Sudden strong current generated by an eddy in the eastern part of Wakasa Bay, Japan

Sudden strong current generated by an eddy in the eastern part of Wakasa Bay, Japan
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日本若狭湾东部因涡流突然产生强流

DOI:
10.1007/s10872-016-0395-8
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发表时间:
2017
影响因子:
2.3
通讯作者:
Tatsuro Watanabe
Tatsuro Watanabe
中科院分区:
地球科学4区
文献类型:
--
作者:
Atsushi Kaneda;Kouta Ayukawa;Naoki Hirose;Jun Tsuzuki;Yutaka Kumaki;Tomoharu Senjyu;Yosuke Igeta;Tatsuro Watanabe

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2013年8月,日本若狭湾东部沿海沃茨发生了被称为“kyucho”的突发性强沿岸流。本研究根据密集的实地调查收集的观测数据和数值模式的模拟结果,研究了其特征。实地调查包括在海岸附近的系泊浮标观测以及研究船和渔船的航行。系泊观测表明,在海湾东海岸附近突然出现了超过50 cm s-1的流速,这与水流方向的同步变化有关。安装在船上的声学多普勒海流剖面仪(ACDP)收集的数据表明,海湾中存在一个顺时针方向的涡流,涡流东侧的海流在海岸附近产生了kyucho。根据数值模式的结果和ADCP资料的分析,认为顺时针涡旋是由位于海湾西部的Tango半岛尖端的强流产生的。随着涡旋自西向东横穿海湾,在海湾东部沿岸沃茨诱发了九龙江。
A sudden strong coastal current called a “kyucho” occurred in August 2013 in the eastern coastal waters of Wakasa Bay, Japan. This study examined its characteristics based on both observational data collected by intensive field investigations and the simulation results of a numerical model. The field investigations comprised moored buoy observations near the coast and voyages by a research vessels and fishing boats. The mooring observations indicated that a current speed exceeding 50 cm s−1occurred abruptly near the eastern coast of the bay, in association with a synchronous change in the current direction. Data collected by acoustic Doppler current profilers (ACDPs) mounted on the vessels showed that a clockwise eddy existed in the bay and that the current on the east side of the eddy generated the kyucho near the coast. Based on the results of the numerical model and the analysis of the ADCP data, it was considered that the clockwise eddy was generated by a strong current at the tip of the Tango Peninsula, in the western part of the bay. As the eddy propagated from west to east across the bay, it induced the kyucho in the coastal waters in the east of the bay.
DOI: --
发表时间: 2007
期刊: Journal of Oceanography 63
影响因子: --
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DOI: 10.1175/jpo2742.1
发表时间: 2005-06-01
影响因子: 3.5
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通讯作者: Cho, KD
日本海若狭湾的水流模式。
DOI: --
发表时间: 1997
期刊: --
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Wada Yozo;Yamada Haruya
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