Interaction of Diabatic Frontogenesis and MoistureProcesses in Cold-Frontal Rain-Band

作     者：王春明 伍荣生 王元 

作者机构：Key Laboratoryfor Mesoscale Severe Weather ofMinistry of Education P. R. China LMSWE/ MOE Department of Atmospherie Scienees Nanjing Universio Nanjing 210093Institute ofMeteorology PLA University of Science and Technology Nanjing 211101 Key Laboratoryfor Mesoscale Severe Weather ofMinistry of Education P. R. China LMSWE/ MOE Department of Atmospherie Scienees Nanjing Universio Nanjing 210093 

出 版 物：《Advances in Atmospheric Sciences》 (大气科学进展（英文版）)

年 卷 期：2002年第19卷第3期

页      面：544-561页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：We would like to thank Prof. Zhou Xiaoping (LASG  Institute of Atmospheric Physics  Chinese Academy ofSciences) for blithesome co-operating at LASG. Thanks are given to Prof. Wei Shaoyuan (PLA Science and Engi-neering University)  Prof Tan Zhemin  and ad 

主　　题：NCFR Diabatic frontogenesis Moisture heating Feedback 

摘      要：Three-dimensional simulation of cold-front rain-band (NCFR) associated with a straight cold front has been studied by use of a non-hydrostatic, full compressible storm-scale model (ARPS) including multi-phase microphysical parameterization. The dynamical and physical features of the frontal cloud de-velopment have been well simulated and analyzed. It is in evidence that the frontal cloud is triggered by the updraft of the secondary frontal circulation. However, the long persistence of diabatic frontogenesis only can be attributed to positive feedback between the frontal baroclinicity and the prefrontal latent heat release. The simulations indeed demonstrate that the potential temperature gradient enhancement in front zone is strongly related with the re-distribution of cloud moisture, by the action of tilted updraft. In conse-quence, the splice of cooling and heating pool that is respectively created from the evaporation of cloud wat-er and condensing J freezing of water vapor J rain droplet, wich is in favor of the strong contrast of cool and warm air mass across the frontal zone to diabatic frontogenesis.