东海黑潮对台风过境的响应特征
Response of Sea Level Anomaly to Typhoon around Kuroshio Area
投稿时间:2019-06-18  修订日期:2019-07-02
DOI:
中文关键词:  黑潮  台风  海表面高度异常
英文关键词:Kuroshio Current  Typhoon  Sea Level Anomaly.
基金项目:
作者单位E-mail
张磊 中国人民解放军海军大连舰艇学院军事海洋与测绘系 stone333@tom.com 
韩卫通 中国人民解放军海军大连舰艇学院学员五大队  
康力朝 中国人民解放军海军大连舰艇学院学员五大队  
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中文摘要:
      本文调查了“威马逊”台风过境时东海黑潮对台风的响应特征,以海面高度异常(Sea Level Anomaly, SLA)和摩擦深度作为主要研究因子,利用艾克曼风生海流理论,得出了在“威马逊”台风过程中东海黑潮附近海域尤其是宫古海峡处的SLA值和摩擦深度的响应特征。即随着台风路径逐渐靠近东海黑潮的过程,表层流场受台风影响呈气旋式分布,东海黑潮附近海域SLA值迅速降低,尤其是在宫古海峡附近形成一个SLA的负极值区。理论简易模型进一步验证了SLA降低是由于风场作用产生的表面海水辐散导致的。
英文摘要:
      This study investigates the response characteristics of the Kuroshio in the East China Sea to the typhoon Wilson during it passing through. Sea Level Anomaly (SLA) is the main factor for analyzing the response characteristics. The response characteristics of the SLA and the friction depth in the Kuroshio area, especially in the Miyako Strait, are gain by using the Ekman wind-induced current theory during the typhoon Wilson passing through. As the typhoon gradually approaches the Kuroshio in the East China Sea, the surface flow is distributed by the typhoon, and the SLA in the sea in the Kuroshio is rapidly decreasing, especially in the Miyako Strait. The theoretical simple model verifies that the reduction of SLA is caused by the divergence of seawater caused by the surface wind.
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