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    • ATom: Comprehensive Aerosol Properties, 2016-2018, Version 2

    Metadata Updated: December 6, 2023

    This dataset contains comprehensive measurements of aerosol microphysical, chemical, and optical properties derived for both dry and ambient conditions from in situ measurements made during the four ATom campaigns. The dataset includes composition-resolved size distributions the integrated mass of sulfate, organics, nitrate, sea salt, dust, black carbon, and other compounds in coarse and fine fractions; extinction and absorption coefficients from each species at both dry and ambient conditions; asymmetry parameters; Angstrom exponents; and fitted lognormal functions to describe the size distribution. Optical parameters are calculated for 10 wavelengths from the near UV to the near IR, and size distributions range from 3 nm to 50 um in diameter. One file contains these data at 1-minute time intervals. Another file contains a subset of these data averaged into 1-km vertical bins for each vertical profile the aircraft made, as well as composition-resolved integrated aerosol optical depth derived from each profile. The concentration of cloud condensation nuclei is calculated for 5 supersaturations.

    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 June 27, 2023
    Metadata Updated Date December 6, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Aerosol extinction across ATom campaigns. Sea salt is shown in (g) and (h), dust in (i) and (j), and water in (k) and (l). Source: Brock et al., 2021

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 27, 2023
    Metadata Updated Date December 6, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2698465642-ORNL_CLOUD
    Data First Published 2023-08-18
    Language en-US
    Data Last Modified 2023-08-20
    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 Brock, C.A., K.D. Froyd, M. Dollner, C.J. Williamson, G.P. Schill, D.M. Murphy, N.L. Wagner, A. Kupc, J.L. Jimenez, P. Campuzano-Jost, B.A. Nault, J.C. Schroder, D.A. Day, D.J. Price, B.B. Weinzierl, J.P. Schwarz, J.M. Katich, S. Wang, L.H. Zeng, R. Webb, J.E. Dibb, E. Scheuer, G.S. Diskin, J.P. DiGangi, T.P. Bui, J.M. Dean-Day, C.R. Thompson, J. Peischl, T.B. Ryerson, I. Bourgeois, B.C. Daube, R. Commane, and S.C. Wofsy. 2022. ATom: Comprehensive Aerosol Properties, 2016-2018, Version 2. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2111
    Graphic Preview Description Aerosol extinction across ATom campaigns. Sea salt is shown in (g) and (h), dust in (i) and (j), and water in (k) and (l). Source: Brock et al., 2021
    Graphic Preview File https://daac.ornl.gov/ATOM/guides/ATom_Aerosol_Properties_V2_Fig1.png
    Harvest Object Id 246559d8-e0df-4fa6-81f5-be5e43900e05
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/2111
    Metadata Type geospatial
    Old Spatial -180.0 -86.5 180.0 82.93
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 5d565a7956b38b9e097dfe4e9cda8c779dda19bbb127a2079f23c487967beba1
    Source Schema Version 1.1
    Spatial
    Temporal 2016-07-29T02:42:40Z/2018-05-22T12:01:38Z

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