开放多相系熵密度平衡方程在暴雨预报中的应用  

Study of Rainstorm with the Entropy Density Balance Equation in the Opening Multiphase System

作　　者：韩仙华[1] 钟剑[2] 黎爱兵[2] 张云[2] 高彬[3] 

机构地区：[1]解放军理工大学理学院 [2]解放军理工大学气象学院 [3]93173部队

出　　处：《大气科学学报》2009年第3期386-391,共6页Transactions of Atmospheric Sciences

基　　金：国家自然科学基金资助项目(40505024)

摘　　要：利用耗散结构理论的相关知识,从非平衡态理论的熵密度平衡方程出发,计算了2004年6月23日发生在湖南西部和北部地区暴雨发生前24h至暴雨结束前12h每隔6h对流层中低层的熵变场。通过对各个不同时刻的熵变场的分析与比较,讨论了熵场变化与暴雨区域、强度及其演变之间的关系,为暴雨强度和落区预报提供了参考指标。In this paper, the dissipative structure theory and the entropy density balance equation of nonequilibrium theory are used to calculate the entropy change associated with a rainstorm in the west and north of Hunan province on June 23,2004. The entropy change is calculated at the middle and lower levels of the tropopause at a 6 h interval from twelve hours before and after the rainstorm. Besides, through the analysis and comparison of entropy change in different time, the relationships of entropy change with the rainstorm＇s territory ,intensity and evolution rule are discussed,and an indicator for the prediction of rainstorm is presented.

关 键 词：耗散结构理论 非平衡态理论 熵场变化 暴雨研究 

分 类 号：P458.121.1[天文地球—大气科学及气象学]