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    • ATom: Black Carbon Mass Mixing Ratios from ATom-1 Flights

    Metadata Updated: December 6, 2023

    This dataset provides black carbon (BC) mass mixing ratios (in units of ng BC / kg air) measured during NASA's Atmospheric Tomography (ATom)-1 flight campaign during July and August 2016. The BC-core masses of BC-containing aerosol particles were measured using a Single Particle Soot Photometer (SP2). Conversion to mass mixing ratio (MMR) is achieved by monitoring sample flow. Influences in air mass composition were determined using the Particle Analysis by Laser Mass Spectrometry (PALMS) instruments. Also included here are data from the Cloud, Aerosol and Precipitation Spectrometer (CAPS) instrument which are used to identify measurements taken while in clouds. Finally, the associated latitude, longitude, altitude, and the timestamp of each measurement are included. All data are at ten seconds resolution. ATom-1 flights originated from the Armstrong Flight Research Center in Palmdale, California, fly north to the western Arctic, south to the South Pacific, east to the Atlantic, north to Greenland, and return to California across central North America.

    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

    Other Data Resources

    Graphic Preview

    Figure 1: Left: Flight tracks (colored line) of the NASA DC-8 during the ATom-1 deployment. Right: Altitude vs latitude for the Pacific (top) and Atlantic (bottom) basins. Color in both figures represents black carbon mass-mixing ratio in units of ng rBC/kg of air.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date May 30, 2023
    Metadata Updated Date December 6, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2675840774-ORNL_CLOUD
    Data First Published 2018-09-18
    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 Katich, J.M., J.P. Schwarz, K. Froyd, B. Weinzierl, M. Dollner, T.P. Bui, C.S. Chang, and J.M. Dean-Day. 2018. ATom: Black Carbon Mass Mixing Ratios from ATom-1 Flights. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1618
    Graphic Preview Description Figure 1: Left: Flight tracks (colored line) of the NASA DC-8 during the ATom-1 deployment. Right: Altitude vs latitude for the Pacific (top) and Atlantic (bottom) basins. Color in both figures represents black carbon mass-mixing ratio in units of ng rBC/kg of air.
    Graphic Preview File https://daac.ornl.gov/ATOM/guides/ATom_Carbon_Aerosol_Loadings_Fig1.png
    Harvest Object Id 13661c4c-2a81-409f-a4f5-2486d9e98468
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1618
    Metadata Type geospatial
    Old Spatial -180.0 -65.33 178.99 80.0
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 7e47ccc48cc42adb986f01fe80f07e86cfcb187ea3d1df30d6663f93f5ae0e87
    Source Schema Version 1.1
    Spatial
    Temporal 2016-07-29T00:00:00Z/2016-08-23T23:59:59Z

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