{"id":3868,"date":"2016-08-16T15:57:51","date_gmt":"2016-08-16T19:57:51","guid":{"rendered":"http:\/\/mseas.mit.edu\/?p=3868"},"modified":"2021-07-06T13:05:54","modified_gmt":"2021-07-06T17:05:54","slug":"a-coupled-mode-shallow-water-model-for-tidal-analysis-internal-tide-reflection-and-refraction-by-the-gulf-stream","status":"publish","type":"post","link":"https:\/\/mseas.mit.edu\/?p=3868","title":{"rendered":"A Coupled-mode Shallow Water model for tidal analysis: Internal-tide reflection and refraction by the Gulf Stream"},"content":{"rendered":"A novel hydrostatic coupled-mode shallow water model (CSW) is developed\r\nand used to simulate tides in the greater Middle Atlantic Bight region.\r\nThe model incorporates realistic stratification and topography, an internal\r\ntide generating function (ITGF) that provides internal tide forcing from existing\r\nsurface tide parameters, and dynamical terms that describe linearized\r\nwave- mean-flow and mean-density interactions. Several idealized and realistic\r\nsimulations are used to verify the model. These verification simulations\r\ninclude internal-tide interactions involving topographic coupling and mean-flow\r\ncoupling, and comparisons with other simpler and more complex nonlinear\r\nprimitive-equation models. Then, twenty-four simulations of internal\r\ntide generation and propagation in the greater Middle Atlantic Bight region\r\nare used to identify significant internal-tide interactions with the Gulf Stream.\r\nThe simulations indicate that locally generated mode-1 internal tides can refract\r\nand\/or reflect at the Gulf Stream. The redirected internal tides often\r\nre-appear at the shelfbreak, where they produce onshore energy fluxes that\r\nare intermittent (i.e., noncoherent) because meanders in the Gulf Stream alter\r\ntheir precise location, phase, and amplitude. These results provide an explanation\r\nfor the anomalous onshore energy fluxes previously observed at the\r\nNew Jersey Shelfbreak and linked with the generation of nonlinear internal\r\nwaves.","protected":false},"excerpt":{"rendered":"<p>A novel hydrostatic coupled-mode shallow water model (CSW) is developed and used to simulate tides in the greater Middle Atlantic Bight region. The model incorporates realistic stratification and topography, an internal tide generating function (ITGF) that provides internal tide forcing from existing surface tide parameters, and dynamical terms that describe linearized wave- mean-flow and mean-density [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32,37,28,38,5,59,54],"tags":[],"class_list":["post-3868","post","type-post","status-publish","format-standard","hentry","category-numerical-ocean-modeling","category-applications-to-ocean-dynamics","category-multiscale-ocean-modeling","category-physical-oceanography","category-publications","category-papers-in-refereed-journals-physical-oceanography","category-papers-in-refereed-journals-multiscale-ocean-modeling"],"_links":{"self":[{"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts\/3868","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3868"}],"version-history":[{"count":2,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts\/3868\/revisions"}],"predecessor-version":[{"id":3870,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=\/wp\/v2\/posts\/3868\/revisions\/3870"}],"wp:attachment":[{"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mseas.mit.edu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}