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自记与自动观测降雨量的差异及相关分析
引用本文:李亚丽,任芝花,陈高峰,妙娟利,刘芳霞.自记与自动观测降雨量的差异及相关分析[J].气象科技,2011,39(2):227-230.
作者姓名:李亚丽  任芝花  陈高峰  妙娟利  刘芳霞
作者单位:1. 陕西省气象信息中心,西安,710014
2. 国家气象信息中心,北京,100081
基金项目:中国气象局气象新技术推广项目“观测环境和仪器变化对地面观测资料的影响评估”(CMATG2008Z12)资助
摘    要:利用2004—2007年同时使用雨量计(自记)与雨量传感器(自动)观测的54站其中1年的平行观测日降雨量资料,通过对比差值、相关系数分析两者的差异及相关性。结果表明:双翻斗式遥测雨量计自记观测比双翻斗雨量传感器自动观测的日降雨量平均偏小0.12 mm,标准差为0.93 mm。虹吸式雨量计自记观测比双翻斗雨量传感器自动观测的日降雨量平均偏小0.39 mm,标准差为1.5 mm。自动观测降雨量对雨日有一定的影响,两者存在一定的系统偏差。双翻斗式遥测雨量计、虹吸式雨量计与双翻斗雨量传感器观测日降雨量的相关系数分别为0.996和0.994,虹吸式雨量计、双翻斗式遥测雨量计自记观测与人工观测降雨量的相关系数分别为0.98和0.95。

关 键 词:自动观测  自记观测  降雨量  雨日  相关
收稿时间:1/8/2010 12:00:00 AM
修稿时间:2010/5/18 0:00:00

Difference and Correlativity Analysis between Automatic and Self Recording Observation Rainfall
Li Yali,Ren Zhihu,Chen Gaofeng,Miao Juanli and Liu Fangxia.Difference and Correlativity Analysis between Automatic and Self Recording Observation Rainfall[J].Meteorological Science and Technology,2011,39(2):227-230.
Authors:Li Yali  Ren Zhihu  Chen Gaofeng  Miao Juanli and Liu Fangxia
Affiliation:Li Yali Ren Zhihua Chen Gaofeng Miao Juanli Liu Fangxia (1 Meteorological Information Center of Shaanxi,Xian 710014;2 National Meteorological Information Center,Beijing 100081)
Abstract:The data of daily rainfall from 54 weather stations in 2004,2005,2007 are used to analyze the difference and correlativity between automatic and self-recording observation rainfall.Results indicate that the average daily rain amount observed by dual tipping-bucket pluviographs is 0.12 mm less than those by the automatic observation,with the standard deviation of the difference being 0.93 mm;the average daily rain amount observed by hydrocone-type pluviographs is 0.39 mm less than the automatic observation,with the standard deviation of the difference being 1.5 mm.The application of the automatic rain sensors has certain influence on the statistical results of rainy days.The daily rain amount observed by the self-recording observation is obviously linearly related to that by the automatic observation.The correlation coefficient of daily rainfall measurements by the tipping bucket pluviograph and the automatic rain sensor is 0.996 and the correlation coefficient of daily rainfall measurements by hydrocone type pluviograph and the automatic rain sensor is 0.994.The self-recording rainfall also is obviously linearly related to the manual observation.
Keywords:self-recording observation  automatic observation  rainfall  rainy day  correlation
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