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Title: Intra-seasonal Variation of the Kuroshio southeast of Taiwan and its possible forcing mechanism
Authors: 國立臺灣師範大學海洋環境科技研究所
Hsin, Y.-C.
T. Qu
C.-R. Wu
Issue Date: 1-Oct-2010
Publisher: Springer-Verlag
Abstract: The intra-seasonal variation of the Kuroshio southeast of Taiwan has been studied using satellite data and a numerical model. Superimposed with the main stream of the Kuroshio, two intra-seasonal signals are revealed in the study region. The fluctuation with a period of 1–6 months results from offshore eddies. The westward propagating cyclonic eddies can reduce or reverse the northward flow east of the Kuroshio between 121° and 123° E, but only slightly touch the core velocity of the Kuroshio. The fluctuation with a period of 2–4 weeks is only significant between Taiwan and the Lan-Yu Island (the low-velocity region). Different mechanisms are responsible for the fluctuation in the low-velocity region in different seasons. In winter, the change of negative wind stress curl in the northeastern South China Sea modulates the circulation southeast of Taiwan, while the typhoon-induced intense wind is responsible for the current fluctuation in summer.
ISSN: 1616-7341
Other Identifiers: ntnulib_tp_C1001_01_023
Appears in Collections:教師著作

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