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The Empirical Expressions of the Relation between Precipitable Water and Ground Water Vapor Pressure for Some Areas in China

Yang Jingmei and Qiu Jinhuan(Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029)  
Based on the ground and radiosonde data at 20 stations in China from 1992 ̄1993, we have derived the empirical expressions of the relation between the precipitable water and ground water vapor pressure. The calculating results show that the precipitable water is well related with the ground water vapor pressure. The calculating results of precipitable water by using our empirical expressions agree well with the actual ones. The mean relative errors are less than 15%.
【Fund】: 国家自然科学基金
【CateGory Index】: P468.024
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