Research results were showed as follows:The distribution of the precipitable water retrieved from satellite data was of well spatial and temporal resolutions.

• 用地面湿度参量资料(地面水汽压)估算晴空大气可降水量，其单站的估算结果比用卫星资料反演的结果要精确，但是估算的水汽场时空分辨率不如卫星资料反演的高。