| 摘要: |
| 海浪谱是表征海浪结构的一个重要特性,它不仅能揭示海浪的内部结构,而且还可描述海浪的对外表现特征。对于不规则海浪,人们常用方向谱来描述,目前大多写成
S(ω,θ)=S(ω)cosβθ
式中θ为谱中组成波的传播方向与主浪向的夹角,ω为圆频率,S(ω)为频谱,β为待定系数。
海浪频谱能清楚地指明波能集中的频带,这对海洋工程的波浪载荷计算具有重要意义。显然,用上述形式表示海浪方向谱,关键是得到其频谱。 |
| 关键词: 黄河三角洲海区、海浪频谱 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第3161号 |
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| WIND WAVE SPECTRA IN HUANGHE RIVER DELTA OFFSHORE AREA |
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Wang Yimou, Fan Shunting, Hou Yijun
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Institute of Oceanology,Chinese Academy of Sciences
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| Abstract: |
| The paper presents results of analysis of observed data on wind wave spectra in the Huanghe River Delta offshore area. An empirical wind wave spectrum was fitted with a standard spectral form in common use. Comparison of the standard and observed spectra showed good agreement for the studied sea area. Introduction of a water depth parameter into wind wave spectra with three parameters, yielded this paper’s theoretical wind wave spectra suitable for both finite and infinite water depth. This paper integrates spectra parameters with wind wave characteristics, so that if wave characteristics are known, wind wave spectra can be estimated. The theoretical spectra agreed with measured spectra for different water depth. |
| Key words: WIND WAVE SPECTRA,HUANGHE RIVER DELTA OFFSHORE AREA |
