USING ULTRA LONG BASELINE TO MEASURE CO-SEISMIC KINEMATIC DEFORMATIONS OF WENCHUAN EARTHQUAKE
用超长基线解算分析汶川地震动态形变特征

We used Wuhan,one of IGS stations,as a reference to form ultra long baseline and solve instantaneous 1-Hz-GPS positions and measure the co-seismic kinematic deformations caused by Wenchuan earthquake.Compared with the results from using Yaan as the reference which is nearby 1-Hz-GPS stations,the deformation solutions show good consistence with different reference stations.The maximum deformation amplitude is found for station Pixian,which had the largest deformation about 1.034 meter.The deformations of sta...