Trinidad Head Ocean Observing Node WireWalker

”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.”

Data and resources

  • ERDDAP's version of the OPeNDAP .html web page for this dataset. Specify a subset of the dataset and download the data via OPeNDAP or in many different file…
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  • Background information from the source
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  • ERDDAP's tabledap service (a flavor of OPeNDAP) for tabular (sequence) data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for…
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  • Background information from the source
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  • An OPeNDAP service for tabular (sequence) data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes.
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Additional information

Temporal extent2025-09-16 – 2025-10-31
Date (creation)2026-11-04
StatusonGoing
Update frequencyasNeeded
Metadata languageen
LicenseThese data may be used and redistributed for free but they are not intended for legal use since they may contain inaccuracies. For use for publications please reference the regional ocean observing system and/or NOAA. Neither the data provider, regional association, NOAA, nor the United States Government, nor any of their employees or contractors makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness of this information.
Source metadataISO 19115 XML
Last updated2026-11-04
Created2026-11-04
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