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    • SWOT Level 2 Nadir Altimeter Geophysical Data Record with Waveforms - SSHA, Version 1.0

    Metadata Updated: February 5, 2026

    Nadir Altimeter Geophysical Data Record (GDR) products similar to those from ongoing nadir altimeter missions such as Jason-3. Provide sea surface height, significant wave height and wind speed measurements from the nadir altimeter. GDR using restituted auxiliary data Uses the Precise Orbit Ephemeris (POE). Available with latency of < 90 days. Discrete measurements at nadir for each half orbit, along the ground track. Available 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 May 13, 2025
    Metadata Updated Date February 5, 2026

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date May 13, 2025
    Metadata Updated Date February 5, 2026
    Publisher NASA/JPL;NASA/JPL/PODAAC
    Maintainer
    Identifier 10.5067/SWOT-NALT-GDR-1.0
    Data Last Modified 2026-02-03
    Category Earth Science
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 04eeb830-6e31-40f9-a819-87f56b6ec7ec
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://podaac.jpl.nasa.gov/CitingPODAAC
    Old Spatial "CARTESIAN",{"WestBoundingCoordinate":-180.0,"NorthBoundingCoordinate":77.6,"EastBoundingCoordinate":180.0,"SouthBoundingCoordinate":-77.6}
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash 8ef8d50d1852c0881c9cd37dfbc8fb50eb84d274ecff09f506499fe93739b3fb
    Source Schema Version 1.1
    Spatial
    Temporal 2022-12-16/2022-12-16

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