Poleward propagating subinertial alongshore surface currents off the U.S. West Coast

Handle URI:
http://hdl.handle.net/10754/552201
Title:
Poleward propagating subinertial alongshore surface currents off the U.S. West Coast
Authors:
Kim, Sung Yong; Cornuelle, Bruce D.; Terrill, Eric J.; Jones, Burton ( 0000-0002-9599-1593 ) ; Washburn, Libe; Moline, Mark A.; Paduan, Jeffrey D.; Garfield, Newell; Largier, John L.; Crawford, Greg; Michael Kosro, P.
Abstract:
The network comprising 61 high-frequency radar systems along the U.S. West Coast (USWC) provides a unique, high resolution, and broad scale view of ocean surface circulation. Subinertial alongshore surface currents show poleward propagating signals with phase speeds of O(10) and O(100-300) km d -1 that are consistent with historical in situ observations off the USWC and that can be possibly interpreted as coastally trapped waves (CTWs). The propagating signals in the slow mode are partly observed in southern California, which may result from scattering and reflection of higher-mode CTWs due to curvature of shoreline and bathymetry near Point Conception, California. On the other hand, considering the order of the phase speed in the slow mode, the poleward propagating signals may be attributed to alongshore advection or pressure-driven flows. A statistical regression of coastal winds at National Data Buoy Center buoys on the observed surface currents partitions locally and remotely wind-forced components, isolates footprints of the equatorward propagating storm events in winter off the USWC, and shows the poleward propagating signals year round. Key Points A unique resource to examine synoptic-scale alongshore variability Isolation of equatorward wind events in winter using a statistical model Poleward propagating surface signals year-round © 2013. American Geophysical Union. All Rights Reserved.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Poleward propagating subinertial alongshore surface currents off the U.S. West Coast 2013, 118 (12):6791 Journal of Geophysical Research: Oceans
Journal:
Journal of Geophysical Research: Oceans
Issue Date:
Dec-2013
DOI:
10.1002/jgrc.20400
Type:
Article
ISSN:
21699275
Additional Links:
http://doi.wiley.com/10.1002/jgrc.20400
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorKim, Sung Yongen
dc.contributor.authorCornuelle, Bruce D.en
dc.contributor.authorTerrill, Eric J.en
dc.contributor.authorJones, Burtonen
dc.contributor.authorWashburn, Libeen
dc.contributor.authorMoline, Mark A.en
dc.contributor.authorPaduan, Jeffrey D.en
dc.contributor.authorGarfield, Newellen
dc.contributor.authorLargier, John L.en
dc.contributor.authorCrawford, Gregen
dc.contributor.authorMichael Kosro, P.en
dc.date.accessioned2015-05-04T16:40:29Zen
dc.date.available2015-05-04T16:40:29Zen
dc.date.issued2013-12en
dc.identifier.citationPoleward propagating subinertial alongshore surface currents off the U.S. West Coast 2013, 118 (12):6791 Journal of Geophysical Research: Oceansen
dc.identifier.issn21699275en
dc.identifier.doi10.1002/jgrc.20400en
dc.identifier.urihttp://hdl.handle.net/10754/552201en
dc.description.abstractThe network comprising 61 high-frequency radar systems along the U.S. West Coast (USWC) provides a unique, high resolution, and broad scale view of ocean surface circulation. Subinertial alongshore surface currents show poleward propagating signals with phase speeds of O(10) and O(100-300) km d -1 that are consistent with historical in situ observations off the USWC and that can be possibly interpreted as coastally trapped waves (CTWs). The propagating signals in the slow mode are partly observed in southern California, which may result from scattering and reflection of higher-mode CTWs due to curvature of shoreline and bathymetry near Point Conception, California. On the other hand, considering the order of the phase speed in the slow mode, the poleward propagating signals may be attributed to alongshore advection or pressure-driven flows. A statistical regression of coastal winds at National Data Buoy Center buoys on the observed surface currents partitions locally and remotely wind-forced components, isolates footprints of the equatorward propagating storm events in winter off the USWC, and shows the poleward propagating signals year round. Key Points A unique resource to examine synoptic-scale alongshore variability Isolation of equatorward wind events in winter using a statistical model Poleward propagating surface signals year-round © 2013. American Geophysical Union. All Rights Reserved.en
dc.relation.urlhttp://doi.wiley.com/10.1002/jgrc.20400en
dc.rightsArchived with thanks to Journal of Geophysical Research: Oceansen
dc.titlePoleward propagating subinertial alongshore surface currents off the U.S. West Coasten
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalJournal of Geophysical Research: Oceansen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDivision of Ocean Systems Engineering; School of Mechanical, Aerospace and Systems Engineering, Korea Advanced Institute of Science and Technology; Daejeon Republic of Koreaen
dc.contributor.institutionClimate, Atmospheric Science and Physical Oceanography, Scripps Institution of Oceanography; La Jolla California USAen
dc.contributor.institutionMarine Physical Laboratory; Scripps Institution of Oceanography; La Jolla California USAen
dc.contributor.institutionDepartment of Geography/ICESS; University of California, Santa Barbara; Santa Barbara California USAen
dc.contributor.institutionSchool of Marine Science and Policy; College of Earth, Ocean, and Environment, University of Delaware; Newark Delaware USAen
dc.contributor.institutionDepartment of Oceanography; Graduate School of Engineering and Applied Sciences, Naval Postgraduate School; Monterey California USAen
dc.contributor.institutionGeosciences Department and Romberg Tiburon Center for Environmental Studies; San Francisco State University; Tiburon California USAen
dc.contributor.institutionBodega Marine Laboratory; University of California; Davis Bodega Bay, California USAen
dc.contributor.institutionFaculty of Science and Technology; Vancouver Island University; Nanaimo British Columbia Canadaen
dc.contributor.institutionCollege of Earth, Ocean, and Atmospheric Sciences, Oregon State University; Corvallis Oregon USAen
kaust.authorJones, Burtonen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.