Show simple item record

dc.contributor.authorFewings, Melanie R.  Concept link
dc.contributor.authorLentz, Steven J.  Concept link
dc.contributor.authorFredericks, Janet J.  Concept link
dc.date.accessioned2010-11-04T17:06:35Z
dc.date.available2010-11-04T17:06:35Z
dc.date.issued2008-11
dc.identifier.citationJournal of Physical Oceanography 38 (2008): 2358-2378en_US
dc.identifier.urihttps://hdl.handle.net/1912/4068
dc.descriptionAuthor Posting. © American Meteorological Society, 2008. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 38 (2008): 2358-2378, doi:10.1175/2008JPO3990.1.en_US
dc.description.abstractSix-yr-long time series of winds, waves, and water velocity from a cabled coastal observatory in 12 m of water reveal the separate dependence of the cross-shelf velocity profile on cross-shelf and along-shelf winds, waves, and tides. During small waves, cross-shelf wind is the dominant mechanism driving the cross-shelf circulation after tides and tidal residual motions are removed. The along-shelf wind does not drive a substantial cross-shelf circulation. During offshore winds, the cross-shelf circulation is offshore in the upper water column and onshore in the lower water column, with roughly equal and opposite volume transports in the surface and bottom layers. During onshore winds, the circulation is nearly the reverse. The observed profiles and cross-shelf transport in the surface layer during winter agree with a simple two-dimensional unstratified model of cross-shelf wind stress forcing. The cross-shelf velocity profile is more vertically sheared and the surface layer transport is stronger in summer than in winter for a given offshore wind stress. During large waves, the cross-shelf circulation is no longer roughly symmetric in the wind direction. For onshore winds, the cross-shelf velocity profile is nearly vertically uniform, because the wind- and wave-driven shears cancel; for offshore winds, the profile is strongly vertically sheared because the wind- and wave-driven shears have the same sign. The Lagrangian velocity profile in winter is similar to the part of the Eulerian velocity profile due to cross-shelf wind stress alone, because the contribution of Stokes drift to the Lagrangian velocity approximately cancels the contribution of waves to the Eulerian velocity.en_US
dc.description.sponsorshipThis research was funded by the Ocean Sciences Division of the National Science Foundation under Grants OCE-0241292 and OCE-0548961 and by National Aeronautics and Space Administration Headquarters under Grant NNG04GL03G and the Earth System Science Fellowship Grant NNG04GQ14H. MVCO is partly funded by the Woods Hole Oceanographic Institution and the Jewett/EDUC/Harrison Foundation.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Meteorological Societyen_US
dc.relation.urihttps://doi.org/10.1175/2008JPO3990.1
dc.subjectContinental shelfen_US
dc.subjectWinden_US
dc.titleObservations of cross-shelf flow driven by cross-shelf winds on the inner continental shelfen_US
dc.typeArticleen_US
dc.identifier.doi10.1175/2008JPO3990.1


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record