Two-dimensional Co-Seismic Surface Displacement Associated with Wenchuan Earthquake Measured Using PALSAR and ASAR Data
Xiaoli Ding(1), Guangcai Feng(1), Lei Zhang(1), Jiangping Long(1), Zhiwei Li(2), Jun Hu(2) and Jixian Zhang(3)
(1) The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
(2) The Central South University, Dept of Info-Physics, Changsha, China
(3) The Academy of Surveying and Mapping of China, -, Beijing, China
We use both ALOS PALSAR and ENVISAT ScanSAR data to map the two-dimensional coseismic ground surface deformations associated with the Mw = 8.0 earthquake that occurred in Sichuan Province, China on 12 May 2008. Both the differential interfrometric synthetic aperture radar (DInSAR) and the sub-pixel SAR amplitude image matching methods are used in processing the data. The results from the different data sources and data processing methods are integrated to geenerate the final two-dimensional co-seismic deformation map of the earthquake area.