基于GPS监测数据的全国可降水汽量获取

PWV Distribution Acquisition Based on GPS Deformation Monitoring Data

基于GPS形变监测数据可以获得可降水汽量。利用GPS监测数据进行不同解算策略下的精度对比。实验结果证明,当参数设置为7或13时,可以获得较高精度的可降水汽量,同时得到较好的基线解。在此基础之上,利用分布于全国的185个GPS连续监测站2011年年积日57日的数据,进行全国范围内水汽量的计算,并绘制全国可降水汽分布图。

PWV can be calculated by the GPS deformation monitoring data. The precision of PWV calculating by GAMIT using GPS data under different processing strategy was compared, the results showed that when parameter was set as 7 or 13, we could get high precision of PWV, as well as baseline processing result. On the base of above research, data of 185 GPS stations in 2011, DOY 57 was processed to get the PWV of china, and then plotted the PWV distribution figure of China.