春季冷锋天气过程层状云微物理结构个例分析  

A Case Study on Microphysical Structure of Stratus during A Cold Front in Spring

作　　者：李照荣[1] 李荣庆[1] 陈添宇[1] 李宝梓[1] 杨增梓[1] 庞朝云[1] 

机构地区：[1]甘肃省人工影响天气办公室,甘肃兰州730020

出　　处：《干旱气象》2004年第4期40-45,55,共7页Journal of Arid Meteorology

基　　金：国家课题攻关计划"西部开发科技行动"黄河中游(陕甘宁)干旱半干旱地区人工增雨(雪)技术开发与示范(2001BA901A41);甘肃省气象局"甘肃省人工增雨防雹体系工程"云水资源研究.

摘　　要：利用PMS云粒子测量系统和GPS定位系统探测了2002年4月28日一次冷锋天气过程,用取得的资料分析了此次过程云滴、冰晶等云微物理量的水平、垂直分布,以及谱的特征,确定出最佳谱模拟参数,揭示了其中发生的微物理过程,从微观角度说明了甘肃春季冷锋天气过程层状云的一些特点,并讨论了云系的增雨潜力。Based on the data measured by PMS and GPS during a cold front process on April 24,2002, the horizontal and vertical distributions and spectrum characteristics of microphysical quantities of cloud drop and ice crystal were analyzed in this paper. And the optimum parameters of simulated functions were given out, the possible microphysical mechanism which involved were discussed. On these facts, the potential ability of enhancement rainfall was discussed and estimated.

关 键 词：天气过程 层状云 冷锋 个例分析 微物理结构 微物理过程 云系 春季 垂直分布 利用 

分 类 号：P458[天文地球—大气科学及气象学] P426