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Structure and dynamics of the sudden acceleration of Kuroshio off Cape Shionomisaki

机译：黑潮在盐崎岬附近突然加速的结构和动力学

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A sudden acceleration of the Kuroshio jet appears off Cape Shionomisaki in the high-resolution (horizontal resolution of 1/36°) JCOPE 2 ocean reanalysis data. Using this dataset, we investigated the structure of the Kuroshio acceleration. The increase in the velocity of the current is accompanied by a downstream flow separation from the coast and an outcrop of cold temperature inshore. The acceleration of Kuroshio appears when it takes a near-shore path. Cape Shionomisaki amplifies the responses to the Kuroshio flow by creating the zonal velocity acceleration toward the downstream region when the Kuroshio flows closer to the coast. The Kuroshio acceleration coincided with the topographic ridge on the continental shelf near Cape Shionomisaki. This relation suggests that the dynamics of the acceleration is linked to the topographic feature. We proposed an explanation of the Kuroshio acceleration using a hydraulic control theory. An analytical solution was applied to the coastal topography around the Kii Peninsula. The solution captured some aspects of the Kuroshio acceleration.
机译：在高分辨率（水平分辨率为1/36°）JCOPE 2海洋再分析数据中，盐崎岬附近出现了黑潮喷射器的突然加速。使用该数据集，我们研究了黑潮加速度的结构。流速的增加伴随着下游与海岸的水流分离和近岸的低温露头。黑潮的加速会在走近岸道路时出现。当黑潮流向海岸更近时，盐崎岬角通过产生朝向下游区域的纬向速度加速度来放大对黑潮流的响应。黑潮的加速与盐崎岬附近大陆架上的地形脊相吻合。这种关系表明加速度的动力学与地形特征有关。我们提出了使用液压控制理论对黑潮加速器的解释。分析解决方案应用于基伊半岛周围的沿海地形。该解决方案涵盖了黑潮加速的某些方面。

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