自动气象站强降水数据质量控制方法与实践  

A method of controlling the quality of heavy rainfall data of automatic meteorology stations and its practice

作　　者：盛志军[1] 马中元[2] 许爱华[1] 

机构地区：[1]江西省气象台,南昌330046 [2]江西省气象科学研究所,南昌330046

出　　处：《气象水文海洋仪器》2016年第1期79-85,共7页Meteorological,Hydrological and Marine Instruments

基　　金：江西省气象局强对流创新团队(JXQDL20140010)项目资助

摘　　要：使用天气雷达回波拼图的经纬度网格点数据和自动气象站雨量数据,采用分段计算、均值滤波等算法,对自动气象站出现的强降水(≥20mm/h)奇异数据进行质量控制,结果表明:雷达回波拼图经纬度网格点数据(1 100×1 100km),对自动站强降水数据的确认十分有效;采用分段计算一小时雨量可以最大限度提高雨量产品的刷新时间;采用均值滤波算法计算雷达回波网格点数据,可以减少或消除颗粒状等干扰影响回波质量问题;通过实例检验,该方法对消除自动站奇异雨量数据效果较好。Using longitude-latitude grid data of weather radar echo mosaic and precipitation data of automatic meteorology stations,the segmentation calculation and mean value wave filtering algorithms are introduced to control the quality of suspicious data of heavy rainfall（≥20mm/h）that automatic meteorology stations record.The results show that it is very effective that heavy rainfall data of automatic stations is confirmed by longitude-latitude grid data（1100×1100km）of radar echo mosaic.The maximum refresh time of rainfall products can be raised by segmentation calculation on one hour precipitation.The granular echo interference can be reduced or eliminated by mean value wave filtering algorithms based on radar echo grid data.The method has good effect on eliminating suspicious precipitation of automatic stations by testing cases.

关 键 词：自动气象站 强降水 雷达回波网格点 分段计算 均值滤波 

分 类 号：P415.12[天文地球—大气科学及气象学]