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首页> 外文期刊>Scientific reports. >An extreme internal solitary wave event observed in the northern South China Sea
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An extreme internal solitary wave event observed in the northern South China Sea

机译：在南海北部观察到极端内部孤立波事件

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摘要

With characteristics of large amplitude and strong current, internal solitary wave (ISW) is a major hazard to marine engineering and submarine navigation; it also has significant impacts on marine ecosystems and fishery activity. Among the world oceans, ISWs are particular active in the northern South China Sea (SCS). In this spirit, the SCS Internal Wave Experiment has been conducted since March 2010 using subsurface mooring array. Here, we report an extreme ISW captured on 4 December 2013 with a maximum amplitude of 240?m and a peak westward current velocity of 2.55?m/s. To the authors’ best knowledge, this is the strongest ISW of the world oceans on record. Full-depth measurements also revealed notable impacts of the extreme ISW on deep-ocean currents and thermal structures. Concurrent mooring measurements near Batan Island showed that the powerful semidiurnal internal tide generation in the Luzon Strait was likely responsible for the occurrence of the extreme ISW event. Based on the HYCOM data-assimilation product, we speculate that the strong stratification around Batan Island related to the strengthening Kuroshio may have contributed to the formation of the extreme ISW.
机译：具有大幅度和强电流的特点，内部孤波（ISW）是海洋工程和潜艇导航的重大危害;它对海洋生态系统和渔业活动产生了重大影响。在世界海洋中，ISWS在南海（SCS）中特别活跃。在这种精神下，自2010年3月使用地下系泊阵列以来，SCS内部波实验已经进行。在这里，我们在2013年12月4日之前报告了极端isW，最大幅度为240？m，峰值向西当前速度为2.55？m / s。为了提交人的最佳知识，这是世界上最强大的思想。全深度测量亦显示出极端isW在深海电流和热结构上的显着影响。 Batan Island附近的并发系泊测量显示，吕宋海峡的强大内部潮流发电可能负责极端isw活动的发生。基于喀克斯数据同化产品，我们推测推测与加强金寿有关的巴坦岛周围的强烈分层可能导致形成极端isw。

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