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On the observability of internal tidal waves in remotely-sensed ocean colour data

On the observability of internal tidal waves in remotely-sensed ocean colour data
On the observability of internal tidal waves in remotely-sensed ocean colour data
This paper reveals bands of enhanced levels of near-surface chlorophyll in the central Bay of Biscay in remotely-sensed images from the SeaWiFS ocean colour sensor, and shows that these are most probably associated with the crests of internal tidal waves travelling away from the shelf break. We are able to explain this effect as likely to result from the uplifting of a subsurface chlorophyll maximum by the passing internal tides, to such a level as may be “seen” by the satellite sensor, and have quantified the effect with a simple model. We believe this is the first time that internal tidal waves have been reported as having a direct and observable effect in such remotely-sensed ocean colour images.
CHLOROPHYLL, BISCAY BAY, ATLNEBIS, REMOTE SENSING, INTERNAL TIDES, OCEAN MODELS, ERS-2, OCEAN COLOUR, INTERNAL WAVES
0094-8276
Art 1569-[4pp]
Da Silva, J.C.B.
f0299437-57df-41b7-a0fd-520aa8d0a319
New, A.L.
69c2be8b-c6c2-408f-9612-6980b1a25802
Srokosz, M.A.
f1701d3e-01b3-43d0-8993-9fd523032a79
Smyth, T.J.
cf25d945-6935-4f1b-83d3-42de152da0f2
Da Silva, J.C.B.
f0299437-57df-41b7-a0fd-520aa8d0a319
New, A.L.
69c2be8b-c6c2-408f-9612-6980b1a25802
Srokosz, M.A.
f1701d3e-01b3-43d0-8993-9fd523032a79
Smyth, T.J.
cf25d945-6935-4f1b-83d3-42de152da0f2

Da Silva, J.C.B., New, A.L., Srokosz, M.A. and Smyth, T.J. (2002) On the observability of internal tidal waves in remotely-sensed ocean colour data. Geophysical Research Letters, 29 (12), Art 1569-[4pp]. (doi:10.1029/2001GL013888).

Record type: Article

Abstract

This paper reveals bands of enhanced levels of near-surface chlorophyll in the central Bay of Biscay in remotely-sensed images from the SeaWiFS ocean colour sensor, and shows that these are most probably associated with the crests of internal tidal waves travelling away from the shelf break. We are able to explain this effect as likely to result from the uplifting of a subsurface chlorophyll maximum by the passing internal tides, to such a level as may be “seen” by the satellite sensor, and have quantified the effect with a simple model. We believe this is the first time that internal tidal waves have been reported as having a direct and observable effect in such remotely-sensed ocean colour images.

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More information

Published date: 2002
Keywords: CHLOROPHYLL, BISCAY BAY, ATLNEBIS, REMOTE SENSING, INTERNAL TIDES, OCEAN MODELS, ERS-2, OCEAN COLOUR, INTERNAL WAVES
Organisations: National Oceanography Centre,Southampton

Identifiers

Local EPrints ID: 2130
URI: http://eprints.soton.ac.uk/id/eprint/2130
ISSN: 0094-8276
PURE UUID: feef9c03-7a3e-43e3-b66a-4d733c247eea

Catalogue record

Date deposited: 13 May 2004
Last modified: 15 Jul 2019 19:39

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Contributors

Author: J.C.B. Da Silva
Author: A.L. New
Author: M.A. Srokosz
Author: T.J. Smyth

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