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Thermohydrodynamics of the ocean generation of seiches by moving baric fronts in bounded basins

机译：在有界盆地中通过移动锋线锋面而产生的塞奇斯海洋的热流体动力学

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摘要

We consider a plane problem of barotropic seiches generated by a front of atmospheric pressure moving over a bounded basin. A system of nonlinear equations of long waves is solved by the finite-difference method with regard for the bottom friction and Earth's rotation. The numerical analyses are performed for two basins with distributions of depths typical of the Black Sea. It is shown that the passage of a baric front over the basin leads to the generation of lower seiches. The oscillations of level and the corresponding currents are especially intense in the shallow-water zones of the basins. The seiches become more intense as the velocity of transfer of the atmospheric front increases and the width of the front decreases. Earth's rotation leads to the generation of longshore currents and promotes the process of weakening of residual oscillations of the fluid following the passage of the front. The influence of nonlinearity on seiches is small for the analyzed basins.
机译：我们考虑了由大气压锋在有界盆地上移动而产生的正压西切平面问题。关于底部摩擦和地球自转，通过有限差分法求解了长波非线性方程组。对两个具有黑海典型深度分布的盆地进行了数值分析。结果表明，盆地上方的高压锋面的通过导致了下叠叠角的形成。在盆地的浅水区，水位的振荡和相应的电流特别强烈。随着大气锋面传输速度的增加和锋面宽度的减小，围堰变得更加强烈。地球的自转会导致产生长岸流，并促进减弱随着锋面经过而引起的流体残余振荡的过程。对于所分析的盆地，非线性对塞切斯的影响很小。

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