文献类型：期刊文献

中文题名：基于混合风场的南海台风浪数值模拟

英文题名：Numerical Modeling of Typhoon Waves in South China Sea Based on Mixed Wind Field

作者：林金波[1];毛鸿飞[1];吴光林[1];潘新祥[2];贾宝柱[2]

机构：[1]广东海洋大学海洋工程学院,广东湛江524088;[2]广东海洋大学海运学院,广东湛江524088

年份：2021

卷号：41

期号：6

起止页码：44

中文期刊名：广东海洋大学学报

外文期刊名：Journal of Guangdong Ocean University

收录：CSTPCD、、北大核心、北大核心2020

基金：国家自然科学基金委青年项目(52001071);国家自然科学基金委面上项目(52071090);广东省教育厅高校青年创新人才项目(2019KQNCX045);广东省“冲一流”省财政专项资金建设项目(231419010);湛江市海洋青年人才创新项目(2021E05009);湛江市非资助科技攻关计划项目(2021B01160);广东海洋大学科研启动费资助项目(060302072103)。

语种：中文

中文关键词：混合风场;SWAN;台风浪;Holland;南海

外文关键词：mixed wind field;SWAN;typhoon waves;Holland;South China Sea

中文摘要：【目的】进行台风浪的模拟计算和预测分析,以期预防和降低沿海地区台风灾害损失。【方法】为充分考虑背景风场及台风场对波浪的影响,利用欧洲中期数值天气预报中心(ECMWF)背景风场及Holland理论风场构造混合风场,以混合风场作为SWAN(Simulating Waves Nearshore)模式的输入风场,并结合ETOPO1全球地形数据集实测地形数据,建立南海台风浪模型,该模型精度通过计算有效波高与实测数据的对比进行验证。【结果】利用南海台风浪模型对台风“天鸽”和“山竹”过境期间的中国南海台风波浪场进行计算,有效波高变化趋势及最大值结果与实测数据吻合良好,验证了模型的计算精度。两次台风引起的南海外海海面最大有效波高均达10 m以上,近岸台风浪有效波高分别在9 m和8 m以上;台风浪行进路径与台风路径稍有不同,台风行进路线稍偏右前侧台风引起的波浪较高,台风过境时预计登陆地点东北侧沿岸建筑物和城市防洪安全需重点考虑。【结论】采用混合风场开展台风浪计算获得与实际台风波浪场较为吻合的计算结果,可为南海台风浪研究以及沿岸地区的防灾减灾提供可靠的技术手段。

外文摘要：【Objective】Typhoon can cause huge waves that is great threat to the safety of marine facilities and coastal cities.Therefore,It is of great practical significant for disaster prevention and mitigation to simulate and predict the typhoon waves.【Method】To fully consider the influence of the background and typhoon wind field on waves,a mixed wind field is constructed by the ECMWF background wind field and Holland theoretical wind field.A typhoon waves model of the South Sea is established based on the SWAN.In the model,the topographical data measured by ETOPO1 global topographical data set is adopted.To validate the model,the significant wave height calculated by the model is compared with the measured data.【Result】Using the model to analyze the typhoon wave field in the South China Sea of the typhoon Hato and Mangkhut,the trend and maximum value of the calculated significant wave height are in good agreement with the measured data.Then the typhoon waves in the South China Sea for typhoon“Hato”and“Mangkhut”are calculated and analyzed by the numerical model.The maximum significant wave height in open seas caused by the two typhoons is more than 10 m while the nearshore significant wave height are more than 9 m and 8 m,respectively.Meanwhile,it is also found that the route of the typhoon wave is slightly different to the typhoon route.The typhoon waves are higher on the northeast side of the typhoon route.Therefore,it is expected that the coastal structure and urban flood control on the northeast side of typhoon landing site should be considered,carefully,when the typhoon passes through.【Conclusion】Model results coincided with the real typhoon wave field can be obtained by mixed wind field.A reliable technical tool for the study of the typhoon waves in the South China Sea and disaster prevention in coastal areas.