Sustained observations of mesoscale and sub-mesoscale surface circulation off the U.S. West Coast

Sung Yong Kim*, Eric J. Terrill, Bruce D. Cornuelle, Mark A. Moline, John Largier, Burton Jones, Jeffrey D. Paduan, Greg Crawford, Libe Washburn, Newell Garfield, P. Michael Kosro

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

With collaborated research efforts in the regional coastal ocean observing systems (SCCOOS, CeNCOOS, and NANOOS) off the U.S. West Coast (USWC), the nearly completed high-frequency radar (HFR) network provides an unprecedented capability to monitor and understand coastal ocean dynamics and phenomenology through hourly surface current measurements at up to 1 km resolution. The dynamics of the surface currents off the USWC are governed by tides, winds, Coriolis force, low-frequency pressure gradients (less than 0.4 cycles per day (cpd)), and nonlinear interactions of those forces. The HFR surface currents resolve coastal surface ocean variability continuously across scales from sub-mesoscale to mesoscale (O(1) km to O(1000) km). Their spectra decay with k-2 at high wave number (less than 100 km) in agreement with theoretical sub-mesoscale spectra below the observational limits of present-day satellite altimeters.

Original languageEnglish (US)
Title of host publicationProgram Book - OCEANS 2012 MTS/IEEE Yeosu
Subtitle of host publicationThe Living Ocean and Coast - Diversity of Resources and Sustainable Activities
DOIs
StatePublished - Oct 1 2012
EventOCEANS 2012 MTS/IEEE Yeosu Conference: The Living Ocean and Coast - Diversity of Resources and Sustainable Activities - Yeosu, Korea, Republic of
Duration: May 21 2012May 24 2012

Publication series

NameProgram Book - OCEANS 2012 MTS/IEEE Yeosu: The Living Ocean and Coast - Diversity of Resources and Sustainable Activities

Other

OtherOCEANS 2012 MTS/IEEE Yeosu Conference: The Living Ocean and Coast - Diversity of Resources and Sustainable Activities
CountryKorea, Republic of
CityYeosu
Period05/21/1205/24/12

ASJC Scopus subject areas

  • Ocean Engineering

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