基于频率匹配的EC模式定量降水偏差订正  

Quantitative precipitation deviation correction of EC model based on frequency matching

作　　者：周威[1,4] 魏庆 杨康权 陈茂强[3] Zhou Wei;Wei Qing;Yang Kangquan;Chen Maoqiang(Sichuan Meteorology Observatory,Chengdu 610072;Sichuan Lightning Protection Center,Chengdu 610072;Neijiang Meteorology Bureau,Neijiang 641000;Heavy Rain and Drought Flood Disaster in Plateau and Basin Key Laboratory of Sichuan Province,Chengdu 610072)

机构地区：[1]四川省气象台,成都610072 [2]四川省防雷中心,成都610072 [3]内江市气象局,内江641000 [4]高原与盆地暴雨旱涝灾害四川省重点实验室,成都610072

出　　处：《气象水文海洋仪器》2024年第1期17-19,23,共4页Meteorological,Hydrological and Marine Instruments

基　　金：四川省自然科学基金(2023NSFS0242);高原与盆地暴雨旱涝灾害四川省重点实验室科技发展基金项目青年专项(SCQXKJQN202109,SCQXKJQN202227)资助。

摘　　要：为了提升模式预报效果,文章利用四川盆地南部2018-2020年5-9月的EC模式降水预报资料和实况降水资料,采用频率匹配的方法对EC模式的24 h累计降水进行订正分析和检验,给出了预报偏差订正系数。研究结果能够提升相关区域的降水预报能力。In order to improve the forecast effect of the model,this paper uses the EC model precipitation forecast data and the actual precipitation data from May to September in 20182020 in the southern Sichuan Basin,and adopts the frequency matching method to correct the 24 hours cumulative precipitation of the EC model.The correction coefficient of forecast deviation is given.The research results can improve the precipitation forecast ability of related areas.

关 键 词：EC模式 降水 频率匹配 偏差订正 

分 类 号：P456.5[天文地球—大气科学及气象学]