Based on the intensity change of tropical cyclones in the Northwest Pacific for 6 hours and the best path data set of tropical cyclones in the Northwest Pacific from 1979 to 2015 from the Joint Typhoon Warning Center(JTWC)of the United States,the relationship between the intensity of tropical cyclones in the Northwest Pacific and the moving speed was studied.The results show that due to the blocking effect of terrain,the tropical cyclones will weaken after landing and the moving speed will slow down.Warm sea temperature is conducive to the occurrence and development of tropical cyclones,maintaining sufficient water vapor in the middle layer and maintaining the internal structure of tropical cyclones.There is a strong correlation between the intensity of tropical cyclone and its moving speed,that is,the greater the intensity of tropical cyclone changes,the slower its moving speed.Rapidly moving tropical cyclones tend to cause negative feedback of sea surface temperature,for the cooling of the sea surface can reduce the intensity of tropical cyclones.
国家科技期刊平台
NSTL
万方数据
