Characteristics of Grav ityWave Dur ing a Ra in storm Process

Abstract

Abstract:

paper selected a rainstorm case occurred in Sichuan Province to study the relationship between gravitywave and the convection movement of atmosphere. Focused on the triggeringmechanism and formation reason of the rainstorm, the case is studied by usingMicap s data and weather radar images, combined with the synop tic analysis and gravitywave indexmethods. The result demonstrated that there was close relationship between gravitywave and the rainstorm, and gravitywave led to the development of the rainstorm.NBE has a good indication in diagnosis of gravity wave.

Key words: rainstorm, gravity wave, Ri, NBE

摘要：

选取四川省的一次暴雨个例分析研究大气中对流活动和重力波的相互内在联系。针对这次暴雨过程，采用MICAPS探空资料和天气雷达资料，并且结合天气学分析以及重力波指数的分析方法对暴雨的形成原因和重力波的机制进行了研究。结果表明：重力波与暴雨有一定的内在联系，重力波引导了暴雨的发展；非线性平衡方程对于诊断大幅度的重力波有很好的指示作用。

关键词: 暴雨, 重力波, 理查逊数, 非线性平衡方程

CLC Number:

P458. 1 ⁺ 21. 1

LIU 　Jia, WANG 　Wen. Characteristics of Grav ityWave Dur ing a Ra in storm Process[J]. J4, 2010, 28(1): 65-70.

刘　佳, 王　文. 一次暴雨过程的重力波特征分析[J]. J4, 2010, 28(1): 65-70.

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