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| 影响人工站与自动站水汽压差值原因探究 | |
| 引用本文： | 王海军,蒲晓勇,杨志彪,张峻,刘莹.影响人工站与自动站水汽压差值原因探究[J].气象科技,2012,40(1):25-30. |
| 作者姓名： | 王海军 蒲晓勇 杨志彪 张峻 刘莹 |
| 作者单位： | 1. 湖北省气象信息与技术保障中心武汉430074;湖北省气象局气候变化中心,武汉430074 2. 湖北省气象信息与技术保障中心武汉430074 3. 湖北省气象局,武汉,430074 |
| 基金项目： | 中国气象局气象新技术推广重点项目（CMATG2006Z03）、武汉区域气象中心重点项目（QYZ200708）和湖北省气象局基金课题（2009Y02）资助 |
| 摘 要： | 为探究人工观测气象站与自动站水汽压差值产生原因,利用全国134个1年的基准气象观测站逐时气压、干球气温、湿球温度等资料,分别采用人工站和自动站水汽压计算公式,模拟了本站气压、干球温度、湿球温度、自动站气温、相对湿度等要素产生一增量时,水汽压所对应变化量随各要素的变化规律,并分析了影响水汽压差值与其主导因子定量关系。通过实际观测资料的数据模拟分析,气压和干球温度的系统误差对人工与自动观测站的水汽压差值影响很小,而自动站的相对湿度和气温对水汽压差值影响较大,其中相对湿度的影响最明显。当自动站的相对湿度或气温的系统误差为一固定值时,水汽压差值变化幅度随气温大小变化,气温越高,水汽压差值越大。 |
| 关 键 词： | 自动站 人工站 水汽压 |
| 收稿时间： | 6/6/2010 12:00:00 AM |
| 修稿时间： | 2011/9/22 0:00:00 |
Causal Study of Differences in Water Vapor Pressure Measurements between Manual and Automatic Weather Stations |
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| Wang Haijun,Pu Xiaoyong,Yang Zhibiao,Zhang Jun and Liu Ying.Causal Study of Differences in Water Vapor Pressure Measurements between Manual and Automatic Weather Stations[J].Meteorological Science and Technology,2012,40(1):25-30. | |
| Authors: | Wang Haijun Pu Xiaoyong Yang Zhibiao Zhang Jun and Liu Ying |
| Institution: | 1 Hubei Meteorological Information and Technology Support Center,Wuhan 430074; 2 Climate Center,Hubei Meteorological Service,Wuhan 430074;3 Hubei Meteorological Service,Wuhan 430074) |
| Abstract: | To explore the causes of the differences in water vapor pressure measurements between manual and automatic weather stations, based on the data of hourly air pressure, dry bulb temperature, and wet bulb temperature from 134 national reference climate stations, by using the water vapor pressure formulas on manual observation weather station and automatic weather station respectively, the regularities of water vapor pressure variation are studied corresponding to the increments of the station air pressure, dry bulb temperature, wet bulb temperature, automatic weather station temperature, and relative humidity. Through analyzing the meteorological observation data, the causes of the differences in water vapor pressure measurments between manual and automatic weather stations are discussed. Through the simulation and analysis of actual observation data, it is found that the influence of the systematic errors of air pressure and dry bulb temperature on the difference in water vapor pressure measurments between manual and automatic weather stations is very small, while the influences of the relative humidity and temperature of automatic weather stations are significant, especially relative humidity. For the given systematic errors of relative humidity and temperature of automatic weather stations, the variation range of the differences in water vapor pressure measurments varies with temperature, the higher the temperature, the greater the differences of water vapor pressure. |
| Keywords: | automatic weather station manual observation water vapor pressure |
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