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气象:2003,29(1):35-38
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Ⅱ型自动站与常规站温湿度观测记录的比较
(上海市奉贤区气象局,上海 201403)
Comparison of Temperature and Relative Humidity between Automatic Weather Station Type 2 and Conventional Observation Station
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中文摘要: 通过对2001年1月~2002年4月Ⅱ型自动站与常规站温、湿度观测值和极值的统计分析,结果表明:受观测仪器系统偏差和观测取值时间差异的影响,日平均气温Ⅱ型自动站比常规站低0.2℃,日平均相对湿度高+2%。同时温、湿度极值Ⅱ型自动站与常规站偏差存在非线性变化,月最低气温极值差值在最低气温高于8℃时呈正值变化,低于8℃时呈负值变化;月最高气温极值差值大多呈负值变化,夏季比其它季节明显;月最小相对湿度差值在最小相对湿度<35%时正负值变化不稳定,最小相对湿度≥35%时为正值
Abstract:Based on the observations and extremes of temperature and relative humidity of automatic weather station type 2(AWS Ⅱ) and conventional observation station during January 2001 through April 2002, their statistical results are given. It is shown that owing to systematical error of observed instrument and time difference in observation, mean daily temperature of automatic weather station is 0 2℃ lower than that of conventional observation station, mean daily relative humidity is 2% higher than that. The difference of extremes of temperature and relative humidity exists nonlinear variation. Monthly minimum temperature exists positive value change for minimum temperature being over 8℃,exists negative value change for that below 8℃. Most of the difference of extremes of monthly maximum temperature exists negative value change, which in summer is more obviously than that in other seasons. The difference of minimum monthly relative humidity with <35% appears instability but positive value change with ≥35%.
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引用文本:
顾品强,王美华,2003.Ⅱ型自动站与常规站温湿度观测记录的比较[J].气象,29(1):35-38.
,2003.Comparison of Temperature and Relative Humidity between Automatic Weather Station Type 2 and Conventional Observation Station[J].Meteor Mon,29(1):35-38.