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Internal tide coherence and decay over a wide shelf sea

Inall, Mark; Aleynik, Dimitry; Boyd, Tim; Palmer, Matthew; Sharples, Jonathan. 2011 Internal tide coherence and decay over a wide shelf sea. Geophysical Research Letters, 38. L23607. 10.1029/2011GL049943

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Abstract/Summary

A quasi-synoptic hydrography and velocity section is used to determine the structure and the decay rate of the internal tide (IT) across the broad continental shelf of the Celtic Sea. In these observations the IT is coherent over more than 170 km, about five wavelengths, with an estimated shoreward energy decay scale of 42 km. The inferred IT wavelength-averaged dissipation rate near the shelf edge is estimated as 2.08 × 10−7 Wkg−1, in close agreement with tidally- and vertically-averaged measurements from the region. These results provide the first in situ evidence of IT coherence over many wavelengths in a shelf sea

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1029/2011GL049943
ISSN: 0094-8276
Additional Information. Not used in RCUK Gateway to Research.: An edited version of this paper was published by AGU. Copyright (2011) American Geophysical Union.
Additional Keywords: INTERNAL TIDES, MIXING, SHELF SEAS, VERTICAL FLUXES
NORA Subject Terms: Marine Sciences
Date made live: 12 Jan 2012 14:51
URI: http://nora.nerc.ac.uk/id/eprint/16353

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