Nearshore Sensor Observations : Archive : Pōkaʻī Bay Site 3, Oʻahu
This site has been decommissioned and is no longer collecting new data.
NOTE: Click on the plot below for data at a specific time.
NOTE: This instrument does not report in real-time. New data are retrieved periodically.
start date: : temperature: wave height: wind: rain: currents: site:
Disclaimer: Near real-time data have not been quality controlled.
Disclaimer: Data are released in compliance with real-time quality control standards.
Disclaimer: Real-time data are provided as raw and unaltered. Results of quality control checks are provided within the data set.
This nearshore sensor (nss_cwb_005_003) operated for a month between August 9 and September 11, 2024. It was located within Pōkaʻī Bay on the Waiʻanae coast of the Leeward (West) Shore of Oʻahu in the State of Hawaiʻi. One of three nearshore sensors deployed as part of a monitoring study, Site 3 was located in the northern part of the bay, nearest to Waiʻanae Small Boat Harbor and the mouth of the Kaupuni Stream, about 275 m (900 ft) from shore. The sensor package was mounted to the sea floor at approximately 4.2 meters depth. Data were collected every 4 minutes.
Photo of the instrument site. Credit: PacIOOS/Shaun Wriston.
These data were collected by the University of Hawaiʻi at Mānoa Department of Oceanography for the State of Hawaiʻi Department of Health Clean Water Branch (CWB). PacIOOS maintained the nearshore sensor under the supervision of Dr. Margaret McManus and lab, and enables easy access to the data. The CWB used these data to assess water quality in the bay to determine whether state water quality standards are being met and to understand the persistence of pollutants under varying conditions. More information about the findings of their study can be found in the following report:
Related data report: McManus, M.A., M.M. Iwamoto, C.M. Comfort, P.E.J. Felicijan, and S. Wriston. “Circulation Study to Characterize the Residence Time and Environmental Properties of Coastal Waters in Pōkaʻī Bay, Waiʻanae, Oʻahu,” Pacific Islands Ocean Observing System (PacIOOS), Honolulu, HI, USA, May 30, 2025. Available: http://pacioos.orgu/wp-content/uploads/2025/07/Pokai_Bay_DOH_data_report_2025.pdf.
See also:
PacIOOS also provides the nearshore sensor data for Pōkaʻī Bay Site 1 and Pōkaʻī Bay Site 2 of the study.
