2022年3月31日务川县地面火箭人工增雨作业效果分析  

Analysis of Effect of Artificial Precipitation Enhancement by Ground Rocket in Wuchuan County on March 31,2022

作　　者：高建飞 李霞 熊凯 吴新星 王立斌 刘晓倩[2] GAO Jianfei(Meteorological Bureau of Wuchuan Gelao and Miao Autonomous County,Wuchuan,Guizhou 564300)

机构地区：[1]务川仡佬族苗族自治县气象局,贵州务川564300 [2]遵义市气象局,贵州遵义563000

出　　处：《农业灾害研究》2022年第9期139-141,共3页Journal of Agricultural Catastrophology

摘　　要：2022年3月31日,务川县成功开展一次地面火箭人工增雨作业及时抗旱减灾。利用自动站分钟雨量和新一代多普勒天气雷达资料,采用区域对比分析方法,对此次人工增雨效果分析表明:通过对比分析了作业影响区和对比区作业前、后3 h内雨量,统计得到作业效果值为1.28,正效果;作业增雨值为2.4 mm,相对增雨18.3%,总雨量增值161500 m^(3)。选取合反射率因子、差分相移率、回波顶高等产品作业前、后有关参数不同时间点的物理变化,结果表明:作业影响区的相关参数在作业后发生了显著变化,催化在作业后约10~20 min内发挥作用并达到最强,影响区的反射率因子、差分相移率、回波顶高的增大率及强值中心大于对比区的值,催化作业对增加地面降水的效果显著,统计效果得到云物理现象验证。On March 31,2022,Wuchuan County successfully carried out a ground rocket artificial rainfall enhancement operation to timely combat drought and reduce disaster.In this paper,by using the data of automatic station minute rainfall and the new generation Doppler weather radar,and adopting the regional comparative analysis method,the analysis of the artificial rainfall enhancement effect shows that:through the comparative analysis of the rainfall in the operation affected area and the comparison area within 3 h before and after the operation,the statistical operation effect value is 1.28,which was a positive effect;The operation rainfall increase value is 2.4 mm,the relative rainfall increase was 18.3%,and the total rainfall increase was 161500 m^(3).The physical changes of the relevant parameters before and after the operation of the selected products such as combined reflectivity factor,differential phase shift rate and echo top height show that the relevant parameters in the operation affected area have changed significantly after the operation,and the catalytic effect was strongest within about 10~20 min after the operation.The reflectivity factor,differential phase shift rate,the increase rate of echo top height and the intensity center in the affected area were greater than those in the comparison area,The catalytic operation had a significant effect on increasing ground precipitation,and the statistical effect is verified by cloud physical phenomena.

关 键 词：火箭增雨 效果 区域分析 雷达产品 

分 类 号：P481[天文地球—大气科学及气象学]