河南春季一次冷锋降水过程的云物理结构分析

利用Cheyenne ⅢA探测作业飞机机载PMS探测设备、GPS航迹资料、飞机探测宏观记录、天气预报等资料，对河南春季云粒子浓度、粒子直径、液态水含量及云滴谱进行了分析。结果发现，冷锋前后云中粒子的浓度、液态含水量以及粒子的粒子谱型存在较大的差异，从而揭示出锋面前后云中粒子的不同特征，云粒子谱分析表明：锋前云粒子谱主要为单峰型，锋面过境时，谱型逐渐转为双峰型或多峰型。混合云及更高层的云谱型比层积云更加复杂，粒子直径比积云大很多，谱宽较宽。

Microphysical characteristics of aprecipitation progress in Henan province

With the special refitted microphysics clouds observation instruments onboard aircraft Cheyenne-IIIA,made by US Piper Co.Ltd,some data were obtained.Based on the onboard PMS,GPS,LWC,video recorder,and human notes weather forecasting data,the paper analyzed vertical distribution character of cloud particle concentration,particle diameter,liquid water content and cloud droplet spectra during spring in Henan.It shows some results of cloud microphysical characteristics in frontier.On the other hand,spectrum shapes are bimodal and even have more peak value in frontier.Altocumulus and higher cloud's diameter are bigger and the spectrum shapes broader than stratocnmulus.