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    • SWOT Level 2 Nadir Altimeter Geophysical Data Record with Waveforms - SSHA

    Metadata Updated: March 28, 2024

    The SWOT Level 2 Nadir Altimeter Geophysical Data Record (GDR) with Waveforms dataset produced by the Surface Water and Ocean Topography (SWOT) mission provides sea surface height, significant wave height and wind speed measurements from the Poseidon-3C nadir altimeter, a Jason-class dual frequency (Ku/C) altimeter. SWOT is a joint mission between NASA and CNES that launched on December 16, 2022. It aims to measure ocean surface topography with unprecedented resolution and accuracy, as well as map inland water bodies globally. The GDR dataset consists of discrete measurements for each half orbit along the ground track with sampling resolutions of approximately 6-km and 300-m at 1Hz and 20Hz, respectively. The data were processed using restituted auxiliary data and the Precise Orbit Ephemeris (POE). The data are available with latency of < 90 days and distributed in netCDF-4 file format. This collection is a sub-collection of its parent: https://podaac.jpl.nasa.gov/dataset/SWOT_L2_NALT_GDR_2.0

    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 C2799465522-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 Nadir Altimeter Geophysical Data Record with Waveforms - SSHA. Version 2.0. SWOT Level 2 Nadir Altimeter Geophysical Data Record with Waveforms - SSHA. Archived by National Aeronautics and Space Administration, U.S. Government, NASA/JPL/PODAAC. https://doi.org/10.5067/SWOT-NALT-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_NALT_GDR_2.0.jpg
    Harvest Object Id e04e04fe-41d7-4d6a-a374-9b93b263b502
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/SWOT-NALT-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 Nadir Altimeter Geophysical Data Record with Waveforms - SSHA
    Source Datajson Identifier True
    Source Hash 6418f9b8ad65e33b7d1e915c4a9927c3ae6c0e7811096f8658c952e1662891fe
    Source Schema Version 1.1
    Spatial
    Temporal 2022-12-16T00:00:00Z/2024-03-27T00:00:00Z

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