一次快速发展气旋的有效位能收支分析

A CASE STUDY ON ANALYSIS OF AVAILABLE POTENTIAL ENERGY BUDGET FOR A WEST PACIFIC EXPLOSIVE CYCLONES

本文利用有效位能收支方程对1979年1月10日出现于西太平洋的爆发性发展气旋进行了有效位能的收支分析,讨论了气旋发展和有效位能的产生、释放的关系。计算了有效位能的转换效率。结果表明,非绝热加热和大尺度背景场对有效位能的变化均是重要的。在非绝热加热中,大尺度和对流性凝结潜热的释放对气旋的发展都是重要的。

In this paper, the west Pacific explosive cyclones has been diagnosed by using available potential energy budget equation. The relation between the deeping of explosive cyclone and the generation and release of available potential energy was discussed. Conversion efficicieny of available potential energy was also been calculated. It was found that the relation between diabatic condensation heating and large scale dynamical process is evident. Both large scale and convective condensation heating are important for development of cyclones.