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首页> 外文期刊>Ocean Science Journal >Tidal transport through the Tsugaru Strait — part I: Characteristics of the major tidal flow and its residual current
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Tidal transport through the Tsugaru Strait — part I: Characteristics of the major tidal flow and its residual current

机译：穿越津轻海峡的潮汐运输—第一部分：主要潮汐流及其剩余流的特征

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摘要

The potential role of the tide-induced time-mean flow (the tidal residual current) in determining transport through the Tsugaru Strait (located between the East/Japan Sea and the North Pacific) is investigated using a high-resolution numerical barotropic model. The calculated K1, O1, M2, and S2 tidal fields agree well with available observational records derived from both tide gauge and current meter measurements in the strait and the adjacent seas. The tidal residual current speed reaches 0.3 ms−1 in two narrow “neck” areas where topographic sills are located. This result suggests that tides should be taken into account in estimating the long-term water mass and nutrient transport through narrow regions between the East/Japan Sea and the North Pacific. An interesting aspect of the tidal residual current field is the prediction of several active eddy zones in which sequences of eddy triplets develop in the vicinity of capes. Our vorticity analysis reveals that the interplay of topographic effects arising from both the headland and the sill around capes plays a critical role in the formation of these triple eddy patterns.
机译：使用高分辨率数值正压模型研究了潮汐引起的时均流量（潮汐剩余电流）在确定通过津轻海峡（位于东/日本海和北太平洋之间）的运输中的潜在作用。计算得出的K 1 ，O 1 ，M 2 和S 2 潮汐场与可用的观测记录非常吻合从海峡和邻近海域的潮汐仪和海流仪测量中得出。在地形基石所在的两个狭窄“颈部”区域，潮汐剩余电流速度达到0.3 ms -1 。该结果表明，在估算东/日本海与北太平洋之间狭窄区域的长期水量和营养物输送时，应考虑潮汐。潮汐剩余电流场的一个有趣方面是预测几个活跃的涡流带，在这些活跃的涡流带中，三角形序列在海角附近形成。我们的涡度分析表明，由岬角和海角周围的坎ill引起的地形影响相互影响，在形成三重涡旋模式中起着至关重要的作用。

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