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利用二维全流水动力方程组 ,在考虑了海面风应力、潮余流和开边界入流等条件下 ,首次模拟出了石岛附近的中尺度反气旋式涡旋海水运动 ,并对南黄海西部冬季环流的特征作了初步探讨。数值模拟结果和实测吻合良好 ,数值模拟表明 :冬季南黄海西部环流形式主要决定因子是海面风应力、潮余流及从开边界的流入 (出 )该海域的黄海暖流及黄海沿岸流。黄海暖流在偏北风作用下沿西北方向可直达山东半岛近岸 ,后分为两支 :一支向南汇入黄海沿岸流流出 ,另一支北上并与黄海沿岸流相配合 ,在石岛附近形成一个中尺度反气旋式涡旋。
Under the conditions of sea surface wind stress, tide residual flow and open boundary inflow, the mesoscale anticyclone vortex seawater movement near Shidao Island was simulated for the first time by using two-dimensional full hydrodynamic equations. The characteristics of winter circulation made a preliminary discussion. The results of numerical simulation are in good agreement with the measured data. Numerical simulation shows that the main determinants of the circulation pattern in the western South Yellow Sea in winter are the sea surface wind stress, the tide residual flow and the inflow (outflow) of the Yellow Sea warm current and the Yellow Sea coast flow from the open boundary. Under the action of the north wind, the warm current of the Yellow Sea can go straight to the coast of Shandong Peninsula in the northwest direction and divide into two branches: one flows southward into the Yellow Sea and the other goes northward and cooperates with the Yellow Sea coast flow. The formation of a mesoscale anti-cyclonic vortex.