quot;MARGIN: 0cm 0cm 0pt" class=MsoNormal>quot;FONT-SIZE: 14pt" lang=EN-US>quot;Times New Roman">In this paper, the authors conducted damage identification for Yingxiu town and its adjacent areas with ENVISAT ASAR as data source, using amplitude of multi-temporal radar data and phase information. The ratio change detection using pre-and post-earthquake amplitude images yielded satisfying results in Yingxiu town and Zipingpu reservoir. After decorrelation analysis, the coherence images obtained by interferometric processing with phase information showed that the damage grade of a building is highly related to the variability index of coherence coefficient. This study shows that the combination of SAR amplitude imaging and interferometric coherence imaging can produce better results in earthquake disaster assessment. quot;urn:schemas-microsoft-com:office:office" />
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