青海东部地区一次双架次飞机增雨作业的云参数变化与地面降水的相关分析  

Correlation Analysis of Cloud Parameter Change and Ground Precipitation in A Double Aircraft Rain Enhancement Operation in Eastern Qinghai

作　　者：龚静[1] 张玉欣 林春英[1] 张博越 郭三刚[1] 薛丽梅[1] GONG Jing;ZHANG Yu-xin;LIN Chun-ying;ZHANG Bo-yue;GUO San-gang;XUE Li-mei(Qinghai Province Weather Modification Office,Xining Qinghai 810001,China)

机构地区：[1]青海省人工影响天气办公室

出　　处：《青海农林科技》2019年第4期21-25,共5页Science and Technology of Qinghai Agriculture and Forestry

摘　　要：利用云参数卫星反演产品,结合地面自动站观测降水资料,以2018年7月1日在东部农业区实施双架次飞机增雨作业为例,对作业区与对比区作业前后的云系进行跟踪,对宏微观物理量、降水量进行统计及对比分析。结果表明:催化作业1h后作业区粒子半径和液水路径增长明显,与降水量均呈正相关,对比区两个值变化不明显;云中过冷层厚度、云顶高度和光学厚度等宏观物理量在作业区和对比区均没有明显变化特征。过冷层厚度、光学厚度和云顶高度可以用来判断降水系统的发展时段,粒子半径和液水路径可以作为判断作业时是否有效果的判断标准,对降水具有较好的指示性。Based on products obtained from the cloud parameter satellite inversion system developed by the China Meteorological Administration’s Artificial Weather Influencing Center,combined with ground automatic stations observed precipitation data,systematic analyzed and compared the macro and micro physical quantity and precipitation,then correlated the cloud system before and after the operation is tracked on July 1,2018,the implementation of double aircraft rain enhancement in the eastern agricultural area.The results show that the particle radius and the liquid water path of the microscopic physical quantity in the cloud have obvious influence from 1 h after the operation,and are positively correlated with the precipitation in the operating region,but is not obvious in the contrast region.The super-cooled layer thickness,optical thickness and cloud top height in the cloud have no obvious changes in the operating region and the contrast region.The super-cooled layer thickness,optical thickness and cloud top height can be used to judge the development period of the precipitation system,and the particle radius and the liquid water path can be used as a criterion for judging the effect of the operation.

关 键 词：青海东部地区 飞机增雨 宏微观物理量 相关性分析 

分 类 号：P426.5[天文地球—大气科学及气象学]