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气候与环境研究 1997
Analysis of Surges, Currents and Waves Induced by a Traveling Storm in Idealized Oceans I. An Open Ocean Case
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Abstract:
The response of an idealized open ocean to a traveling storm is investigated by using theoretical and numerical methods. The results show that the motion induced by a traveling storm in an open shallow ocean is dominated by geostrophic currents. At the same time, small amplitude inertia-gravitational waves are also produced. The inertia-gravitational waves are triggered by rapid changes in the intensity or moving velocity of the storm, the wave speed is usually larger than the moving velocity of the storm. The pressure field of the storm causes ascent of the sea level weak. The descent of the sea level caused by the cyclonic wind of the storm can maintain for a long time, thus producing a long trail after the storm. The total effect of the wind and pressure fields give rise to ascent of the sea level just ahead of the storm and descent behind the storm.