Comparative evaluation of directional wave analysis techniques applied to field measurements

Michel Benoit, Gerard Goasguen

Research output: Contribution to conferencePaperpeer-review

Abstract

In order to set up an operational data processing program for the analysis of in-situ wave measurements, six directional wave analysis methods are compared for a ≪single-point≫ measuring system. In a previous step of this study, such a comparison had been performed on three different types of directional wave spectra recorded in a laboratory wave basin. In the present work, these methods are applied to field measurements by analyzing data from a three-displacements buoy for two different meteorological conditions (swell and local wind-sea). `Single-point' gauges are found to accurately resolve unimodal spectra when associated to advanced methods (Iterative Maximum Likelihood Method, Maximum Entropy Method, Bayesian Method). This comparative exercise allows to reach a better knowledge of capabilities, limitations and performances of directional analysis methods (including operational aspects such as CPU time) and will serve for the choice of methods for routine analysis.

Original languageEnglish
Pages87-94
Number of pages8
Publication statusPublished - 1 Jan 1999
Externally publishedYes
EventProceedings of the 1999 9th International Offshore and Polar Engineering Conference (ISOPE-99) - Brest
Duration: 30 May 19994 Jun 1999

Conference

ConferenceProceedings of the 1999 9th International Offshore and Polar Engineering Conference (ISOPE-99)
CityBrest
Period30/05/994/06/99

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