ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., III-8, 35-42, 2016
http://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/III-8/35/2016/
doi:10.5194/isprs-annals-III-8-35-2016
 
07 Jun 2016
ESTIMATION OF DAMAGED AREAS DUE TO THE 2010 CHILE EARTHQUAKE AND TSUNAMI USING SAR IMAGERY OF ALOS/PALSAR
Pertiwi Jaya Ni Made, Fusanori Miura, and A. Besse Rimba Yamaguchi University, Graduate School of Science and Engineering, Disaster Prevention System Engineering, Ube City, Yamaguchi Prefecture 755-0097, Japan
Keywords: Damaged Areas Estimation, SAR Imagery, ALOS/PALSAR, the 2010 Chile Earthquake and Tsunami Abstract. A large-scale earthquake and tsunami affect thousands of people and cause serious damages worldwide every year. Quick observation of the disaster damage is extremely important for planning effective rescue operations. In the past, acquiring damage information was limited to only field surveys or using aerial photographs. In the last decade, space-borne images were used in many disaster researches, such as tsunami damage detection. In this study, SAR data of ALOS/PALSAR satellite images were used to estimate tsunami damage in the form of inundation areas in Talcahuano, the area near the epicentre of the 2010 Chile earthquake. The image processing consisted of three stages, i.e. pre-processing, analysis processing, and post-processing. It was conducted using multi-temporal images before and after the disaster. In the analysis processing, inundation areas were extracted through the masking processing. It consisted of water masking using a high-resolution optical image of ALOS/AVNIR-2 and elevation masking which built upon the inundation height using DEM image of ASTER-GDEM. The area result was 8.77 Km2. It showed a good result and corresponded to the inundation map of Talcahuano. Future study in another area is needed in order to strengthen the estimation processing method.
Conference paper (PDF, 1371 KB)


Citation: Ni Made, P. J., Miura, F., and Rimba, A. B.: ESTIMATION OF DAMAGED AREAS DUE TO THE 2010 CHILE EARTHQUAKE AND TSUNAMI USING SAR IMAGERY OF ALOS/PALSAR, ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., III-8, 35-42, doi:10.5194/isprs-annals-III-8-35-2016, 2016.

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