| 摘要: |
| 利用阳江海域7次实测台风浪资料,统计台风浪的波参数特征值,分析台风浪过程特征,以及波浪谱特征。结果显示:(1)研究海域的台风浪受台风等级和台风路径的影响显著,台风等级越强、距离越近,台风浪过程越显著剧烈,台风浪波高和谱密度越大。(2)台风浪影响持续时间约为3 d,期间最大波高、谱峰周期、谱峰密度呈现基本一致的先增大后减小,最大波高相对于谱峰周期滞后约2~10 h。(3)各台风浪期间的波浪谱型主要以双峰谱为主,伴有少量单峰谱。(4)7次台风浪中影响最为显著的是台风“马鞍”,期间最大波高为10.87 m,谱峰密度53.79 m2/Hz。当台风“马鞍”距离较近、增强为台风级,最大波高和台风中心距离呈现良好的指数关系,最大波高随着台风中心距离的逐渐缩短而明显增大,距离越短、波高越大。相关成果可为阳江海域海上风电工程的设计和防灾减灾提供参考。 |
| 关键词: 台风浪 波参数 波浪谱 风浪 涌浪 |
| DOI：10.11759/hykx20231223001 |
| 分类号:P731.22 |
| 基金项目:国家自然科学基金项目(52338008) |
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| Analysis of the characteristics of typhoon waves in the Yangjiang sea area, Guangdong |
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HUAN Caiyun1,2, JIANG Zhenqiang1,2, XU Kundi3
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1.Key Laboratory of Far-shore Wind Power Technology of Zhejiang Province, Hangzhou 311122, China;2.Power China Huadong Engineering Corporation Limited, Hangzhou 311122, China;3.Yangzhou University, Yangzhou 225127, China
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| Abstract: |
| Based on seven sets of measured typhoon wave data in the Yangjiang sea area, the characteristic values of typhoon wave parameters are calculated, and the characteristics of the typhoon wave process and spectrum are analyzed. The results indicate the following: (1) Typhoon waves in the study area are significantly influenced by the typhoon grade and path. The stronger the typhoon grade and the closer the distance, the more pronounced and intense the typhoon wave process, with higher wave heights and spectral densities. (2) The duration of the typhoon wave impact is approximately 3 days, during which the maximum wave height, spectral peak period, and spectral peak density exhibit a generally consistent trend of initially increasing and then decreasing. The maximum wave height lags behind the peak period by about 2–10 hours. (3) The wave spectrum is predominantly bimodal, with a small number of unimodal spectra observed. (4) The most significant impact among the seven typhoon waves is from Typhoon Ma-on, with a maximum wave height of 10.87 m and a spectral peak density of 53.79 m2/Hz. As Typhoon Ma-on approaches and strengthens to the typhoon level, a strong exponential relationship exists between the maximum wave height and the distance from the typhoon center. The maximum wave height increases significantly as the distance from the typhoon center decreases; the shorter the distance, the higher the wave height. These findings can provide valuable reference data for the design, disaster prevention, and risk reduction of offshore wind power projects in the Yangjiang sea area. |
| Key words: typhoon wave wave parameters wave spectrum wind wave swell |
