TEST OF INSAR COSEISMIC DEFORMATIONS FIELDOF WENCHUAN M w7.9 EARTHQUAKE
Tan Kai 1,2) ; Shen Qiang 1,2) ; Qiao Xuejun 1,2) ; and Yang Shaomin 1,2)
1) Institute of Seismology,CEA,Wuhan 4300712) Crustal Movement Laboratory, Wuhan 430071
Abstract The InSAR coseismic deformation interferogrames derived from ALOS PALSAR data caused by the Wenchuan Mw7.9 earthquake was tested by using GPS measurements. There are constant errors between two sides of the rupture, and bilinear errors of one side of the rupture.It is believed that the constant errors is caused by the phase difference and bilinear errors by the satellite orbit offset error. The InSAR coseismic deformation field calibrated by GPS data are consistent with the forward model inverted from earthquake wave results, the error of calibrated InSAR coseismic deformation is about 5 cm.
Key words :
Wenchuan Mw7.9 earthquake
InSAR
coseismic deformation
Longmenshan fault
GPS
Received: 01 January 1900
Corresponding Authors:
Tan Kai
Cite this article:
Tan Kai,Shen Qiang,Qiao Xuejun et al. TEST OF INSAR COSEISMIC DEFORMATIONS FIELDOF WENCHUAN M w7.9 EARTHQUAKE[J]. , 2010, 30(2): 14-18.
Tan Kai,Shen Qiang,Qiao Xuejun et al. TEST OF INSAR COSEISMIC DEFORMATIONS FIELDOF WENCHUAN M w7.9 EARTHQUAKE[J]. jgg, 2010, 30(2): 14-18.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2010/V30/I2/14
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