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将两层约化重力原始流体动力方程耦合气候月平均风场,数值计算流场基本能够正确反映热带太平洋上层主流系和温跃层的空间分布和季节变化.在气候平均条件下,东太平洋125°W附近经向风应力可激发出高阶混合Rossby重力波.海洋高阶赤道Kelvin波流速模态可从西太平洋边界传播到东太平洋边界,而高阶赤道Kelvin波温跃层模态从西太平洋边界东传后,在中太平洋受到高阶混合Rossby重力波诱发的西传温跃层扰动的阻挡.
Coupling the monthly mean wind field of two layers of reduced gravity hydrodynamic equations with the climatology, the numerical flow field can correctly reflect the spatial distribution and seasonal variation of the upper troposphere and thermocline in the tropical Pacific. Under climatological average conditions, the high-order mixed Rossby gravity waves are excited by the meridional wind stress around 125 ° W in the eastern Pacific Ocean. The high-order equatorial Kelvin wave velocity mode can propagate from the western Pacific boundary to the eastern Pacific boundary, whereas the high-order equatorial Kelvin wave thermocline mode is induced by the high-order mixed Rossby gravity wave in the central Pacific after reaching eastward from the western Pacific boundary West of the western thermocline disturbance block.