Distortion and broadening of internal solitary wavefront in the northeastern South China Sea deep basin
Distortion and broadening of internal solitary wavefront in the northeastern South China Sea deep basin
复制标题
南海东北部深盆内孤立波前畸变与展宽
DOI：
10.1002/2016gl070093
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发表时间：
2016-07
影响因子：
5.2
通讯作者：
Cai Shuqun
中科院分区：
文献类型：
--
作者：
Xie Jieshuo;He Yinghui;Lue Haibin;Chen Zhiwu;Xu Jiexin;Cai Shuqun
Internal solitary waves (ISWs) with peculiar fronts are frequently observed in the world ocean by satellite images, though with quite few explanations. In this study a distorted and broadening ISW front across the northeastern South China Sea deep basin is presented by using synthetic aperture radar (SAR) image. To illustrate this peculiar front, a nonlinear refraction model is developed to simulate and evaluate the effects of realistic bottom topography, current, and stratification on its transformation. Simulated results in realistic oceanic environments show good agreements with this SAR‐observed front. Based on separate and comparative results in different background environments, we demonstrate that the distortion is actually caused by the strong mesoscale currents at periphery of an anticyclonic eddy. Moreover, the broadening is due to the difference in change of wave half width at different rays, which is associated with the different transformation of ISWs across variable bottom topography in the deep basin.
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影响因子：
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作者：
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通讯作者：
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