Application of SAR data to monitoring of earthquake disaster

Details Application of SAR data to monitoring of earthquake disaster Application of SAR data to monitoring of earthquake disaster

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997adspr..19.1429o&link_type=abstract

Advances in Space Research, Volume 19, Issue 9, p. 1429-1436.

Computer Science

Scientific paper

Surface changes and displacement caused by the Hyogoken-nanbu earthquake on 17 January 1995 are detected using JERS-1 SAR images with interferometric radar technology. The SAR signal data covering the damaged area were contaminated by serious bright line noise caused by interference with a ground radar system. With a spectral filtering technique, the signal data were processed into clear images. Collapsed non-wooden buildings and guarys were detected by comparing pixel brightness between a pair of images before and after the earthquake. A phase interferogram of the two images shows 0.6 m surface displacement along the radar line-of-sight direction around Kobe City, while it is 1.1 meter in Awaji Island where epicenter is located.

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