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笔者基于一种三维斜压浅海Lagrange余流的弱非线性理论,湍粘性系数的处理引进了Richardson数,利用流速分解法,把作为强迫力的潮汐、风和热盐统一在一个模型中,考虑了黄海暖流余脉和黄河径流的影响,诊断计算并获得了渤海三维风生-热盐-潮致Lagrange余环流。同时,给出了潮致Lagrange余环流、风生环流和热盐环流,并且做了比较和分析。对渤海Lagrange余环流的三个主要涡旋形成机制进行了初步的探讨。最后,用实测资料对计算结果进行了检验,显示了结果的合理性。
Based on a weak nonlinear theory of 3-D baroclinic Lagrangian residual currents, the Richardson number was introduced into the treatment of the turbulent viscosity coefficient. The tide, wind and hot salt as a forcing force were unified into one model by using the velocity decomposition method. Considering Based on the influence of the Yellow River warm runoff and the Yellow River runoff, the three-dimensional wind-thermohaline-tidal Lagrange residual circulation in the Bohai Sea was calculated and calculated. At the same time, the tide-induced Lagrange residual circulation, wind-induced circulation and thermohaline circulation are given and compared and analyzed. Three primary vortex formation mechanisms of Lagrange residual circulation in the Bohai Sea are discussed. Finally, the test results are tested with the measured data, which shows the rationality of the result.