| 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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| 作者姓名： | 郑全安 何宗儒 谢玲玲 李明明 |
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| 作者单位： | 马里兰大学 大气与海洋科学系, 科利奇帕克, 马里兰 20742;广东省近海海洋变化与灾害预警重点实验室, 广东海洋大学, 湛江 524088,台湾海洋大学 海洋环境资讯系, 基隆 20224,广东省近海海洋变化与灾害预警重点实验室, 广东海洋大学, 湛江 524088,广东省近海海洋变化与灾害预警重点实验室, 广东海洋大学, 湛江 524088 |
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| 基金项目： | 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. |
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| 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.
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| 关 键 词： | 黑潮主轴断流事件 涡动能 动力学判据 南海 |
| 收稿时间： | 2018-02-09 |
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