摘要
采用诊断分析和数值试验的方法 ,分析了 971 1号台风登陆后的演变过程 ,讨论了水汽、地形等因子对台风及其降水的影响。诊断分析表明 ,理查逊数对降水落区具有一定的指示性 ,- 1 <Ri<0的强对流和湍流发展区与降水分布区域较一致。数值试验表明 ,水汽是台风及其降水加强和减弱的一个制约因子 ,水汽含量减少到一定程度的台风过程可视为干台风过程 ;
Diagnostic analysis and numerical experiments were performed in this paper for the evolution of No.9711 Typhoon landed at Zhejiang province,and the forming cause of its torrential rainfall was analyzed.The results show that water vapor is a decisive factor of typhoons rainfall.Topography acts an important role in the development of typhoon process and its rainfall.Moreover,the R i number could show the potential area of the torrential rainfall to a certain degree.
出处
《解放军理工大学学报(自然科学版)》
EI
2000年第1期88-93,共6页
Journal of PLA University of Science and Technology(Natural Science Edition)
关键词
台风暴雨
诊断分析
数值试验
torrential rainfall
diagnostic analysis
numerical experiment