通辽市一次锋面降水过程云物理特征分析  

Analysis on the Cloud Physical Characteristics of a Frontal Precipitation Process in Tongliao City

作　　者：高向忠 严宏志 红英 

机构地区：[1]内蒙古东部人工影响天气中心,内蒙古通辽028000 [2]土默特左旗气象局,内蒙古土默特左旗010100

出　　处：《内蒙古气象》2015年第2期31-33,38,共4页Meteorology Journal of Inner Mongolia

摘　　要：文章利用2012年9月2日影响内蒙古通辽市的一次锋面降水过程的机载大气粒子测量系统（PMS）的资料,结合飞机宏观记录、天气形势、雷达回波和卫星云图等资料,对云层的物理特征进行了初步分析：锋面降水云系中的PIP粒子浓度变化随高度变化成正相关,5200m高度达到最大。底部的云体降水粒子浓度随时间减小,说明底部的云层正在消散。航线飞行过程中探测到降水粒子浓度在16：35之后变大,说明云体在下层有发展的趋势。云中CAS粒子总浓度整体相差不大,浓度在100~600个·cm-3之间,峰值浓度在4200m高度处,达到800~900个·cm-3。SPP-200粒子总浓度呈现双峰结构,分别在5200m和3450m高度层。The paper analyzes preliminarily the microphysical characteristics of clouds according to the data of PMS, macroeconomic record of the aircraft, the weather situation, the radar echo and satellite cloud picture of a frontal precipitation in Tongliao on September 2, 2012. The results showed that PIP particle concentration in the frontal precipitation process is positive correlation with height, The maximum height is 5200 m. The precipitation particle concentration of the cloud on the bottom is decreases with time, which indicates the clouds on the bottom are dissipating. The precipitation particle concentration detected during the flight processing is larger after 16：35, which shows the development trend of the clouds in the lower layer.The total concentration of CAS Particle in the clouds is little difference between 100 to 600 /cm3 at overall, and the peak of concentration is reached800 to 900 / cm3 at the height of. 4200 m. SPP-200 particles total concentration appears bimodal structure, which is 5200 m and 3450 m level.

关 键 词：锋面 飞机探测 粒子谱 云物理特征 

分 类 号：P462.6[天文地球—大气科学及气象学]