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    • Trinidad Head Ocean Observing Node WireWalker

    Metadata Updated: February 27, 2026

    ”The Trinidad Head Ocean Observing Node (THOON) is designed to measure ocean conditions in shelf waters off northern California, with a focus on measuring variability in ocean acidification and hypoxia (OAH) in the context of physical and biological dynamics. THOON was established and continues to be supported with funding from California's Ocean Protection Council and California Sea Grant (CA Prop 68). THOON is deployed seasonally (spring to fall) due west of Trinidad Head in about 75 m of water at Station TH02 along the Trinidad Head Line. The profiling mooring is a wave-powered WireWalker equipped with an RBR sensor package to profile temperature, salinity, chlorophyll, and dissolved oxygen throughout the water column at high temporal resolution (roughly every 8 minutes) and to transmit the data in near-real-time to shore via cellular communications. To measure pH throughout the water column, an experimental ISFET-based pH sensor was integrated into the sensor package, building on recent progress towards configuring the sensor for rapid profiling applications.”

    Access & Use Information

    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 Date February 2, 2026
    Metadata Created Date December 26, 2025
    Metadata Updated Date February 27, 2026
    Reference Date(s) February 2, 2026 (creation)
    Frequency Of Update

    Metadata Source

    Harvested from ioos

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 2, 2026
    Metadata Created Date December 26, 2025
    Metadata Updated Date February 27, 2026
    Reference Date(s) February 2, 2026 (creation)
    Responsible Party Cal Poly Humboldt (Point of Contact)
    Contact Email
    Guid thoon-th02-wirewalker
    Access Constraints
    Bbox East Long -124.268
    Bbox North Lat 41.043
    Bbox South Lat 41.043
    Bbox West Long -124.268
    Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
    Frequency Of Update
    Harvest Object Id 338ddb5b-9075-4466-bff8-6fa2cd71f704
    Harvest Source Id 54e15a6e-6dde-4c9c-a8f0-345cc0dfccfb
    Harvest Source Title ioos
    Licence
    Lineage Downloaded from Central & Northern California Ocean Observing System (CeNCOOS) at
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Point", "coordinates": [-124.268, 41.043]}
    Progress
    Spatial Data Service Type ERDDAP tabledap
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2025-09-16T23:06:25Z
    Temporal Extent End 2025-10-31T17:13:51Z

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