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

Metadata Date

2026-05-06

Metadata Tags

GCMD Keywords

CF Standard Names

Online Access

OPeNDAP (DAP Client Access)

These data are available for access with an OPeNDAP client

ERDDAP (DAP Client Access)

These data are available for access with an ERDDAP client
Distribution Formats
  • OPeNDAP (Version: DAP/2.0 )
Distributor Cal Poly Humboldt
Point of Contact Cal Poly Humboldt
None
Background Information (Background information from the source)
Originator Cal Poly Humboldt
Background Information (Background information from the source)
contributor Yui Takeshita
webmaster@mbari.org,,,None,feedback@axiomdatascience.com
Dataset Point of Contact Data Engineer
Axiom Data Science
907-555-5555
dataservices+cencoos-erddap@axiomdatascience.com
General Documentation
Associated Documentation Cal Poly Humboldt
Date(s) creation: 2026-05-06
creation: 2026-05-06
creation: 2026-05-06
Use Limitations The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, 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.
Time Period 2025-09-16T23:06:25Z to 2025-10-31T17:13:51Z
Spatial Bounding Box Coordinates N: 41.043° S: 41.043° E: -124.268° W: -124.268°
Theme keywords GCMD Science Keywords
  • Earth Science > Oceans > Salinity/Density > Salinity
  • Earth Science > Oceans > Ocean Chemistry > pH
  • Earth Science > Oceans > Ocean Chemistry > Oxygen
  • Earth Science > Oceans > Ocean Chemistry > Dissolved Gases
  • Earth Science > Oceans > Ocean Chemistry > Chlorophyll

CF Standard Name Table v72
  • time
  • latitude
  • longitude
  • altitude
  • mass_concentration_of_chlorophyll_a_in_sea_water
  • aggregate_quality_flag
  • quality_flag
  • mass_concentration_of_oxygen_in_sea_water
  • aggregate_quality_flag
  • quality_flag
  • sea_water_practical_salinity
  • aggregate_quality_flag
  • quality_flag
  • sea_water_sigma_t
  • aggregate_quality_flag
  • quality_flag
  • sea_water_temperature
  • aggregate_quality_flag
  • quality_flag
  • sea_water_temperature
  • aggregate_quality_flag
  • quality_flag
  • sea_water_ph_reported_on_total_scale
  • aggregate_quality_flag
  • quality_flag
Project keywords Uncategorized
  • Cal Poly Humboldt
Use Constraints The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, 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.
Lineage Statement Downloaded from Central & Northern California Ocean Observing System (CeNCOOS) at
Platforms
platform profiling_buoy
platform_name THOON TH02 WireWalker
platform_vocabulary http://mmisw.org/ont/ioos/platform
Ingestion Attributes
Instrument Attributes
Attribution Information
contributor_email webmaster@mbari.org,,,None,feedback@axiomdatascience.com
contributor_name Yui Takeshita
contributor_url http://www.mbari.org/,https://caseagrant.ucsd.edu/,https://opc.ca.gov/,https://www.fisheries.noaa.gov/,https://www.axiomdatascience.com
creator_country USA
creator_sector academic
publisher_country USA
infoUrl https://sensors.ioos.us/#metadata/138079/station
CF related
standard_name_vocabulary CF Standard Name Table v72