Discordant multi-decadal trend in the intensity of the Kuroshio along its path during 1993–2013

You Lin Wang, Chau Ron Wu

研究成果: 雜誌貢獻文章

2 引文 斯高帕斯(Scopus)

摘要

The Kuroshio transports warm water in the Pacific poleward from the tropics and plays a crucial role in modulating surrounding climate. Based on independent data sets, we demonstrated that the Kuroshio weakened downstream east of Taiwan, but intensified upstream east of Luzon Island during 1993–2013. The surface velocity (volume transport) of the Kuroshio has decreased 12.5% (4~5%) off east Taiwan but increased 18% (8~18%) off east Luzon. The discordant upstream–downstream trend was attributable to changes in oceanic eddies and basin surface winds: greater (lesser) cyclonic eddies, lesser (greater) anticyclonic eddies, and positive (negative) tendency in the Pacific Basin wind curl contributed to a weakened (intensified) downstream (upstream) Kuroshio. The difference in water mass between the upstream and downstream Kuroshio was balanced by an anomalous eastward flow, the southern branch of the Subtropical Counter Current which was enhanced and evacuated the redundant water eastward into the Pacific.

原文英語
文章編號14633
期刊Scientific Reports
8
發行號1
DOIs
出版狀態已發佈 - 2018 十二月 1

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ASJC Scopus subject areas

  • General

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