甘肃省秋季层状云冰雪晶粒子特征个例分析

The Characteristic of Ice-snow Crystals of straitiform-type clouds in Autumn in Gansu Province

利用安装有PMS探头、温湿仪和GPS的飞机 ,对 2 0 0 1年 10月 12日甘肃河西地区降水性层状云进行了探测。根据获取的资料分析了此次降水性层状云的冰雪晶特征 ,包括不同粒子的分布特性 ,给出不同温度下的冰雪晶粒子谱 ,还分析了粒子谱型随温度的变化及其包含的微物理机制。与我国其它地区的冰雪晶浓度比较认为 ,在一定的云水条件下 。

Based on data from aircraft equiped with PMS probe and GPS, Instrument which measures temperature and humidity as well,We analysed the characteristics of ice crystals (snowflakes) of straitiform-type clouds and distribution feature of different particle over Hexi region in Gansu Province On Oct. 12th 2001,and the particle spectrum of ice crystal (snowflakes) under different temperature is given.The results show that there is great potential of precipitation augmentation by analyzing the change of the particle spectrum under the different temperature and its mechanism of microphysics and comparing with the concentration of ice crystals(snowflakes) in other regions in China.