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    • GPS Radio Occultation Boundary Layer Depth Annual L3 V2 (GPSROZPBLA) at GES DISC

    Metadata Updated: December 7, 2023

    This dataset provides an annual average climatology of planetary boundary layer (PBL) height derived from COSMIC/FORMOSAT-3, TerraSAR-X, KOMPSAT-5, and PAZ Global Positioning System (GPS) radio occultation (RO) measurements. The COSMIC/FORMOSAT-3 mission consists of a six-satellite constellation launched in 2006. Each satellite carries an Integrated GPS Occultation Receiver (IGOR) GPS receiver and is equipped with fore and aft looking antenna to track both setting and rising occultations. The constellation provides globally distributed measurements across different local times. The instrument tracks the L-band microwave signal broadcast by a GPS satellite in a limb-viewing geometry. The IGOR receivers are capable of tracking the GPS signals in open loop through the middle to lower troposphere, which is essential for obtaining data with high quality for PBL height estimation, especially at low latitudes. The refractivity profiles form the basis for this PBL height product. For each occultation, the PBL height is calculated as the height where the vertical gradient of the refractivity (dN/dz) is minimum. This algorithm is designed to locate the height where a large vertical change in refractivity occurs, corresponding to the transition from the free troposphere to the PBL. More details can be found in Ao et al. (2012). This is the latest version of this collection which supercedes previous versions.

    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

    References

    https://doi.org/10.1029/2012JD017598
    https://doi.org/10.1016/j.rse.2022.113037

    Dates

    Metadata Created Date December 1, 2022
    Metadata Updated Date December 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Graphic Preview

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 7, 2023
    Publisher NASA/GSFC/SED/ESD/GCDC/GESDISC
    Maintainer
    Identifier C2226544227-GES_DISC
    Data First Published 2018-07-02
    Language en-US
    Data Last Modified 2018-07-02
    Category MEaSUREs, 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 Chi Ao, Peter Kalmus, Matthew Lebsock, Joao Teixeira. 2022-03-04. GPSROZPBLA. Version 2. GPS Radio Occultation Boundary Layer Depth Annual L3. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). https://doi.org/10.5067/XKO8DCSRTPUZ. https://disc.gsfc.nasa.gov/datacollection/GPSROZPBLA_2.html.
    Creator Chi Ao, Peter Kalmus, Matthew Lebsock, Joao Teixeira
    Graphic Preview File https://docserver.gesdisc.eosdis.nasa.gov/public/project/MEaSUREs/BLH/Images/GPSROZPBLA_2.png
    Harvest Object Id 70b2d8ff-137d-4f19-a681-b2f10a51a2ba
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/XKO8DCSRTPUZ
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Related Documents https://doi.org/10.1029/2012JD017598, https://doi.org/10.1016/j.rse.2022.113037
    Release Place Greenbelt, MD, USA
    Series Name GPSROZPBLA
    Source Datajson Identifier True
    Source Hash 15e028d3ae0967189d59720569a46933af7fde1b36934b22c87ba5de222875c8
    Source Schema Version 1.1
    Spatial
    Temporal 2006-06-01T00:00:00Z/2019-12-31T23:59:59Z

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