SOME RELATIONS BETWEEN ASYMMETRIC STRUCTURE AND MOTION OF TYPHOONS^*

The analysis of the SPECTRUM(Special Experiment Concerning Typhoon Recurvature and Unusual Movement) data indicates that the structure of recurving target typhoons 9015(Abe),9019(Flo) and 9020(Gene) at different stages of moving processes showed different motion features.On different time scales,temporal variations of typhoon structure and motion speed displayed different features.