ortega, Ivan, Chen, Gao, Lee, James, Aikin, Kenneth C., Parrish, David D., Holloway, John S., Ryerson, Thomas B., Pollack, Ilana B., Williams, Eric J., Lerner, Brian M., Weinheimer, Andrew J., Campos, Teresa, Flocke, Frank M., Spackman, J. Ryan, Bourgeois, Ilann, Peischl, Jeff, Thompson, Chelsea R., Staebler, Ralf M., Aliabadi, Amir A., Gong, Wanmin, Van Malderen, Roeland, Thompson, Anne M., Stauffer, Ryan M., Kollonige, Debra E., Gomez Martin, Juan Carlos, Fujiwara, Masatomo, Read, Katie, Rowlinson, Matthew, Sato, Keiichi, Kurokawa, Junichi, Iwamoto, Yoko, Taketani, Fumikazu, Takashima, Hisahiro, Navarro-Comas, Monica, Panagi, Marios, Schultz, Martin G. 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
A nitrate photolysis source of tropospheric HONO is incompatible with current understanding of atmospheric chemistry Rowlinson, Matthew J., Carpenter, Lucy J., Evans, Mat J., Lee, James D., Andersen, Simone T., Sherwen, Tomas, Callaghan, Anna B., Sommariva, Roberto, Bloss, William, Hou, Siqi, Crilley, Leigh R., Pfeilsticker, Klaus, Weyland, Benjamin, Ryerson, Thomas B., Veres, Patrick R., Campuzano-Jost, Pedro, Guo, Hongyu, Nault, Benjamin A., Jimenez, Jose L., Fomba, Khanneh Wadinga Visible Radiance, THERMAL INFRARED, Infrared Radiance, Atmospheric Carbon Monoxide, Carbonaceous Aerosols, Air Quality, Trace Gases/Trace Species, Non-methane Hydrocarbons/Volatile Organic Compounds, Industrial Emissions, Fossil Fuel Burning, Biomass Burning, Atmospheric Carbon Dioxide, Sulfur Compounds, Halocarbons And Halogens, Atmospheric Ozone
A reactive condensation particle counter for measuring atmospherically relevant concentrations of sulfuric acid Casalnuovo, Dominic A., Cheng, Darren, Romero-Flores, Michel, Montesinos-Castellanos, Alejandro, Jen, Coty N. 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
Global observations of acetyl peroxynitrate (PAN) in the remote troposphere Lee, Young Ro, Huey, L. Gregory, Tanner, David J., Roberts, James M., Wang, Yuhang, Wennberg, Paul O., Crounse, John D., Allen, Hannah, Apel, Eric C., Hills, Alan J., Hornbrook, Rebecca S., Elkins, James W., Hintsa, Eric, Moore, Fred, Hall, Samuel R., Ullmann, Kirk, McKain, Kathryn, Sweeney, Colm, Ryerson, Thomas B., Peischl, Jeff, Tompson, Chelsea R., Bourgeois, Ilann, Ray, Eric, Newman, Paul A., Strode, Sarah 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, Boundary Layer Winds, Air Mass/Density, Convective Clouds/Systems (Observed/Analyzed), Convection, Carbon And Hydrocarbon Compounds, Nitrogen Oxides, Carbon Monoxide, Methane, Black Carbon, Atmospheric Temperature, Atmospheric Pressure, Atmospheric Winds
Global Impacts of Marine Methanethiol Emissions and Chemistry in the Atmosphere Tashmim, Linia, Porter, William C., Bertram, Timothy H., Kilgour, Delaney B., Rollins, Andrew Atmospheric Carbon Monoxide, Carbonaceous Aerosols, Air Quality, Trace Gases/Trace Species, Non-methane Hydrocarbons/Volatile Organic Compounds, Industrial Emissions, Fossil Fuel Burning, Biomass Burning, Atmospheric Carbon Dioxide, Sulfur Compounds, Halocarbons And Halogens, Atmospheric Ozone, Sulfur Dioxide, Sulfur Oxides
Can the COVID19 Decrease in Aircraft Flights Inform us of Whether the Addition of Efficient INP to Cirrus Altitudes Cools the Climate? Penner, Joyce E., Zhu, Jialei, Garnier, Anne 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
Limited longterm photolysis of stratospheric organic aerosols with implications for CESM modeling Guan, Jian, Solomon, Susan, Murphy, Daniel M., Stone, Kane, Yu, Pengfei, Kinnison, Douglas, Schill, Gregory P., Tilmes, Simone, Lawler, Michael 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, Aerosol Particle Properties, Chemical Composition, Black Carbon, Aerosol Extinction
Widespread trace bromine and iodine in remote tropospheric non-sea-salt aerosols Schill, Gregory P., Froyd, Karl D., Murphy, Daniel M., Williamson, Christina J., Brock, Charles A., Sherwen, Tomas, Evans, Mat J., Ray, Eric A., Apel, Eric C., Hornbrook, Rebecca S., Hills, Alan J., Peischl, Jeff, Ryerson, Thomas B., Thompson, Chelsea R., Bourgeois, Ilann, Blake, Donald R., DiGangi, Joshua P., Diskin, Glenn S. 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
The Atmospheric Potential Oxygen forward Model Intercomparison Project Jin, Yuming, Stephens, Britton B., Long, Matthew C., Chandra, Naveen, Chevallier, Frederic, Hooghiem, Joram J. D., Luijkx, Ingrid T., Maksyutov, Shamil, Morgan, Eric J., Niwa, Yosuke, Patra, Prabir K., Rodenbeck, Christian, Vance, Jesse 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
