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Research on the distribution characteristics of secondary geological disasters induced by 5.12 earthquake in Wenchuan county based on RS and GIS
Language英语
Yu, Hui1; Luo, Yong1; Zheng, Zhi-Jun2; Sun, Yu-Lian1; Ma, Yue-Wei1
2011
Source PublicationProceedings of SPIE - The International Society for Optical Engineering
Author of SourceSPIE
Volume8009
Pages80091C
meetingThird International Conference on Digital Image Processing, ICDIP 2011
Conference Date2011-4-15
Conference PlaceChengdu
CountryChina
Contribution Rank1
AbstractField 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.
KeywordWenchuan Earthquake Secondary Geological Disasters Distribution Characteristics arthquakedamaged Slash Disaster Density RS GIS
DOI10.1117/12.896302
ISBN9780819485830
ISSN0277786X
Indexed ByEI
Accession numberAccession number:;20113114196300
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/25939
Collection山区发展研究中心
Affiliation1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
2.Geological Environment Monitoring Station, Chengdu 610041, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
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]//SPIE,2011:80091C.
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