GROUND DISPLACEMENT AND BUILDING DAMAGE ESTIMATION OF THE 2017 KERMANSHAH EARTHQUAKE USING SAR REMOTE SENSING

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 322

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شناسه ملی سند علمی:

SEE08_240

تاریخ نمایه سازی: 27 خرداد 1399

چکیده مقاله:

We used two synthetic aperture radar (SAR) datasets with different resolution to monitor the Kermanshah earthquake displacements and the buildings in Sarpole-Zahab town. We have obtained two high resolution dual-polarized (HH and HV) ALOS-2 images in stripmap (SM) mode and three dual-polarized (VV and VH) Sentinel-1 images in interferometric wide (IW) mode from ascending orbits. The incidence angle of ALOS-2 and Sentinel -1 datasets were 36.2° and 38.9°, respectively. Temporal baseline of ALOS-2 dataset is 42 days, whereas pre-event and co-seismic temporal baselines of Sentinel-1 dataset are 13 and 18 days, respectively. Human activities after disasters increase and deteriorate the damage proxy maps which sometimes make the damage proxy maps meaningless. Thus, we need post-event images with shortest gaps with the event. Since the revisit cycle of ALOS-2 is rather large, we only use two ALOS-2 images to calculate ground displacement

نویسندگان

Sadra Karimzadeh

Assistant Professor, University of Tabriz, Iran

Masashi Matsuoka

Professor, Tokyo Institute of Technology, Tokyo, Japan