Volume transport in the Soya Strait during 2006?008

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• 作者：Yasushi Fukamachi ; Kay I. Ohshima ; Naoto Ebuchi ; Tadao Bando ; Kazuya Ono and Minoru Sano
• 关键词：Volume transport ; Soya Strait ; Soya Warm Current ; seasonal and interannual variability ; acoustic Doppler current profiler ; ocean radar
• 刊名：Journal of Oceanography
• 出版年：2010
• 出版时间：October 2010
• 年：2010
• 卷：66
• 期：5
• 页码：685-696
• 全文大小：609.3 KB

文摘

Time-series data of the vertical structure of the Soya Warm Current (SWC) were obtained by a bottom-mounted acoustic Doppler current profiler (ADCP) in the middle of the Soya Strait from September 2006 to July 2008. The site of the ADCP measurement was within the coverage of the ocean-radar measurement around the strait. The volume transport of the SWC through the strait is estimated on the basis of both the vertical structure observed by the ADCP and the horizontal structure observed by the radars for the first time. The annual transport estimates are 0.62–0.67 Sv (1 Sv = 106 m3s−1). They are somewhat smaller than the difference between the previous estimates of the inflow and outflow through other straits in the Sea of Japan, and smaller than those obtained in the region downstream of the strait during 2004–05 (0.94–1.04 Sv). The difference in the two periods may be attributed to interannual variability of the SWC and/or the different measurement locations.