Virtual Integration of Satellite and In-situ Observation Networks Russo, Maria R., Bartholomew, Sadie L., Hassell, David, Mason, Alex M., Neininger, Erica, Perman, A. James, Sproson, David A. J., Watson-Parris, Duncan, Abraham, Nathan Luke 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
Validation of formaldehyde products from three satellite retrievals (OMI SAO, OMPS-NPP SAO, and OMI BIRA) in the marine atmosphere with four seasons of ... Liao, Jin, Wolfe, Glenn M., Kotsakis, Alexander E., Nicely, Julie M., St. Clair, Jason M., Hanisco, Thomas F., Gonzalez Abad, Gonzalo, Nowlan, Caroline R., Ayazpour, Zolal, De Smedt, Isabelle, Apel, Eric C., Hornbrook, Rebecca S. Formaldehyde, 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
Toward Realistic Prognostic Modeling of the Methane Chemical Loss Mirrezaei, Mohammad Amin, Gaubert, Benjamin, Arellano, Avelino F., Fernandez, Rafael P., Ortega, Ivan, Emmons, Louisa K., Kinnison, Douglas, Roozitalab, Behrooz, McKain, Kathryn, Bruhwiler, Lori, Oh, Youmi, SaizLopez, Alfonso, Cuevas, Carlos A., Feng, Chuan, Xu, Yangyang, Brasseur, Guy P. Atmospheric Chemistry, Carbon And Hydrocarbon Compounds, Air Quality, Carbon Monoxide, Atmospheric Temperature, Surface Temperature, Atmospheric Pressure, Surface Pressure, Atmospheric Water Vapor, Water Vapor Indicators, Water Vapor, Carbon Monoxide Profiles, Biomass Burning, Halocarbons And Halogens, Trace Gases/Trace Species, Sulfur Compounds, Atmospheric Carbon Monoxide, Atmospheric Ozone, Non-methane Hydrocarbons/Volatile Organic Compounds, Fossil Fuel Burning, Industrial Emissions, Atmospheric Carbon Dioxide, Carbonaceous Aerosols
Improved atmospheric constraints on Southern Ocean CO2 exchange Jin, Yuming, Keeling, Ralph F., Stephens, Britton B., Long, Matthew C., Patra, Prabir K., Rodenbeck, Christian, Morgan, Eric J., Kort, Eric A., Sweeney, Colm 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
Improving Estimates of Dynamic Global Marine DMS and Implications for Zhao, Junri, Zhang, Yan, Bie, Shujun, Yang, GuiPeng, Bilsback, Kelsey R., Pierce, Jeffrey R., Chen, Ying 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
Nonlinear and Non-Gaussian Ensemble Assimilation of MOPITT CO Gaubert, Benjamin, Anderson, Jeffrey L., Trudeau, Michael, Smith, Nadia, McKain, Kathryn, Petron, Gabrielle, Raeder, Kevin, Arellano, Avelino F., Granier, Claire, Emmons, Louisa K., Ortega, Ivan, Hannigan, James W., Tang, Wenfu, Worden, Helen M., Ziskin, Daniel, Edwards, David P. 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
Measurement report: Vanadium-containing ship exhaust particles detected in and above the marine boundary layer in the remote atmosphere Abou-Ghanem, Maya, Murphy, Daniel M., Schill, Gregory P., Lawler, Michael J., Froyd, Karl D. 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
Measurements and Modeling of the Interhemispheric Differences of Atmospheric Chlorinated Very Short-Lived Substances Roozitalab, Behrooz, Emmons, Louisa K., Hornbrook, Rebecca S., Kinnison, Douglas E., Fernandez, Rafael P., Li, Qinyi, SaizLopez, Alfonso, Hossaini, Ryan, Cuevas, Carlos A., Hills, Alan J., Montzka, Stephen A., Blake, Donald R., Brune, William H., Veres, Patrick R., Apel, Eric C. 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
Observational and model evidence for a prominent stratospheric influence on variability in tropospheric nitrous oxide Nevison, Cynthia D., Liang, Qing, Newman, Paul A., Stephens, Britton B., Dutton, Geoff, Lan, Xin, Commane, Roisin, Gonzalez, Yenny, Kort, Eric Atmospheric Carbon Monoxide, Carbonaceous Aerosols, Air Quality, Trace Gases/Trace Species, Non-methane Hydrocarbons/Volatile Organic Compounds, Industrial Emissions, Fossil Fuel Burning, Biomass Burning, Atmospheric Carbon Dioxide, Sulfur Compounds, Halocarbons And Halogens, Atmospheric Ozone
Opinion: Beyond global meansnovel space-based approaches to indirectly constrain the concentrations of and trends and variations in the tropospheric hydroxyl ... Duncan, Bryan N., Anderson, Daniel C., Fiore, Arlene M., Joiner, Joanna, Krotkov, Nickolay A., Li, Can, Millet, Dylan B., Nicely, Julie M., Oman, Luke D., St. Clair, Jason M., Shutter, Joshua D., Souri, Amir H., Strode, Sarah A., Weir, Brad, Wolfe, Glenn M., Worden, Helen M., Zhu, Qindan Solar Irradiance, Volatile Organic Compounds, Formaldehyde, 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
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