Research on the distribution characteristics of secondary geological disasters induced by 5.12 earthquake in Wenchuan county based on RS and GIS

doi:10.1117/12.896302

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山区发展研究中心

	Research on the distribution characteristics of secondary geological disasters induced by 5.12 earthquake in Wenchuan county based on RS and GIS
	Yu, Hui1 ; Luo, Yong1 ; Zheng, Zhi-Jun 2; Sun, Yu-Lian 1; Ma, Yue-Wei 1
	2011
会议日期	2011-4-15
会议地点	Chengdu
关键词	Wenchuan Earthquake Secondary Geological Disasters Distribution Characteristics arthquakedamaged Slash Disaster Density RS GIS
卷号	8009
DOI	10.1117/12.896302
页码	80091C
国家	China
英文摘要	Field observation, remote sensing combined with GIS technique were adopted to analysis thespatial distribution characteristics of secondary geological disasters induced by Wenchuan earthquake.The study results show that: (1) The earthquake-damaged slash mostly distributed in the two sides ofmain fault zones, earthquake-affected areas and disaster density decreased with the increase of distance from the main fault. (2) The earthquake-damaged slash mostly distributed in seismic intensity of IX and above. The region with greater seismic intensity had larger disaster density. Collapse and landslidedistributed in high seismic intensity zone. (3) Hard rocks were easily caused secondary geologicaldisasters by seismic waves. (4) The earthquake damaged slash mostly distributed within 0.5 km away fromthe river and decreased with the increase of distance from river. Collapse and landslide often appear at valley and the steep slope which more than 40 degree. The biggest hazard density appeared at altitude between 2000 m and 2500 m.
源文献作者	SPIE
产权排序	1
会议录	Proceedings of SPIE - The International Society for Optical Engineering
语种	英语
ISSN号	0277786X
ISBN号	9780819485830
内容类型	会议论文
源URL	[http://ir.imde.ac.cn/handle/131551/25939]
专题	成都山地灾害与环境研究所_山区发展研究中心成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 2.Geological Environment Monitoring Station, Chengdu 610041, China
推荐引用方式 GB/T 7714	Yu, Hui,Luo, Yong,Zheng, Zhi-Jun,et al. Research on the distribution characteristics of secondary geological disasters induced by 5.12 earthquake in Wenchuan county based on RS and GIS[C]. 见:. Chengdu. 2011-4-15.