称重式降水传感器异常降水记录特征分析  

Characteristics of Abnormal Precipitation Measurements for Weighing Gauges

作　　者：李林[1,2] 范雪波 崔炜 王力 陈璐 

机构地区：[1]中国气象局北京城市气象研究所,北京100089 [2]北京市气象探测中心,北京100089

出　　处：《气象科技》2015年第3期422-425,共4页Meteorological Science and Technology

基　　金：国家重大科学仪器设备开发专项(2012YQ11020507);北京市气象局科研专项(2013BMBKYZX07)资助

摘　　要：为掌握称重式降水传感器的仪器性能,分析称重式降水传感器在业务应用中存在的问题,提高称重式降水传感器数据可用性,选取北京地区38个台站称重降水传感器的异常降水观测进行统计分析,依照产生原因对异常降水记录开展归纳分类,将其总结为4个类型,即电源干扰型、温度敏感型、滞后型和融冻型,并分别对各类型异常降水记录的产生原因与误报特征进行分析,最后提出增加直流稳压模块、加强温度系数测定、改进设备结构或工艺、规范维护操作等多方面的对应解决思路。To improve the accuracy of precipitation observations, a statistical analysis of precipitation data obtained by 38 weighing gauges in Beijing is made. The abnormal precipitation records are divided into four categories： power interference, temperature-sensitive, lag, and thawing. According to the causes and features of the four kinds of records, the corresponding suggestions are proposed, such as installing a DC manostat into the power supply, strengthening the verification of temperature coefficient, improving the structure or processing craft of weighing gauges, standardizing the maintenance operations, etc.

关 键 词：称重式降水传感器 异常降水 特征分析 

分 类 号：P429[天文地球—大气科学及气象学]