| 光谱学与光谱分析 |
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| Investigation and Assessment of Damage in Earthquake in Yushu, Qinghai Based on Multi-Spectral Remote Sensing |
| WANG Fu-tao1,2, ZHOU Yi1*, WANG Shi-xin1, LIU Wen-liang1,2, WEI Cheng-jie1, HAN Yu1,2 |
1. The State Key Laboratory of Remote Sensing Science，Institute of Remote Sensing Applications of Chinese Academy of Sciences, Beijing 100101, China
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract The devastating Yushu Earthquake occurred in Qinghai Province, northwest China, with a magnitude of 7.1 on Apirl 14, 2010, which has caused huge destructive losses. Most buildings along the seismic zone were ruined, especially the old and the basic civil structure houses completely destroyed. The earthquake also triggered geological disasters, such as landslides, collapses, debris flows, etc. In the present study, the remote sensing technique was used to assess and analyze the situation of the earthquake damage. There are four classes of feature which can be interpreted according to the remote sensing imageries: (1) the damage degree of buildings, like civilian homes, temples; (2) the field disasters of earthquake, such as ground fissures, landslides, collapses, debris flows, and earthquake subsidence; (3) the damage degree of structures, such as dam; (4) the damage degree of the lifeline, for example, the highway. The features can be obtained according to high spatial resolution of remote sensing imageries, through image processing and interpretation methods. Post-disaster rehabilitation and reconstruction phase should fully consider the regional seismotectonic background and the carrying capacity of resources and environment. With the assessment results of earthquake disaster remote sensing, at last, preliminary suggestions were proposed for the rehabilitation and reconstruction planning of Yushu earthquake.
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Received: 2010-05-14
Accepted: 2010-08-03
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Corresponding Authors:
ZHOU Yi
E-mail: zhouyi@irsa.ac.cn
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[1] LIU Jia-hang, YANG Jian-feng, WEI Cheng-jie, et al(柳稼航，杨建峰，魏成阶，等). Journal of Natural Disasters(自然灾害学报)，2004，13(5)：46.
[2] WEI Cheng-jie, LIU Ya-lan, WANG Shi-xin, et al(魏成阶，刘亚岚，王世新，等). Journal of Remote Sensing(遥感学报), 2008, 12(5)：673.
[3] WANG Shi-xin, ZHOU Yi, WEI Cheng-jie, et al(王世新，周 艺，魏成阶，等). Journal of Remote Sensing(遥感学报)，2009，13：364.
[4] WEI Cheng-jie, LIU Ya-lan, WANG Shi-xin, et al(魏成阶, 刘亚岚, 王世新，等). Remote Sensing in China(遥感在中国). Beijing：Press of Earthquake(北京：地震出版社), 2000.
[5] WANG Shi-xin, ZHOU Yi, WEI Cheng-jie, et al(王世新, 周 艺，魏成阶，等). Journal of Remote Sensing(遥感学报), 2008, 12(6)：900.
[6] China Earthquake-Site Emergency Response Team. 2010. http://www.cea.gov.cn.
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