尺度分离法在云南单点性暴雨诊断分析中的应用

The application of the scale splitting methods in the single point rain-storm diagnosis analyze in Yunnan

摘要: 应用低通滤波器分离天气尺度和次天气尺度的运动,对云南罗平地区的一次单点性暴雨过程的各种物理量进行诊断分析.发现天气尺度的系统为次天气尺度的系统提供了暴雨发生的适合的环境场,而次天气尺度的系统是导致罗平地区单点性暴雨发生的直接原因.

Abstract: The synoptic scale and sub-synoptic scale were splitted by the low pass filter and diagnosed the physics of the process of the single point rain-storm of Luoping in Yunnan province.The results indicated that the synoptic scale system provided appropriate environment for the sub-synoptic scale.The sub-synoptic scale was the direct reason of this single point rain storm of Luoping in Yunnan province.