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    • ACT-America: CPL-derived Atmospheric Boundary Layer Top Height, Eastern US, 2016-2018

    Metadata Updated: December 7, 2023

    This dataset consists of the atmospheric boundary layer (ABL) top heights and the altitudes of the two additional aerosol layers (in km above mean sea level) derived from Cloud Physics Lidar (CPL) measurements using the Haar wavelet transform method. The CPL instrument was deployed onboard NASA's C-130 aircraft to obtain aerosol backscatter profiles during four ACT-America field campaigns (Summer 2016, Winter 2017, Fall 2017, and Spring 2018). CPL is a backscatter lidar designed to operate simultaneously at three wavelengths. The profiles were collected at 4-second temporal and 30 m vertical resolutions. The time resolution of the provided CPL-derived ABL top heights and other aerosol layers are 8 seconds.

    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 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Top panel: As annotated during expert review, showing time-height cross-section of aerosol backscatter profiles measured using CPL onboard C-130 aircraft on 2016-07-26 during a frontal crossing research flight over the Mid-Atlantic region along with the wavelet-derived ABL top (black solid-circles) height overlaid. Blue to red color bar scale represents low to high normalized aerosol backscatter signal (in a.u.). Middle: Secondary aerosol layers overlaid on the top panel. Bottom: Final attributed ABL top heights. Temporal resolution of the ABL top heights and other aerosol layers is 8 seconds.

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date May 30, 2023
    Metadata Updated Date December 7, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2677226029-ORNL_CLOUD
    Data First Published 2021-11-23
    Language en-US
    Data Last Modified 2023-06-12
    Category ACT-America, 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 Pal, S., K.J. Davis, R.M. Pauly, M.J. McGill, L.J. Campbell, K. Hoffman, A.M. Alejandro, M. Rench, and H. Haas. 2021. ACT-America: CPL-derived Atmospheric Boundary Layer Top Height, Eastern US, 2016-2018. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1825
    Graphic Preview Description Top panel: As annotated during expert review, showing time-height cross-section of aerosol backscatter profiles measured using CPL onboard C-130 aircraft on 2016-07-26 during a frontal crossing research flight over the Mid-Atlantic region along with the wavelet-derived ABL top (black solid-circles) height overlaid. Blue to red color bar scale represents low to high normalized aerosol backscatter signal (in a.u.). Middle: Secondary aerosol layers overlaid on the top panel. Bottom: Final attributed ABL top heights. Temporal resolution of the ABL top heights and other aerosol layers is 8 seconds.
    Graphic Preview File https://daac.ornl.gov/ACTAMERICA/guides/CPL_ABL_Top_Height_Fig1.png
    Harvest Object Id 60355106-a208-47df-bee1-47fe475aa163
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1825
    Metadata Type geospatial
    Old Spatial -106.49 27.25 -64.0 50.0
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 5169430e1ddd9566670ee053090fc03495dcf61dd1bcda5546ba39d21b5c632f
    Source Schema Version 1.1
    Spatial
    Temporal 2016-07-18T00:00:00Z/2018-05-20T23:59:00Z

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