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dc.contributor.authorda Silva, Jose C. B.  Concept link
dc.contributor.authorHelfrich, Karl R.  Concept link
dc.date.accessioned2010-05-27T15:18:11Z
dc.date.available2010-05-27T15:18:11Z
dc.date.issued2008-11-20
dc.identifier.citationJournal of Geophysical Research 113 (2008): C11016en_US
dc.identifier.urihttps://hdl.handle.net/1912/3546
dc.descriptionAuthor 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): C11016, doi:10.1029/2008JC005004.en_US
dc.description.abstractSynthetic Aperture Radar images revealed the two-dimensional propagation characteristics of short-period internal solitary waves in Race Point Channel in Massachusetts Bay. The images and in situ measurements of the flow in the channel are used to infer the likely generation mechanism of the waves. The solitary waves are generated during the ebb phase of the tide within the channel. On some occasions, two trains of internal waves are generated presumably at the same location but at slightly different phases of the ebb tide. The main characteristics of the (two-layer) flow are described based on the criticality of the Froude number. It is suggested that these two individual packets of waves result from flow passage through resonance (where the Froude number is one). One packet is generated as the flow passes through the transcritical regime during the acceleration phase of the (ebb) tidal current, and another packet is generated during the deceleration phase. Both packets propagate upstream when the tide slacks, but with slightly different propagation directions.en_US
dc.description.sponsorshipJ. C. B. da Silva is grateful to FCT for sabbatical leave support (BSAB/610/2006) and the Calouste Gulbenkian Foundation for partial support. J. C. B. da Silva was supported by FCT projects ‘‘SPOTIWAVE-II’’ (project code POCI/MAR/57836/2004) and ‘‘AMAZING’’ (project code PDCTE/CTA/49953/2003). K. R. Helfrich was supported by ONR grant N000140610798. This research was partially supported by the Woods Hole Sea Grant Program (2008– 2010 cycle), under a grant from the U.S. National Oceanic and Atmospheric Administration (NOAA), U.S. Department of Commerce, Grant No. NA06OAR4170021, project number R/O-40.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Geophysical Unionen_US
dc.relation.urihttps://doi.org/10.1029/2008JC005004
dc.subjectInternal solitary wavesen_US
dc.subjectResonant generationen_US
dc.subjectFlow through straitsen_US
dc.subjectVariable Froudeen_US
dc.subjectSynthetic aperture radaren_US
dc.subjectMassachusetts Bayen_US
dc.titleSynthetic Aperture Radar observations of resonantly generated internal solitary waves at Race Point Channel (Cape Cod)en_US
dc.typeArticleen_US
dc.identifier.doi10.1029/2008JC005004


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