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    • SWOT Postlaunch Oceanography Field Campaign Shipboard CTD and Water Sample Data

    Metadata Updated: January 15, 2026

    The SWOT Postlaunch Oceanography Field Campaign Shipboard CTD and Water Sample Data collection provides the conductivity, temperature and depth (CTD) measurements and water sample measurements from shipboard instruments deployed by the Surface Water and Ocean Topography (SWOT) postlaunch field campaign. The SWOT satellite mission launched in late 2022 and underwent a calibration and validation (cal/val) phase in 2023. As part of cal/val, an array of oceanographic instruments was deployed at a site 300 km offshore of California. Shipboard data come from four research cruises on the Bold Horizon and the Sally Ride, with different time spans ranging from February 23, 2023 to November 2, 2024. These measurements were used to adjust the calibrations of mooring CTD sensors (deployed in the same field campaign) to a common and well-calibrated reference, to enable the calculation of steric height for SWOT cal/val analyses. Most, but not all of the CTD casts were collected at the actual mooring sites. For some casts, mooring instruments were attached temporarily to the ship CTD system for cross-calibration, and these may have been done anywhere en route to/from the mooring sites. Due to the varying depth ratings of the mooring instruments thus attached, not all CTD casts covered the full water column. The resulting CTD data collection is an irregular pattern of sampling locations and depths, which includes a number of full-depth casts in the vicinity of the moorings.

    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 July 3, 2025
    Metadata Updated Date January 15, 2026

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date July 3, 2025
    Metadata Updated Date January 15, 2026
    Publisher NASA/JPL/PODAAC
    Maintainer
    Identifier 10.5067/SWTPO-SPBD1
    Data Last Modified 2026-01-13
    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 56264d07-a878-4bd0-90da-f4282376770d
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://search.earthdata.nasa.gov/search/granules?p=C3377359968-POCLOUD
    Old Spatial {"WestBoundingCoordinate":-125.4,"EastBoundingCoordinate":-118.24,"SouthBoundingCoordinate":33.04,"NorthBoundingCoordinate":36.21},"CARTESIAN"
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash c688ed4e9772d53d4b1a6056b4a81895fac2d6ed2d4350c8707d273427342751
    Source Schema Version 1.1
    Spatial
    Temporal 2023-02-23/2023-02-23

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