A NUMERICAL ANALYSIS ON TYPHOON ASYMMETRIC STRUCTURE AND MOTION

Five prediction experiments are carried out with two typhoons in 1992 using a limitedarca primitiveequations and two-way interactive model in a movable,nested mesh. The result indicates good agreementin terms of motion between the prediction and observation. Studying the asymmetric structure in the cases selected, a close link is uncovered between the temporal evolutions of the structure and the track of motion in a tropical cyclone. Understanding of real asymmetric structure will help to improve the skill offorecasting tropical cyclones.