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Coastal up- and downwelling in the southern Baltic

机译：波罗的海南部沿海上涌和下涌

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A three-dimensional hydrodynamic model was used to determine 12 zones of up- and downwelling in the southern part of the Baltic Sea. On the basis of a seven-year numerical simulation, the annual frequency of up- and downwelling events in various regions was analysed, their vertical velocity evaluated and the probability of their occurrence for different wind directions calculated. Verification of the model results demonstrated their good correspondence with satellite images, on average equal to 92%. The poorest consistency was recorded for upwelling in the Bornholm region (81%). The annual average frequency of strong upwelling (velocities >10-4 m s-1) ranged from c. 5-7% off the eastern coasts of the southern Baltic to >31% along the north-eastern coast of Bornholm. Along the Polish coast (excepting the Vistula Spit) downwelling was recorded more frequently than upwelling. The frequency of strong vertical currents was highest in the area to the north of the Hel Peninsula, where high percentages of strong upwelling (27.1%) and downwelling (37.1%) were recorded.
机译：使用三维水动力模型来确定波罗的海南部的12个上，下涌区。在为期七年的数值模拟的基础上，分析了各个地区上，下涌事件的年发生频率，评估了它们的垂直速度，并计算了在不同风向的发生概率。对模型结果的验证表明它们与卫星图像具有良好的对应关系，平均等于92％。博恩霍尔姆地区的上升趋势记录最差（81％）。强上升流（速度> 10-4 m s-1）的年平均频率范围为c。从波罗的海南部东部海岸降落5-7％，在博恩霍尔姆东北海岸降落> 31％。沿波兰海岸（维斯瓦河喷口除外）记录的下沉比上涌更频繁。在Hel半岛北部地区，垂直强电流的频率最高，记录到高强度上升流（27.1％）和下降流（37.1％）的百分比很高。

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