2011年8月25日
Strong vertical mixing in the Urup Strait
Geophysical Research Letters
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- 巻
- 38
- 号
- 16
- 開始ページ
- n/a
- 終了ページ
- n/a
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1029/2011gl048507
- 出版者・発行元
- American Geophysical Union (AGU)
Microstructure measurements were conducted in one of the Kuril Straits in the summer of 2007. Over the course of 1 day of repeated observations across the Pacific side of the steep sill of the Urup Strait, extremely strong mixing was observed during periods of Pacific-ward (down-sill) flows and during the transition from Pacific-ward to Okhotskward (up-sill) flows, with a turbulent energy dissipation rate epsilon of 10(-6) to 10(-5) W kg(-1) and vertical diffusivity of 10(-1) to 5 x 10(-1) m(2) s(-1). During the period of strong mixing, we observed homogeneous layers with a thickness of 300-600 m and potential density of 26.6-26.7 sigma(theta), occupying the entire water column in one case. High values of epsilon within this layer indicate the injection of diapycnal flows from the upper and lower layers, possibly contributing to southward intrusion of intermediate water into the subtropical gyre. Citation: Itoh, S., I. Yasuda, M. Yagi, S. Osafune, H. Kaneko, J. Nishioka, T. Nakatsuka, and Y. N. Volkov (2011), Strong vertical mixing in the Urup Strait, Geophys. Res. Lett., 38, L16607, doi:10.1029/2011GL048507.
- リンク情報
- ID情報
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- DOI : 10.1029/2011gl048507
- ISSN : 0094-8276
- Web of Science ID : WOS:000294368100003