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    • SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Data Product

    Metadata Updated: March 28, 2024

    The SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Geophysical Data Record (GDR) dataset produced by the Surface Water and Ocean Topography (SWOT) mission provides atmospheric water vapor and liquid water content from the Advanced Microwave Radiometer (AMR), a Jason-class radiometer that measures sea surface brightness temperatures at three microwave frequencies (18.7, 23.8 and 34 GHz). Brightness temperatures are processed to estimate the wet troposphere content, atmospheric attenuation to backscatter, cloud liquid water, water vapor content, and wind speed coincident with each range measurement from the nadir altimeter and applied to correct for altimeter range delays caused by atmospheric effects. SWOT is a joint mission between NASA and CNES that launched on December 16, 2022 and aims to measure ocean surface topography with unprecedented resolution and accuracy, as well as map inland water bodies globally. This radiometer dataset consists of discrete measurements along two tracks located approximately 30-km to the left and right of the satellite nadir. The data were processed using the Precise Orbit Ephemeris (POE) and analyzed calibrations. The data are available with latency of < 90 days and distributed in netCDF-4 file format.

    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 March 28, 2024
    Metadata Updated Date March 28, 2024

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Thumbnail

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 28, 2024
    Metadata Updated Date March 28, 2024
    Publisher NASA/JPL/PODAAC
    Maintainer
    Identifier C2799438350-POCLOUD
    Data First Published 2022-06-28
    Language en-US
    Data Last Modified 2022-06-28
    Category SWOT, 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 Surface Water Ocean Topography (SWOT). 2023-06-01. SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Data Product. Version 2.0. SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Data Product Version 1.0. Archived by National Aeronautics and Space Administration, U.S. Government, NASA/JPL/PODAAC. https://doi.org/10.5067/SWOT-RAD-GDR-2.0.
    Creator Surface Water Ocean Topography (SWOT)
    Graphic Preview Description Thumbnail
    Graphic Preview File https://podaac.jpl.nasa.gov/Podaac/thumbnails/SWOT_L2_RAD_GDR_2.0.jpg
    Harvest Object Id 3c62ecf4-5a09-489f-b2e4-1142b9b40c40
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/SWOT-RAD-GDR-2.0
    Metadata Type geospatial
    Old Spatial -180.0 -77.6 180.0 77.6
    Program Code 026:001
    Series Name SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Data Product
    Source Datajson Identifier True
    Source Hash 5e13cab80b968d1874deb0a3c8698f2a79c9621c15cd384f7d4d0cd7b98abcfb
    Source Schema Version 1.1
    Spatial
    Temporal 2022-12-16T00:00:00Z/2024-03-27T00:00:00Z

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