Measuring ocean wave period with satellite altimeters: a simple empirical model
Measuring ocean wave period with satellite altimeters: a simple empirical model
A simple empirical model is proposed to retrieve wave period from Ku-band radar altimeter backscatter and significant wave height. The model formulation is heuristic, and fitted using a large dataset of collocated Topex altimeter and buoys measurements. Empirical models are proposed for the zero up-crossing, the mean and the peak wave period, and compared with models by Davies et al. [1997] and Hwang et al. [1998]. Their performance is assessed using an independent validation dataset, and gives a retrieval error of 0.8s. Regional analysis indicates that the wave period models perform better in wind seas than in swell-dominated conditions.
geology
02150-[5pp]
Gommenginger, C.P.
f0db32be-34bb-44da-944b-c6b206ca4143
Srokosz, M.A.
1e0442ce-679f-43f2-8fe4-9a0f0174d483
Challenor, P.G.
a7e71e56-8391-442c-b140-6e4b90c33547
November 2003
Gommenginger, C.P.
f0db32be-34bb-44da-944b-c6b206ca4143
Srokosz, M.A.
1e0442ce-679f-43f2-8fe4-9a0f0174d483
Challenor, P.G.
a7e71e56-8391-442c-b140-6e4b90c33547
Gommenginger, C.P., Srokosz, M.A. and Challenor, P.G.
(2003)
Measuring ocean wave period with satellite altimeters: a simple empirical model.
Geophysical Research Letters, 30 (22), .
(doi:10.1029/2003GL017743).
Abstract
A simple empirical model is proposed to retrieve wave period from Ku-band radar altimeter backscatter and significant wave height. The model formulation is heuristic, and fitted using a large dataset of collocated Topex altimeter and buoys measurements. Empirical models are proposed for the zero up-crossing, the mean and the peak wave period, and compared with models by Davies et al. [1997] and Hwang et al. [1998]. Their performance is assessed using an independent validation dataset, and gives a retrieval error of 0.8s. Regional analysis indicates that the wave period models perform better in wind seas than in swell-dominated conditions.
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Published date: November 2003
Keywords:
geology
Organisations:
National Oceanography Centre,Southampton
Identifiers
Local EPrints ID: 1343
URI: http://eprints.soton.ac.uk/id/eprint/1343
ISSN: 0094-8276
PURE UUID: e8116112-e3de-4e4e-b8e0-ca154ca75b33
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Date deposited: 16 Apr 2004
Last modified: 15 Mar 2024 04:43
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Contributors
Author:
C.P. Gommenginger
Author:
M.A. Srokosz
Author:
P.G. Challenor
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