Surface Currents Observations - Pacific Islands Ocean Observing System
Original (non-English) name
Acronym
Surface Currents Observations - PacIOOS
Citation
Suggested data citation: U.S. Integrated Ocean Observing System (IOOS) High Frequency Radar Network (HFRNet), P. Flament, and Pacific Islands Ocean Observing System (PacIOOS). 2012, updated 2020. Near-Real Time Surface Ocean Velocity, Hawaii, 1 km Resolution. [Indicate temporal subset used.] Distributed by the Coastal Observing Research and Development Center (CORDC). http://pacioos.org/metadata/HFRADAR_USHI_hourly_RTV_1km.html. Accessed [date].
Abstract
Hourly data of the direction and speed of ocean surface currents are provided at a 1-km (0.6-mile) resolution for the leeward (west) and south shores of the island of Oʻahu in the State of Hawaiʻi. These velocity estimates are representative of the upper 0.3-2.5 m (1-8 ft) of the ocean. Shore-based high-frequency radios (HFR) antenna arrays consist of a low-power transmitter sending radio waves and receivers that listen for the signal reflected back from the ocean. The return signal is Doppler-shifted by waves, currents, and wind. Near real-time maps of surface currents are available across the coastal United States as part of the National HFRNet where hourly radial data are processed by unweighted least-squares onto a 1-km resolution grid. HFR data are configured and maintained for the Oʻahu region by Dr. Pierre Flament and lab of the Department of Oceanography in the School of Ocean and Earth Science and Technology (SOEST) at the University of Hawaiʻi at Mānoa.