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Measuring ocean wave period with satellite altimeters: a simple empirical model

Gommenginger, C.P.; Srokosz, M.A.; Challenor, P.G.. 2003 Measuring ocean wave period with satellite altimeters: a simple empirical model. Geophysical Research Letters, 30 (22). 02150-[5pp]. 10.1029/2003GL017743

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Abstract/Summary

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.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1029/2003GL017743
ISSN: 0094-8276
Additional Keywords: geology
Date made live: 16 Apr 2004 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/101343

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