Study on remote sensing atmospheric water vapor content in antarctic using GPS technology

At present,with the gradual establishment and perfection of reference station network throughout the world,the application of ground-based GPS meteorology in all localities is gradually universal,but the application in Antarctic is rarely involved.The change of weather in Antarctic has a direct effect.It can provide reference for global climate analysis to study atmospheric water vapor content in Antarctic.In this paper,the tropospheric zenith total delay on Great Wall station is solved according to the best network program.Based on improved Hopfield model and local weighted average temperature model,the precipitable water vapor(PWV) is calculated.By comparing it with the actual precipitation,it shows that the difference between them is very little and the method of high-precision PWV solved by GPS data in Antarctic is correct.