基于INSAR的新疆喀什地区地震研究

AbstractIn order to study the impact of the earthquake on January 19,2020 in the north of JiashiCounty,Kashgar,Xinjiang,the interferometric measurement of the earthquake area usingD-InSAR technology was obtained Data of surface shape variable in earthquake area.Underthe SARscape software,by introducing 4 scenes of Sentinel-1A radar images provided by theEuropean Space Agency,and the corresponding 21-day precision orbit parameter file andSRTM version 4 data of the earthquake zone,the data processing process is reduced fromboth space and ground aspects Error,improve the measurement accuracy of the earthquakezone.The results show that the surface deformation caused by the earthquake is mainly uplift,and the fault rupture is mainly thrust nappe,with a small amount of strike slip.The ascendingand descending orbit images are not identical to the coseismic deformation field obtainedafter processing,but the overall change trend is the same.It has a great influe-nce on TuheHighway,China National Highway 314 and other townships such as Yudai Kalik townshipand Gularuk township.Using the sentinel satellite SAR data to measure the deformation in theseismic area can get better interference results.Keywords:earthquake;Sentinel satellite;InSAR;D-InSAR;two track method