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本文研究无界有限深度海洋对移行风场的短周期响应问题。分析表明:第一,响应扰动具有两种类型,即地转流动和惯性重力波动,第二,提出一种圆形旋转风场在海上移动所产生的扰动源,扰动源主要决定于风应力旋度的分布,第三,以扰动源作为一种脉冲构成运动方程的非齐次项,求解得出海洋的响应主要取决于圆形风场;最后,通过计算求得扰动流速和海面升高的时空分布,扰动响应在强度、范围及持续时间上均与风场密切相关。
In this paper, we study the short-period response of a moving oceanic wind field without bounding finite depth. The analysis shows that: First, there are two types of response disturbances, that is, geostationary flow and inertial gravity fluctuation. Second, a disturbance source caused by the circular rotating wind field moving at sea is proposed. The disturbance source mainly depends on the wind stress rotation Thirdly, using the perturbation source as a kind of impulse to form an inhomogeneous term of the equation of motion, the response of the ocean is mainly determined by the circular wind field. Finally, the perturbation velocity and the sea surface elevation are calculated Spatiotemporal distribution and disturbance response are closely related to wind field in intensity, range and duration.