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Warm water wake off northeast Vietnam in the South China Sea

期刊名称：Acta Oceanaol. Sin.
时间：2014
页码：55-63
分类：P425.42[天文地球—大气科学及气象学] P722.7[天文地球—海洋科学]
作者机构：[1]College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China, [2]State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China
相关基金：Foundation item： The Distinguished Young Scholars of National Natural Science Foundation of China under contract Nos 41125019 and 41306024; the National Basic Research Program （973 Program） of China under contract No. 2013CB430301; the Basic Scientific Research Fund of Second Institute of Oceanography, State Oceanic Administration under contract No. IT1301; the National Natural Science Foundation under contract No. 41476002.Acknowledgements The authors thank Wang Guihua for his assistance. Thanks also go to AVISO, NOAA, and NCDC for providing the data used in this paper. The authors are grateful to the two anonymous re- viewers who have helped in improving the manuscript consider- ably.
相关项目：物理海洋学:南海海盆尺度环流-中尺度涡相互作用研究

关键词：东亚冬季风, 年际变化, 吕宋岛, 西部, 北半球, 奇异值分解, 厄尔尼诺, 风应力旋度, thermal front, interannual variability, Luzon Island, ENSO, South China Sea

中文摘要：

吕宋岛岛的热前面西方的 Interannual 可变性在这份报纸与单个价值分解(SVD ) 和卫星大小的一间套房的方法在 19932013 的冬季期间被检验。吕宋岛岛的热前面西方的区域和紧张显示出明显的 interannual 可变性，这被发现。进一步的学习高度基于热前面的 interannual 可变性是的 SVD 表演把 Ni 与 El 联系了 ? o 和南部的摆动，和在 Ni 之间的关联系数(ENSO )? o3.4 索引和热前面的第一个主要部件(PC1 ) 装 reach0.65。机制能如下被描述。在 El Ni ? o ( La Ni ?一)年，东方亚洲冬季季风( EAWM )被削弱(提高)，导致更弱(更强壮)吕宋岛岛的本地风压力卷屈( WSC )西方，并且导致变弱(提高)吕宋岛冷旋涡，它最后导致变弱(改进)热前面。

英文摘要：

Interannual variability of thermal front west of Luzon Island during the winter of 1993-2013 is examined with the method of singular value decomposition （SVD） and a suite of satellite measurements in this paper. It is found that both the area and intensity of the thermal front west of Luzon Island show apparent interannual variability. Further study based on SVD shows that the interannual variability of the thermal front is highly associated with E1 Nifio and Southern Oscillation （ENSO）, and the correlation coefficient between Nifio3.4 index and the first Principal Component （PC1） of thermal front can reach -0.65. The mechanism can be described as follows. In E1 Nifio （La Nifia） years, the East Asian winter monsoon （EAWM） is weakened （enhanced）, inducing weaker （stronger） local wind stress curl （WSC） west of Luzon Island, and resulting in weakened （enhanced） Luzon cold eddy, which finally leads to the weakening （enhancement） of the thermal front.

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