摘要
极端天气下气象雨量传感器测量通常会超出检定规程上限的30mm。为提高降水观测设备预报结果的准确性,以降水量0mm、雨强(1~4)mm/min和降水量30mm、雨强(1~5)mm/min为例,将称重雨量传感器作为标准器进行比对。同时,使用雨量校验仪模拟降水量60mm、雨强(6~8)mm/min的极大雨强降水试验。结果表明:雨强5mm/min时,两种仪器的相对误差小于±4%;雨强6mm/min、7mm/min时,相对误差超出合理区间;雨强8mm/min时,示值误差的符合性评价结果为不合格或待定。
The measurement of meteorological rainfall sensor in extreme weather often exceeds the upper limit of verification regulations by 30mm.In order to improve the accuracy of the forecast results of precipitation observation equipment,taking the precipitation of 0mm and rain intensity(1~4)mm/min and the precipitation of 30mm and rain intensity(1~5)mm/min as examples,the weighing rainfall sensor is used as the standard to compare.At the same time,the rainfall calibrator was used to simulate the maximum rainfall intensity precipitation test with precipitation of 60mm and rainfall intensity(6~ 8)mm/min.The results show that when the rain intensity is 5mm/min,the relative error of the two instruments is less than ±4%.When the rain intensity is 6mm/min or 7mm/min,the relative error exceeds the reasonable range.When the rain intensity is 8mm/min,the conformity evaluation result of the indication error is unqualified or undetermined.
作者
郑雨欣
丁红英
罗昶
ZHENG Yuxin;DING Hongying;LUO Chang
出处
《计量与测试技术》
2025年第1期10-14,共5页
Metrology & Measurement Technique
基金
中国气象局气象探测中心观测试验项目资助(项目名称:极端降雨条件翻斗式雨量传感器测量性能试验,项目编号:SY2022029)。
关键词
极端天气
翻斗雨量传感器
测量相对误差
符合性评价
溢出现象
extreme weather
tipping bucket rainfall sensor
measurement error
conformity assessment
overflow
作者简介
通讯作者:丁红英。
