DSC2型称重式降水传感器测雨性能的分析  

Analysis on the Performance of DSC2 Weighing Gauge in Precipitation Observation

作　　者：李林[1,2,3] 范雪波 孙雪琪 崔炜 张治国 

机构地区：[1]中国气象局北京城市气象研究所,北京100089 [2]中国气象局气象探测工程技术研究中心,北京100086 [3]北京市气象探测中心,北京100089

出　　处：《气象》2016年第8期1013-1019,共7页Meteorological Monthly

基　　金：国家重大科学仪器设备开发专项(2012YQ11020507);中国气象局气象探测工程技术研究中心开放基金课题共同资助

摘　　要：为更有效地利用降雨观测数据,充分发挥新型探测设备建设效益,文章对DS(2型称重降水传感器的测雨性能进行分析评估,选取北京市13个国家级地面气象观测站在2013年4—10月,称重式降水传感器与人工、翻斗观测降雨量的业务观测资料,分析称重与人工和翻斗观测在降雨总量、日降雨量等方面的差异。结果表明:在选取样本中,12个台站的总降雨量误差符合现行业务要求,三种测量在日降雨量等级判断方面基本一致。称重比人工观测的日降雨量平均偏小0.13 mm,日降雨量相关系数为0.9968,对应地,称重比翻斗观测的结果平均偏小0.17 mm,日降雨量相关系数为0.9983。To use precipitation data more effectively,this paper analyzed the performance of DSC2 weighing gauge in precipitation observation.We selected the precipitation observation data from 13 national meteorological stations in Beijing from April to October 2013 to do research.The data were collected by weighing gauge,manual way and tipping gauge,respectively.The analysis was focused on the differences of total rainfall and daily precipitation observed by the three ways.The results showed that,among the samples,the errors of total precipitation from 12 stations are in line with the requirement of current operation and the grade judgment of daily precipitation by the three ways are basically consistent.Comparing the weighting gauge with manual way,the daily mean precipitation by weighing gauge shows a 0.13 mm less,and the daily precipitation correlation coefficient is 0.9968.The observation result by weighing gauge is averagely 0.17 mm less than the result by tipping gauge and the correlation coefficient is 0.9983.

关 键 词：降雨量 称重式降水传感器 对比评估 相关性 

分 类 号：P456[天文地球—大气科学及气象学]