Shoaling of nonlinear internal waves in Massachusetts Bay


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dc.contributor.author Scotti, Alberto
dc.contributor.author Beardsley, Robert C.
dc.contributor.author Butman, Bradford
dc.contributor.author Pineda, Jesus
dc.date.accessioned 2010-07-12T17:56:04Z
dc.date.available 2010-07-12T17:56:04Z
dc.date.issued 2008-08-19
dc.identifier.citation Journal of Geophysical Research 113 (2008): C08031 en_US
dc.identifier.uri http://hdl.handle.net/1912/3733
dc.description Author Posting. © American Geophysical Union, 2008. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 113 (2008): C08031, doi:10.1029/2008JC004726. en_US
dc.description.abstract The shoaling of the nonlinear internal tide in Massachusetts Bay is studied with a fully nonlinear and nonhydrostatic model. The results are compared with current and temperature observations obtained during the August 1998 Massachusetts Bay Internal Wave Experiment and observations from a shorter experiment which took place in September 2001. The model shows how the approaching nonlinear undular bore interacts strongly with a shoaling bottom, offshore of where KdV theory predicts polarity switching should occur. It is shown that the shoaling process is dominated by nonlinearity, and the model results are interpreted with the aid of a two-layer nonlinear but hydrostatic model. After interacting with the shoaling bottom, the undular bore emerges on the shallow shelf inshore of the 30-m isobath as a nonlinear internal tide with a range of possible shapes, all of which are found in the available observational record. en_US
dc.description.sponsorship A. Scotti began this project as a Postdoctoral Scholar at the Woods Hole Oceanographic Institution, with support from the Johnson Foundation and the USGS. Further support was provided to Scotti by the Office of Naval Research under grants N00014-01-1-0172, N00014-03-1-0553, and N00014-05-1-0361, and by NSF under grant OCE 07-29636. R. Beardsley was supported by ONR under grants N00014-98-1- 0059, N00014-00-1-0210, and the Smith Chair in Coastal Physical Oceanography. J. Pineda was supported by ONR under grants N00014-01-1-0172, and by a WHOIOcean Life Institute Fellowship. en_US
dc.format.mimetype application/pdf
dc.language.iso en_US en_US
dc.publisher American Geophysical Union en_US
dc.relation.uri http://dx.doi.org/10.1029/2008JC004726
dc.subject Nonlinear internal waves en_US
dc.subject Internal tide en_US
dc.subject Shoaling en_US
dc.title Shoaling of nonlinear internal waves in Massachusetts Bay en_US
dc.type Article en_US
dc.identifier.doi 10.1029/2008JC004726

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