遂宁降雨动能的探索性分析  

Analysis on Kinetic Energy of Rainfall in Suining

作　　者：胡兵 张玲[1] 张敏[1] 吴容 HU Bing;ZHANG Ling;ZHANG Min;WU Rong(Suining Meteorological Bureau of Sichuan Province,Suining 629000 China;Sichuan Lightning-Protection Center,Chengdu 610072,China)

机构地区：[1]四川省遂宁市气象局,四川遂宁629000 [2]四川省防雷中心,四川成都610072

出　　处：《中低纬山地气象》2022年第3期118-121,共4页Mid-low Latitude Mountain Meteorology

基　　金：遂宁市“预报有理”学习平台开发与应用(2020-应用-01)。

摘　　要：通过分析遂宁国家基本气象站5种不同降水强度的雨滴谱数据,探索DSG4降水类天气现象仪的雨滴谱资料计算小时降雨动能的方法。结果表明:各种降水强度下,降雨动能差别较大,雨量越大,降雨动能越大,降雨动能与小时雨滴数目、雨滴平均速度、雨滴平均直径成正相关的关系。利用研究结果结合水土流失降雨动能阈值,可提高涪江流域沿岸的水土保持及其预警能力。By analyzing the raindrop spectrum data of five different precipitation intensities at Suining national basic meteorological station,this paper explores the method of calculating hourly rainfall kinetic energy from the raindrop spectrum data of Dsg4 precipitation weather phenomenon instrument.The results show that the rainfall kinetic energy varies greatly under various rainfall intensities.The greater the rainfall is,the greater the rainfall kinetic energy.The rainfall kinetic energy is positively correlated with the number of hourly raindrops,the average velocity of raindrops and the average diameter of raindrops.Using the research results of this paper,combined with the rainfall kinetic energy threshold of soil and water loss,the soil and water conservation and its early warning ability along the Fujiang River basin can be improved.

关 键 词：降水类天气现象仪 降雨动能 雨滴平均直径 雨滴平均速度 

分 类 号：P426.61[天文地球—大气科学及气象学]