Baroclinic energy flux at the continental shelf edge modified by wind-mixing

Stephenson, Gordon R.; Hopkins, Joanne E. ORCID: https://orcid.org/0000-0003-1504-3671; Green, J.A. Mattias; Inall, Mark E.; Palmer, Matthew R.. 2015 Baroclinic energy flux at the continental shelf edge modified by wind-mixing. Geophysical Research Letters, 42 (6). 1826-1833. 10.1002/2014GL062627

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Abstract/Summary

Temperature and current measurements from two moorings onshore of the Celtic Sea shelf break, a well-known hot spot for tidal energy conversion, show the impact of passing summer storms on the baroclinic wavefield. Wind-driven vertical mixing changed stratification to permit an increased on-shelf energy transport, and baroclinic energy in the semidiurnal band appeared at the moorings 1–4 days after the storm mixed the upper 50 m of the water column. The timing of the maximum in the baroclinic energy flux is consistent with the propagation of the semidiurnal internal tide from generation sites at the shelf break to the moorings 40 km away. Also, the ∼3 day duration of the peak in M2 baroclinic energy flux at the moorings corresponds to the restratification time scale following the first storm.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1002/2014GL062627
ISSN:	00948276
Additional Keywords:	internal tide; baroclinic energy flux; storm-driven mixing; critical slope; Celtic Sea
NORA Subject Terms:	Marine Sciences
Date made live:	20 Mar 2015 11:01 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/510237

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