ON MONITORING TIANJIN AREA SUBSIDENCE FUNNEL WITH
PERSISTENT SCATTERERS INTERFEROMETRY
1）Jiangxi Electric Power Design Institute,Nanchang 330096
2）School of Geodesy and Geomatics, Wuhan Uuniversity,Wuhan 430079
3）GNSS Research Center, Wuhan University, Wuhan 430079
Abstract By using 38 ENVISAT ASAR images between 2003-10—2009-06 of TianJin area, we conduct the differential interferometry and PS pixel selection experiment, and then extract the subsidence of experimental area. According to the time and space characteristics, using space and time filter to separate the atmospheric delay, orbit error,DEM residual phase,we obtained average settlement rate of test site, and finally selected PS pixels in four typical regional mapped the time sequence settlement diagram.
Jin Zonghuang,Ding Shijun,Li Tao et al. ON MONITORING TIANJIN AREA SUBSIDENCE FUNNEL WITH
PERSISTENT SCATTERERS INTERFEROMETRY[J]. jgg, 2013, 33(2): 23-26.
Jin Zonghuang,Ding Shijun,Li Tao et al. ON MONITORING TIANJIN AREA SUBSIDENCE FUNNEL WITH
PERSISTENT SCATTERERS INTERFEROMETRY[J]. jgg, 2013, 33(2): 23-26.
