{"id":1092,"date":"2001-09-06T06:26:59","date_gmt":"2001-09-06T10:26:59","guid":{"rendered":"http:\/\/mseas.net16.net\/?p=1092"},"modified":"2021-08-16T21:28:12","modified_gmt":"2021-08-17T01:28:12","slug":"features-of-dominant-mesoscale-variability-circulation-patterns-and-dynamics-in-the-strait-of-sicily","status":"publish","type":"post","link":"https:\/\/mseas.mit.edu\/?p=1092","title":{"rendered":"Features of dominant mesoscale variability, circulation patterns and dynamics in the Strait of Sicily"},"content":{"rendered":"Combining an intensive hydrographic data survey with a numerical primitive equation model by data\r\nassimilation, the main features of dominant mesoscale to subbasin-scale variability in the Strait of Sicily\r\n(Mediterranean Sea) during the summer of 1996 are estimated, revealed and described, and several hydrographic\r\nand dynamical properties of the #ow and variabilities discussed. The feature identi&#8221;cation is based\r\non two independent real-time analyses of the variability. One analysis `subjectivelya evaluates and studies\r\nphysical &#8220;eld forecasts and their variations. The other more `objectivelya estimates and forecasts the\r\nprincipal components of the variability. The two independent analyses are found to be in agreement and\r\ncomplementary. The dominant dynamical variations are revealed to be associated with &#8220;ve features: the\r\nAdventure Bank Vortex, Maltese Channel Crest, Ionian Shelfbreak Vortex, Messina Rise Vortex, and\r\ntemperature and salinity fronts of the Ionian slope. These features and their variations are found to have links\r\nwith the meanders of the Atlantic Ionian Stream. For each feature, the characteristic physical scales, and\r\ntheir deviations, are quanti&#8221;ed. The predominant circulation patterns, pathways and transformations of\r\nthe modi&#8221;ed Atlantic water, Ionian water and modi&#8221;ed Levantine intermediate water, are then identi&#8221;ed\r\nand discussed. For each of these water masses, the ranges of temperature, salinity, depth, velocity and\r\nresidence times, and the regional variations of these ranges, are computed. Based on the estimated &#8220;elds and\r\nvariability principal components, several properties of the dynamics in the Strait are discussed. These\r\ninclude: general characteristics of the mesoscale anomalies; bifurcations of the Atlantic Ionian Stream;\r\nrespective roles of topography, atmospheric forcings and internal dynamics; factors controlling (strengthening\r\nor weakening) the vortices identi&#8221;ed; interactions of the Messina Rise and Ionian Shelfbreak vortices;\r\nand, mesoscale dynamics and relatively complex features along the Ionian slope. For evaluation and\r\nvalidation of the results obtained, in situ data, satellite sea surface temperature images and trajectories of\r\nsurface drifters are employed, as well as comparisons with previous studies.","protected":false},"excerpt":{"rendered":"<p>Combining an intensive hydrographic data survey with a numerical primitive equation model by data assimilation, the main features of dominant mesoscale to subbasin-scale variability in the Strait of Sicily (Mediterranean Sea) during the summer of 1996 are estimated, revealed and described, and several hydrographic and dynamical properties of the #ow and variabilities discussed. The feature [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37,38,5,59],"tags":[],"class_list":["post-1092","post","type-post","status-publish","format-standard","hentry","category-applications-to-ocean-dynamics","category-physical-oceanography","category-publications","category-papers-in-refereed-journals-physical-oceanography"],"_links":{"self":[{"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts\/1092","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1092"}],"version-history":[{"count":2,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts\/1092\/revisions"}],"predecessor-version":[{"id":1141,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts\/1092\/revisions\/1141"}],"wp:attachment":[{"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}