Paper
23 November 2011 Estimation of the building damages in Yushu earthquake based on ALOS SAR data
Lize Chen, Xuhui Shen, Shunying Hong, Ye Shao
Author Affiliations +
Proceedings Volume 8006, MIPPR 2011: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications; 800626 (2011) https://doi.org/10.1117/12.901873
Event: Seventh International Symposium on Multispectral Image Processing and Pattern Recognition (MIPPR2011), 2011, Guilin, China
Abstract
On April 14th, 2010, a large earthquake (Ms=7.1) shocked the Yushu county in the Qinghai Province at western China. It caused severe damages and fatalities. The purpose of this paper is to estimate the building damages caused by the earthquake based on pre and post earthquake ALOS SAR data. The distribution of the buildings in the Yushu city was extracted from the intensity images of the SAR data. Phase coherence between two scenes of SAR data were calculated to assess the building damages. The results show that the buildings close to the surface rupture caused by the earthquake are broken severely. The further to the surface rupture, the less damages of the buildings. It indicates that avoiding the potential rupture zone in the urban planning is necessary to mitigate the earthquake hazards.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lize Chen, Xuhui Shen, Shunying Hong, and Ye Shao "Estimation of the building damages in Yushu earthquake based on ALOS SAR data", Proc. SPIE 8006, MIPPR 2011: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications, 800626 (23 November 2011); https://doi.org/10.1117/12.901873
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KEYWORDS
Earthquakes

Synthetic aperture radar

Radar

Coherence (optics)

Data acquisition

Image processing

Vegetation

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