%0 Journal Article
%T Diagnostic Analyses of the Modified Convective Vorticity Vector in Non-uniformly Saturated Moist Flow
The diagnostic analyses of modified convective vorticity vector in non-uniformly saturated moist flow
%A YANG Shuai
%A WANG Dong-Hai
%A
YANG Shuai
%A WANG Dong-Hai
%J 大气和海洋科学快报
%D 2009
%I
%X Because the real atmosphere is non-uniformly saturated, the generalized potential temperature is introduced. The convective vorticity vector, which can depict the occurrence and development of mesoscale deep convective systems, is modified and re-derived in a non-uniformly saturated moist atmosphere (C*). Then, a case study is performed for a frontal rainfall event which occurred near the middle and lower reaches of the Yangtze River in China. The diagnostic results of C* show that, in the lower troposphere, the vertical component of C* (C*z) can diagnose developments and movements of precipitation and convection better than those of Cm (Cmz, in saturated moist flow) and C (Cz, in dry flow). C*z is a good predictor for precipitation analyses as well.
%K non-uniform saturation
%K generalized potential temperature
%K modified
%K convective vorticity vector
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=DFA1C03CBD38122A6831EBC757FD100F&aid=FC686EC4A2ECB99466524543CF6BF587&yid=DE12191FBD62783C&vid=0B39A22176CE99FB&iid=38B194292C032A66&sid=E22B6B8FE86DD8F9&eid=2922B27A3177030F&journal_id=1674-2834&journal_name=大气和海洋科学快报&referenced_num=0&reference_num=0