論文

査読有り
2017年2月

Short-term flow fluctuations in Onagawa Bay, Japan, as revealed by long-term mooring observation

JOURNAL OF OCEANOGRAPHY
  • Daisuke Takahashi
  • ,
  • Kenji Kaneko
  • ,
  • Yasushi Gomi
  • ,
  • Yuki Minegishi
  • ,
  • Michihiro Shoji
  • ,
  • Hikaru Endo
  • ,
  • Akihiro Kijima

73
1
開始ページ
67
終了ページ
86
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s10872-016-0360-6
出版者・発行元
SPRINGER

Short-term flow fluctuations in the southern central part of Onagawa Bay were examined using long-term mooring and hydrographic data observed during the period from May 2013 to April 2014. The short-term flow fluctuations were dominant in the periodic bands of 15-27 days and shorter than 10 days. The principal and minor components of these flow fluctuations were respectively along and across the local isobaths, which are almost parallel in the north direction. The northward flow fluctuations along the local isobaths were correlated with the northeastward wind fluctuations in both periodic bands, and these correlations were more evident from fall to winter. On the basis of these results, the northward flows are regarded as wind-induced barotropic coastal jets. On other hand, the eastward flow fluctuations across the local isobaths were related to inflow and outflow via the bay mouth or the Izushima Channel. Inflow and outflow with reverse flow at lower depths formed in summer, but those with vertically uniform flow tended to form in winter. The main summertime inflow and outflow were driven by horizontal gradients in density. These permit us to regard the main summertime inflow and outflow as gravitational circulation. Also, the summertime inflow can be intermittently caused by internal waves.


リンク情報
DOI
https://doi.org/10.1007/s10872-016-0360-6
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000392943800006&DestApp=WOS_CPL
ID情報
  • DOI : 10.1007/s10872-016-0360-6
  • ISSN : 0916-8370
  • eISSN : 1573-868X
  • Web of Science ID : WOS:000392943800006

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