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首页> 外文期刊>Journal of oceanography >Seasonal Variations of Water System Distribution and Flow Patterns in the Southern Sea Area of Hokkaido, Japan
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Seasonal Variations of Water System Distribution and Flow Patterns in the Southern Sea Area of Hokkaido, Japan

机译：日本北海道南部海域水系统分布和流量模式的季节性变化

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摘要

Hydrographic data and composite current velocity data (ADCP and GEK) were used to examine the seasonal variations of upper-ocean flow in the southern sea area of Hokkaido, which includes the "off-Doto" and "Hidaka Bay" areas separated by Cape Erimo. During the heating season (April-September), the outflow of the Tsugaru Warm Current (TWC) from the Tsugaru Strait first extends north-eastward, and then one branch of TWC turns to the west along the shelf slope after it approaches the Hidaka Shelf. The main flow of TWC evolves continuously, extending eastward as far as the area off Cape Erimo. In the late cooling season (January-March), part of the Oyashio enters Hidaka Bay along the shallower part of the shelf slope through the area off Cape Erimo, replacing almost all of the TWC water, and hence the TWC devolves. It is suggested that the bottom-controlled barotropic flow of the Oyashio, which may be caused by the small density difference between the Oyashio and the TWC waters and the southward migration of main front of TWC, permits the Oyashio water to intrude along the Hidaka shelf slope.
机译：使用水文数据和复合流速数据（ADCP和GEK）检查北海道南部海域上层洋流的季节变化，其中包括被埃里莫角分开的“道多”和“日高湾”地区。在供暖季节（4月至9月），津轻海峡（津轻海流）从津轻海峡流出，首先向东北延伸，然后，一股TWC分支在到达日高陆架后沿架子坡向西转向。 。 TWC的主要水流不断演化，向东延伸至埃里莫角附近地区。在冷却末期（1月至3月），Oyashio的一部分沿着架子斜坡的较浅部分穿过埃里莫角附近的区域进入日高湾，从而取代了几乎所有的TWC水，因此TWC发生了旋转。有人认为，由于尾潮与TWC水之间的密度差较小以及TWC的主锋向南迁移，可能导致了尾潮的底部控制正压流动，使得尾潮水沿着日高陆架侵入。坡。

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