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dc.contributor.advisorHerbers, Thomas H.C.
dc.contributor.authorCushanick, Matthew Stephan
dc.date.accessioned2012-03-14T17:34:21Z
dc.date.available2012-03-14T17:34:21Z
dc.date.issued2005-06
dc.identifier.urihttp://hdl.handle.net/10945/2165
dc.description.abstractAccurate prediction of nearshore waves and currents is of critical importance in littoral naval operations. This study examines the effects of complex bathymetry on nearshore currents. Data collected by an array of 12 pressure and velocity sensors in the Nearshore Canyon Experiment (NCEX), conducted near La Jolla, California in 2003, were analyzed to investigate the variability of nearshore currents near a submarine canyon. Time series of pressure, 3-component velocity, and wave heights along the 10 meter depth contour were analyzed to determine the relative importance of tides, waves, and winds in the forcing of nearshore currents outside the surf zone. Additionally, the spatial variability of the observed currents was investigated in relation to the nearby canyon head. Case studies are examined to determine how different wave and tide conditions affect the currents near the canyon. In low-moderate wave conditions, tides dominate longshore currents, whereas cross-shore currents show the passage of irregular bore-like features. The currents are coherent away from the submarine canyon and decay towards the canyon head. Strong longshore currents were observed near the canyon head during a large wave event that were likely driven by an alongshore pressure gradient associated with wave set-up variations.en_US
dc.description.urihttp://archive.org/details/analysisofnearsh109452165
dc.format.extentxiv, 47 p. : col. ill.en_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.rightsApproved for public release, distribution unlimiteden_US
dc.subject.lcshSubmarine valleysen_US
dc.subject.lcshTidal currentsen_US
dc.subject.lcshTidesen_US
dc.subject.lcshOcean currentsen_US
dc.titleAnalysis of nearshore currents near a submarine canyonen_US
dc.typeThesisen_US
dc.contributor.secondreaderThornton, Edward B.
dc.contributor.corporateNaval Postgraduate School (U.S.).
dc.contributor.departmentOceanography
dc.identifier.oclc61729269
etd.thesisdegree.nameM.S.en_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineApplied Scienceen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
etd.verifiednoen_US


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