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Buoy observations of the influence of swell on wind waves in the open ocean

Buoy observations of the influence of swell on wind waves in the open ocean
Buoy observations of the influence of swell on wind waves in the open ocean
The influence of longer (swell) on shorter, wind sea waves is examined using an extensive database of directional buoy measurements obtained from a heave-pitch-roll buoy moored in deep water in the South Atlantic. This data set is unique for such an investigation due to the ubiquitous presence of a young swell component propagating closely in direction and frequency with the wind sea, as well as a longer, opposing swell. Our results show, within the statistical limits of the regressions obtained from our analysis when compared to measurements in swell free environments, that there is no obvious influence of swell on wind sea growth. For operational purposes in ocean engineering this means that power-laws from fetch limited situations describing the wind sea growth can be applied in more realistic situations in the open sea when swell is present.
wind sea growth, high frequency spectrum, equilibrium range, Campos Basin, directional buoy data
0141-1187
49-60
Violante-Carvalho, N.
ab7c0274-f954-4fba-92dd-1a153b6da8c7
Ocampo-Torres, F.J.
a3fe9fe4-eddc-45f8-9e1a-bdfd434c26c5
Robinson, I.S.
548399f7-f9eb-41ea-a28d-a248d3011edc
Violante-Carvalho, N.
ab7c0274-f954-4fba-92dd-1a153b6da8c7
Ocampo-Torres, F.J.
a3fe9fe4-eddc-45f8-9e1a-bdfd434c26c5
Robinson, I.S.
548399f7-f9eb-41ea-a28d-a248d3011edc

Violante-Carvalho, N., Ocampo-Torres, F.J. and Robinson, I.S. (2004) Buoy observations of the influence of swell on wind waves in the open ocean. Applied Ocean Research, 26 (1-2), 49-60. (doi:10.1016/j.apor.2003.11.002).

Record type: Article

Abstract

The influence of longer (swell) on shorter, wind sea waves is examined using an extensive database of directional buoy measurements obtained from a heave-pitch-roll buoy moored in deep water in the South Atlantic. This data set is unique for such an investigation due to the ubiquitous presence of a young swell component propagating closely in direction and frequency with the wind sea, as well as a longer, opposing swell. Our results show, within the statistical limits of the regressions obtained from our analysis when compared to measurements in swell free environments, that there is no obvious influence of swell on wind sea growth. For operational purposes in ocean engineering this means that power-laws from fetch limited situations describing the wind sea growth can be applied in more realistic situations in the open sea when swell is present.

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More information

Published date: 2004
Keywords: wind sea growth, high frequency spectrum, equilibrium range, Campos Basin, directional buoy data

Identifiers

Local EPrints ID: 12482
URI: http://eprints.soton.ac.uk/id/eprint/12482
ISSN: 0141-1187
PURE UUID: 00401dea-9f34-4d68-b386-7509c0a2b7f5

Catalogue record

Date deposited: 18 Nov 2004
Last modified: 08 Jan 2022 18:47

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Contributors

Author: N. Violante-Carvalho
Author: F.J. Ocampo-Torres
Author: I.S. Robinson

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