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The role of coastal-trapped waves on the 2008 cold disaster in the Taiwan Strait

机译：沿海海浪对台湾海峡2008年冷灾的作用

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摘要

In early 2008, cold water in the Taiwan Strait (TWS) was moved sequentially by a cross-strait flow and a southward flow to the Penghu Island, causing a cold-related fish kill disaster. Except for the local wind forcing, the coastal-trapped waves (CTWs), intermittently propagating toward the TWS from north in winter, are an additional factor that could impact the flow patterns by changing cross-strait sea-level gradient during the disaster. In the first stage (January 28-February 7), the reach of a large CTW trough induced an additional northward flow, which formed a cyclone after turning around the Zhangyun Ridge. Then, the cyclone led to an additional cross flow, which enhanced an eastward (offshore) movement of cold water. In the second stage (February 7-14), the arrival of a large CTW crest triggered an additional southward flow, which intensified a southward movement of the cold water. Due to the additional eastward and southward movements caused by the CTWs, the cold water could reach Penghu Island inducing a cold disaster.
机译：2008年初，台湾海峡（TWS）的冷水因两岸海流和向南流向澎湖岛转移，造成了与寒冷有关的鱼类致死性灾难。除了当地的强风作用外，冬季时从北向北间歇性地向TWS传播的沿海滞留海浪（CTW）是可能在灾难期间通过改变两岸海平面梯度来影响流型的另一个因素。在第一阶段（1月28日至2月7日），一个较大的CTW谷的到达引起了额外的北流，在绕过张云岭后形成了一个旋风。然后，旋风导致额外的横流，这增强了冷水向东（近海）的运动。在第二阶段（2月7-14日），一个大型CTW波峰的到来触发了额外的向南流动，这加剧了冷水的向南运动。由于CTW引起的额外的向东和向南运动，冷水可能到达澎湖岛，引发了一场冷灾。

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  • 来源
    《Ocean Dynamics》 |2017年第5期|611-619|共9页
  • 作者

    Liao Enhui; Yan Xiao-Hai; Jiang Yuwu;

  • 作者单位

    Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China|Univ Delaware, Coll Earth Ocean & Environm, Newark, DE 19716 USA;

    Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China|Univ Delaware, Coll Earth Ocean & Environm, Newark, DE 19716 USA;

    Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Coastal-trapped waves; Taiwan Strait; Circulation; Cold disaster;

    机译：沿海海浪台湾海峡环流冷灾;

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