A case study of a Kuroshio main path cut-off event and impacts on the South China Sea in fall-winter 2013–2014

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英文篇名：A case study of a Kuroshio main path cut-off event and impacts on the South China Sea in fall-winter 2013–2014 作者：Quanan ; Zheng ; Chung-Ru ; Ho ; Lingling ; Xie ; Mingming ; Li 英文作者：Quanan Zheng;Chung-Ru Ho;Lingling Xie;Mingming Li;Department of Atmospheric and Oceanic Science,University of Maryland;Guangdong Key Laboratory of Coastal Ocean Variability and Disaster Prediction,Guangdong Ocean University;Department of Marine Environmental Informatics,National Taiwan Ocean University; 英文关键词：KMP cut-off event;;eddy kinetic energy;;dynamic criterion;;South China Sea 中文刊名：SEAE 英文刊名：海洋学报(英文版) 机构：Department of Atmospheric and Oceanic Science,University of Maryland;Guangdong Key Laboratory of Coastal Ocean Variability and Disaster Prediction,Guangdong Ocean University;Department of Marine Environmental Informatics,National Taiwan Ocean University; 出版日期：2019-04-15 出版单位：Acta Oceanologica Sinica 年：2019 期：v.38 基金：The National Natural Science Foundation of China under contract No.41776034;; the Ministry of Science and Technology of Taiwan under contract Nos MOST 105-2611-M-019-001 and MOST 106-2611-M-019-015;; the GASI Project under contract Nos GASI-IPOVAI-01-02 and GASI-02-SCS-YGST2-02;; the Foundation of Guangdong Province for Outstanding Young Teachers in University under contract No.YQ201588 语种：英文; 页：SEAE201904002 页数：8 CN：04 ISSN：11-2056/P 分类号：16-23

摘要

This study examines a Kuroshio main path(KMP) cut-off event east of Taiwan Island occurred in fall-winter2013–2014 and its impacts on the South China Sea(SCS) by analyzing satellite altimetry and mooring observations. Satellite altimeter sea level anomaly(SLA) images reveal a complete process that a huge cyclonic eddy(CE) from the Pacific collided with the Kuroshio and the western boundary from 15 October 2013 to 15 January 2014. Mooring observations evidenced that the Kuroshio upper ocean volume transport was cut off more than 82% from 17×106 m~3/s in September to 3×106 m~3/s in November 2013. The KMP cut-off event caused the Kuroshio branching and intruding into the SCS and strengthened the eddy kinetic energy in the northern SCS west of the Luzon Strait. Using the total momentum as a dynamic criterion to determine the role of eddy collision with the Kuroshio reasonably explains the KMP cut-off event.
        This study examines a Kuroshio main path(KMP) cut-off event east of Taiwan Island occurred in fall-winter2013–2014 and its impacts on the South China Sea(SCS) by analyzing satellite altimetry and mooring observations. Satellite altimeter sea level anomaly(SLA) images reveal a complete process that a huge cyclonic eddy(CE) from the Pacific collided with the Kuroshio and the western boundary from 15 October 2013 to 15 January 2014. Mooring observations evidenced that the Kuroshio upper ocean volume transport was cut off more than 82% from 17×106 m~3/s in September to 3×106 m~3/s in November 2013. The KMP cut-off event caused the Kuroshio branching and intruding into the SCS and strengthened the eddy kinetic energy in the northern SCS west of the Luzon Strait. Using the total momentum as a dynamic criterion to determine the role of eddy collision with the Kuroshio reasonably explains the KMP cut-off event.

引文

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