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首页> 外文期刊>Journal of oceanography >Diurnal shelf waves off Hamada on San'in Coast
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Diurnal shelf waves off Hamada on San'in Coast

机译:日架在San'in海岸的Hamada上空摇曳

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The tidal current data observed off Hamada on San'in coast have shown the diurnal tidal currents to be larger than the semidiurnal ones by a factor of 5–8, although the ratio (K1+O1)/(M2+S2) for the tidal heights at Hamada is 1.3. Furthermore, the diurnal currents are found to be more remarkable on the shelf slope than on the shelf. We consider such diurnal current features as being due to the vortical mode waves, and show that the broad shelf and steep shelf slope off San'in coast allow 1st-mode interior shelf waves (ISWs) at a diurnal-period. Using a simple shelf model, it is shown that ISWs occur in response to the seaward component of diurnal tidal oscillations on the shelf and their propagation originates from the western entrance of the Tsushima Straits.
机译:San'in海岸滨田附近观测到的潮流数据显示,尽管潮汐的比率(K1 + O1)/(M2 + S2),但每日的潮流比半昼夜的潮流大5-8倍。滨田的最高高度是1.3。此外,发现在架子斜面上的昼夜电流比在架子上的昼夜电流更显着。我们认为这种日流特征是由于涡旋模波引起的,并表明,San'in海岸的宽陆架和陡峭的陆架坡度允许在日周期内出现第一模态内部陆架波(ISW)。使用简单的架子模型,表明ISW响应架子上昼夜潮汐振荡的海向分量而发生,其传播源自对马海峡的西侧入口。

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