Statistical characteristics and formation mechanism of the Lanyu cold eddy

Statistical characteristics and formation mechanism of the Lanyu cold eddy
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兰屿冷涡统计特征及形成机制

DOI:
10.1007/s10872-016-0361-5
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发表时间:
2016-02
影响因子:
2.3
通讯作者:
Gu YZ
Gu YZ
中科院分区:
地球科学4区
文献类型:
--
作者:
Sun Ruili;Gao Guoping;Sun Ruili;Gu Yanzhen;Gu Yanzhen;Li Peiliang;Li Lei;Zhai Fangguo;Gu YZ;Gu YZ

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利用1993 - 2013年的卫星资料,分析了兰屿冷涡的统计特征和形成机制。本文首次给出了兰屿冷涡的统计特征。结果发现,兰屿冷涡共出现7次,其移动方向大致由东南向西北,并在接近台湾岛时逐渐减弱。其次,我们估计了涡流的寿命、直径、强度和直线传播距离。海面高度距平和地转流的综合分析表明,兰屿冷涡的形成主要是黑潮环流和兰屿以东的一个反气旋性涡旋共同作用的结果。因此,我们的研究为我们理解兰屿冷涡的形成机制提供了一个新的视角。
The statistical characteristics and formation mechanism of the Lanyu cold eddy were examined using satellite data from 1993 to 2013. The statistical characteristics of the Lanyu cold eddy in this paper are given for the first time to the best of our knowledge. It is found that Lanyu cold eddies occurred seven times in total during the period examined, and that this eddy generally moves from southeast to northwest and gradually decays when it approaches the island of Taiwan. Next, we estimated the eddy lifetime, diameter, strength and straight line travel distance. Composite analyses of sea surface height anomaly and geostrophic current demonstrate that the formation of the Lanyu cold eddy mainly results from the combined action of the Kuroshio loop and an anticyclonic eddy east of Lanyu Island. Thus, our study provides a new insight into our understanding of the formation mechanism of the Lanyu cold eddy.
DOI: 10.1029/1999jc900323
发表时间: 2000-03-15
影响因子: 3.6
作者:
Qu, T;Mitsudera, H;Yamagata, T
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