The Sensitivity Analysis of Parameters of WAVEWATCH III Ocean Wave Model / WAVEWATCHIII海洋波浪模式之參數敏感度分析

碩士 / 國立成功大學 / 水利及海洋工程學系碩博士班 / 92 / WAVEWATCH III wave model has already widely used in the wave prediction, but there are lots of forefathers take advantage of the observation or the water conservancy project model experiment to receive the experience formula. the parameter value in the type is having scholar experts to engaged in relevant research constantly, expect to obtain the best parameter value. This paper generalized the parameters of WAVEWATCH III wave model which revised from many forefathers. Using the sensitivity analysis of statistics, then we get the sort of these parameters, each of them are: the effective wind factor (co), coefficient of calculating the shape of PM spectrum (Xp), the proportion constant of wave energy (C), the swell attenuation filter factor by wind (Xs), the bottom friction coefficient (Γ ), the mean relative depth (kd ), coefficient of calculating the shape of ripe spectrum (Xr, Xf) in turn. The permutation of these parameters showed the level of influence of WAVEWATCH III wave model. In addition, in order to understand in above-mentioned eight parameters, whether each parameter has obvious response to the result of calculation of the way , this text chooses the number of parameter to calculate by way of accumulating one by one, the result show that has more obvious response to the result of calculation of the way with co, Xp, C, Xs. Making use of this result of the susceptibility analysis, the best parameter when by seeking the way to apply to the sea area of Taiwan in ARS (Adaptive Random Search) approach under monsoon and typhoon weather condition. It was shown that different weather condition will influence the settlement of parameter value by the result. Furthermore, use the observation around Taiwan water to verify the suitability of these parameters. It was shown that using the parameters after adjusting to calculate the wave and relatively close to the surveying value by the result, it is proved that this paper analyses with the susceptibility that analyses about the parameter first, then use ARS approach to seek the research course of the best parameter can make the way calculate out the rational result.

Identiferoai:union.ndltd.org:TW/092NCKU5083025
Date January 2004
CreatorsWen-Chin Lin, 林文欽
ContributorsChia-Chuen Kao, Ben-Chun Lee, 高家俊, 李汴軍
Source SetsNational Digital Library of Theses and Dissertations in Taiwan
Languagezh-TW
Detected LanguageEnglish
Type學位論文 ; thesis
Format61

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