Variations in turbulent energy dissipation and water column stratification at the entrance of a tidally energetic strait

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概要

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• We observed tidal currents, turbulent energy dissipation and water column stratification at the entrance of a narrow strait (Neko Seto) in the Seto Inland Sea, Japan, using a free-falling turbulent microstructure profiler (TurboMAP) and acoustic Doppler current profiler (ADCP). The variation in turbulent energy dissipation at the entrance of the strait was not at quarter-diurnal frequency but at semi-diurnal frequency; turbulent energy dissipation was enhanced during the ebb tide, although it was moderate during the flood tide. This result is consistent with the results of Takasugi (1993), which showed the asymmetry of tidal energy loss during a semidiurnal tidal cycle using control volume analysis. It is suggested that significant turbulent energy dissipation is generated in the strait, which influences the properties of water outside the strait when tidal currents flow out from the strait.

• Oceanographic Society of Japanの論文
• 2009-10-01

著者

• Takasugi Y

  Chugoku National Industrial Research Institute

• Nagao Masayuki

  National Institute Of Advanced Industrial Science And Technology (aist Tsukuba)

• KABAYASHI SHIHO

  Graduate School of Agriculture, Kyoto University

• HASHIMOTO EISUKE

  National Institute of Advanced Industrial Science and Technology (AIST Chugoku)

• TAKASUGI YOSHIO

  National Institute of Advanced Industrial Science and Technology (AIST Chugoku)

• Kabayashi Shiho

  Graduate School Of Agriculture Kyoto University

• Kobayashi Shiho

  Graduate School of Agriculture, Kyoto University

関連論文

• Diurnal Cycle of Sound Scatterers and Measurements of Turbidity Using ADCP in Beppu Bay
• Variations in turbulent energy dissipation and water column stratification at the entrance of a tidally energetic strait

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