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dc.contributor.authorHolbrook, W. Steven  Concept link
dc.contributor.authorFer, Ilker  Concept link
dc.contributor.authorSchmitt, Raymond W.  Concept link
dc.date.accessioned2010-06-28T15:03:24Z
dc.date.available2010-06-28T15:03:24Z
dc.date.issued2009-12-31
dc.identifier.citationGeophysical Research Letters 36 (2009): L00D10en_US
dc.identifier.urihttps://hdl.handle.net/1912/3695
dc.descriptionAuthor Posting. © American Geophysical Union, 2009. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 36 (2009): L00D10, doi:10.1029/2009GL038909.en_US
dc.description.abstractInternal tides, or internal gravity waves propagating at tidal frequencies, play an important role in ocean mixing but are challenging to detect and map over large spatial sections in the ocean's interior. We present seismic images of oceanic finestructure in the Norwegian Sea that demonstrate that semidiurnal (M2) internal tidal beams can be seismically imaged. We observe bands of seismic reflections that cross isotherms and closely mimic the expected internal tide ray characteristic over hundreds of meters vertically and tens of km laterally, in an area where critical seafloor slopes are common. Coincident temperature and density profiles show that the reflections come from reversible finestructure caused by internal wave strains. Where the beams intersect the seafloor, indications of enhanced mixing are present, including finestructure disruption and enhanced internal wave energy. These results suggest that seismic oceanography can be an effective tool in studies of ocean mixing by internal tides.en_US
dc.description.sponsorshipThis work was supported by Office of Naval Research grant N00014-04-1-0585 and by NSF's Ocean Drilling Program (grant OCE-0221366) and Physical Oceanography Program (grants OCE-0337289, OCE-0452744, and OCE-0648620).en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Geophysical Unionen_US
dc.relation.urihttps://doi.org/10.1029/2009GL038909
dc.subjectSeismic oceanographyen_US
dc.titleImages of internal tides near the Norwegian continental slopeen_US
dc.typeArticleen_US
dc.identifier.doi10.1029/2009GL038909


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