Tide-Surge-Wave Interaction in the Taiwan Strait during Typhoons Soudelor (2015) and Dujuan (2015)
Tide-Surge-Wave Interaction in the Taiwan Strait during Typhoons Soudelor (2015) and Dujuan (2015)
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DOI：
10.3390/app10207382
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发表时间：
2020-10
期刊：
影响因子：
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通讯作者：
Li Zhang;S. Shang;Feng Zhang;Yanshuang Xie
中科院分区：
文献类型：
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作者：
Li Zhang;S. Shang;Feng Zhang;Yanshuang Xie
台风苏迪洛（2015年）和杜鹃（2015年）是2015年影响台湾海峡的两个最强风暴。本研究探讨台湾海峡西岸沃茨对苏迪罗与杜鹃过境的反应。这包括潮汐和风暴潮之间的共振耦合，风暴潮引起的台风波浪变化，以及波浪引起的水位上升的调查。利用数值模式模拟和台湾海峡台风“苏德洛”和“杜鹃”过境期间的验潮站和浮标观测资料分析，发现台湾海峡天文潮与风暴潮之间存在显著的共振耦合，导致风暴潮潮周期振荡，潮差减小。由于风暴潮的存在，潮汐波比预测的天文潮汐早到达，这是由于水位上升导致潮汐波加速。波高观测结果表明，风暴潮主要影响波浪，导致波高在潮汐周期内振荡。数值试验表明，水流和水位都对波高有影响。波浪主要受台湾海峡中部海流的影响，但当水位与水深相当时，波浪主要受水位的影响。波增模拟结果显示，波增在潮周期内也有振荡，而当地水深是影响波增分布的最重要因素。
Typhoons Soudelor (2015) and Dujuan (2015) were two of the strongest storms to affect the Taiwan Strait in 2015. This study investigated the response of the waters on the western bank of the Taiwan Strait to the passage of Soudelor and Dujuan. This included an investigation of the resonant coupling between the tide and storm surge, typhoon wave variation caused by the storm tide, and wave-induced water level rise. Analyses conducted using numerical model simulations and observations from tidal stations and buoys, obtained during the passage of both Soudelor and Dujuan, revealed that resonant coupling between the astronomical tide and storm surge in the Taiwan Strait was prominent, which resulted in tidal period oscillation on the storm surge and reduced tidal range. The tide wave arrived earlier than the predicted astronomical tide because of the existence of the storm surge, which was attributable to acceleration of the tidal wave caused by the water level rise. Wave height observations showed that the storm tide predominantly affected the waves, which resulted in wave heights that oscillated within the tidal period. Numerical experiments indicated that both the current and the water level affected wave height. Waves were affected mainly by the current in the middle of the Taiwan Strait, but mostly by water level when the water level was comparable with water depth. Wave setup simulations revealed that wave setup also oscillated within the tidal period, and that local bathymetry was the most important influencing factor of wave setup distribution.