Abstract: This paper mainly discusses the method of calculating Precipitable Water Vapor at Arctic Yellow River Station by using ground-based GPS technique. Three factors Zenith Total Delay, Zenith Hydrostatic Delay and weighed mean temperature which effect PWV are analyzed, the reliability of Zenith Total Delay and Zenith Hydrostatic Delay is proved, we also get the model of weighed mean temperature fits for Yellow River Station region located in Arctic. With the comparison of GPS Precipitable Water Vapor and the result of radiosonde, the root mean square is less than 2 mm.

Key words: Arctic Yellow River Station, Troposphere Zenith Delay, precipitable water vapor, weighed mean temperature, radiosonde