基于飞机探测的云物理特征个例分析  

A case study analysis of the cloud physical characteristics based on aircraft detection

作　　者：许丽人 蔡军 孙海洋 张志标 XU Liren;CAI Jun;SUN Haiyang;ZHANG Zhibiao(Beijing Institute of Applied Meteorology,Beijing 100029,China)

机构地区：[1]北京应用气象研究所,北京100029

出　　处：《测绘科学与工程》2020年第3期68-73,共6页Geomatics Science and Engineering

基　　金：国家自然科学基金项目(41674025,41874016)。

摘　　要：基于飞机探测资料开展云系的宏微观物理特征研究,深入认知云降水机理,建立不同天气背景条件下云系特征结构模型,对于科学制定人工增雨作业方案具有十分重要的意义。文中利用冬季福建漳洲飞机探测资料,采用统计分析方法,对该地区冬季云系的宏微观特征进行分析,研究云系的变化特征和微物理参数的时空分布规律。个例分析表明,冬季在副热带高压和南支槽的共同作用下,冷暖空气对峙产生稳定层结下的锋面云系,云系分布特征从低到高分别为碎雨云、层积层、高积云。低云、中云和高云的平均云底高分别为1285m、3197m和4596m;云中的云粒子谱型分布满足KhrgianMazin谱,相关系数平均达到0.84。Based on data from airbome particle measuring system,the macro and micro physical characteristics of clouds are studied,the cloud and precipitation mechanism is perceived and cloud systemstructure models in different weather conditions are established,which are very important to design a scientific scheme for artificial rainfall.In this paper,the statistical analysis method is used to analyze the macro and micro characteristics of winter clouds with data from airbome particle measuring system in Zhangzhou,Fujian province.Then the variation characteristics and the temporal and spatial ditribution of micro physical properties of cloud system are studied.The case study shows that the confrontation of warm and cold air generates stable stratification of frontal cloud system under the influence of subtropical high and southem trough.The cloud distributions from low to high are characterized as fracto-nimbus,stratocumulus and altocumulus,successively.The average heights of the cloud base from low,medium and high cloud are 1285 m,3197 m and 4596 m respectively.The cloud particle spectrum is consistent with the KhrgianMazin spectrum,and the average correlation cofficient can reach 0.84.

关 键 词：冬季云系 飞机探测 宏微观特征 云粒子谱 统计分析 

分 类 号：P412[天文地球—大气科学及气象学]