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dc.contributor.authorSpall, Michael A.  Concept link
dc.date.accessioned2010-12-01T21:23:37Z
dc.date.available2010-12-01T21:23:37Z
dc.date.issued2007-04
dc.identifier.citationJournal of Physical Oceanography 37 (2007): 1092-1097en_US
dc.identifier.urihttps://hdl.handle.net/1912/4146
dc.descriptionAuthor Posting. © American Meteorological Society, 2007. 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 37 (2007): 1092–1097, doi:10.1175/JPO3045.1.en_US
dc.description.abstractThe impact of the observed relationship between sea surface temperature and surface wind stress on baroclinic instability in the ocean is explored using linear theory and a nonlinear model. A simple parameterization of the influence of sea surface temperature on wind stress is used to derive a surface boundary condition for the vertical velocity at the base of the oceanic Ekman layer. This boundary condition is applied to the classic linear, quasigeostrophic stability problem for a uniformly sheared flow originally studied by Eady in the 1940s. The results demonstrate that for a wind directed from warm water toward cold water, the coupling acts to enhance the growth rate, and increase the wavelength, of the most unstable wave. Winds in the opposite sense reduce the growth rate and decrease the wavelength of the most unstable wave. For representative coupling strengths, the change in growth rate can be as large as ±O(50%). This effect is largest for shallow, strongly stratified, low-latitude flows.en_US
dc.description.sponsorshipThis work was supported by the Office of Naval Research Grant N00014-05-1-0300.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Meteorological Societyen_US
dc.relation.urihttps://doi.org/10.1175/JPO3045.1
dc.subjectWind stressen_US
dc.subjectInstabilityen_US
dc.subjectSea surface temperatureen_US
dc.subjectBaroclinic flowsen_US
dc.subjectOcean dynamicsen_US
dc.titleEffect of sea surface temperature-wind stress coupling on baroclinic instability in the oceanen_US
dc.typeArticleen_US
dc.identifier.doi10.1175/JPO3045.1


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