摘要
诸多研究表明高空槽在热带气旋(简称TC)变性中起着重要作用,高空槽携带的冷空气有利于TC变性发生,高空槽强度对TC变性后强度变化、移速和低层锋区发展有直接关系~([1]),但高空槽并不是TC变性的必要条件,在TC进入中纬度斜压区或进入低海温区仍能发生变性。本文依据TC在变性前是否和高空槽相互作用将变性TC分为两类,采用NCEP资料和日本RSMC数据集来研究高空槽对TC变性后发展的影响。
引文
[1]李侃,徐海明.2012.西风带高空槽对登陆我国变性热带气旋的影响及其机理研究[J].大气科学,36(3):607-618.
[2]Ryan D.T,Gregory J.H,2015.Comparison of Wave Packets Associated with Extratropical Transition and Winter Cyclones.Mon.Wea.Rev.,143,1782-1802.
[3]Hart,R.E.,2003:A Cyclone Phase Space Derived from Thermal Wind and Thermal Asymmetry.Mon.Wea.Rev.,131,585-616.
[4]Kitabatake,N.,2011:Climatology of Extratropical Transition of Tropical Cyclones in the Western North Pacific Defined by Using Cyclone Phase Space.J.Meteor.Soc.Japan,89,309-325.