大气科学2018，Vol.42Issue(2)：281-291,11.DOI:10.3878/j.issn.1006-9895.1709.17111
位涡倾向在Muifa台风路径转折中的应用
Application of Potential Vorticity Tendency in Track Recurvature Study of Typhoon Muifa
摘要
Abstract
Horizontal advection and diabatic heating terms in the potential vorticity tendency equation are used to diagnose the twice track changes of typhoon Muifa based on ECMWF data. The results show that horizontal advection is about one order of magnitude larger than diabatic heating; large-scale steering flows represented by horizontal advection mainly contributed to the first track change; horizontal advection and diabatic heating both contributed to the second track change, while horizontal advection controlled the direction and diabatic heating restrained its track recurvature.关键词
位涡倾向/水平平流项/非绝热加热项/非对称结构Key words
Potential vorticity tendency/Horizontal advection/Diabatic heating/Asymmetric structure分类
天文与地球科学引用本文复制引用
袁敏,平凡,李国平..位涡倾向在Muifa台风路径转折中的应用[J].大气科学,2018,42(2):281-291,11.基金项目
国家自然科学基金项目Y41301E801、U1333130,National Natural Science Foundation of China (Grants Y41301E801, U1333130) （Grants Y41301E801, U1333130）
