地基GPS不同水汽反演方法的误差分析

Error Analysis on Precipitable Water Derived from Ground-based GPS with Various Methods

摘要: 利用湖北宜昌2007年观测的GPS对流层天顶延迟数据,对采用不同水汽反演方法计算的对流层可降水量PW的正确度和精密度进行对比分析。结果显示:不同天顶干延迟计算模型对GPS PW的精密度影响不大,但对其正确度有明显的影响,与探空PW相

Abstract: Based on the ground-based GPS zenith delay data observed at Yichang in Hubei Province in 2007,precipitable water(PW) is derived with various methods and error analysis on GPS PW is carried out.The results show th