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Debris-flows scale predictions based on basin spatial parameters calculated from Remote Sensing images in Wenchuan earthquake area
Language英语
Zhang Huaizhen1,3; Chi Tianhe1; Fan Jianrong2; Liu Tianyue1,3; Wang Wei1,3; Yang Lina1; Zhao Yuan1,3; Shao Jing1,3; Yao Xiaojing1,3
Corresponding AuthorJianrong Fan
2014
Source Publication35TH INTERNATIONAL SYMPOSIUM ON REMOTE SENSING OF ENVIRONMENT (ISRSE35)
Volume17
PagesUNSP 012091
meeting35th International Symposium on Remote Sensing of Environment (ISRSE35)
Conference DateAPR 22-26, 2013
Conference PlaceInst Remote Sensing & Digital Earth, Beijing
CountryPEOPLES R CHINA
Publication PlaceBRISTOL
PublisherIOP PUBLISHING LTD
Contribution Rank2
Funding OrganizationInternational Society for Digital Earth ; The Center for Earth Observation and Digital Earth (CEODE), Chinese Academy of
AbstractDebris flow is a common hazard in the Wenchuan earthquake area. Collapse and Landslide Regions (CLR), caused by earthquakes, could be located from Remote Sensing images. CLR are the direct material source regions for debris flow. The Spatial Distribution of Collapse and Landslide Regions (SDCLR) strongly impact debris-flow formation. In order to depict SDCLR, we referred to Strahler's Hypsometric analysis method and developed 3 functional models to depict SDCLR quantitatively. These models mainly depict SDCLR relative to altitude, basin mouth and main gullies of debris flow. We used the integral of functions as the spatial parameters of SDCLR and these parameters were employed during the process of debris-flows scale predictions. Grouping-occurring debris-flows triggered by the rainstorm, which occurred on September 24th, 2008 in Beichuan County, Sichuan province China, were selected to build the empirical equations for debris-flows scale predictions. Given the existing data, only debris-flows runout zone parameters (Max. runout distance L and Lateral width B) were estimated in this paper. The results indicate that the predicted results were more accurate when the spatial parameters were used. Accordingly, we suggest spatial parameters of SDCLR should be considered in the process of debris-flows scale prediction and proposed several strategies to prevent debris flow in the future.
Subject Area摄影测量与遥感技术
DOI10.1088/1755-1315/17/1/012091
ISSN1755-1307
Indexed ByEI ; CPCI
WOS IDWOS:000341299300091
EI Accession NumberAccession number:20142517832974
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7545
Collection数字山地与遥感应用中心
Corresponding AuthorFan Jianrong
Affiliation1.Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, North No.20 Datun Road, Chaoyang District, Beijing 100101, China;
2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, No.9, Renminnanlu Road, Chengdu 610041, China;
3.University of Chinese Academy of Sciences, No.19A, Yuquan Road, Shijingshan District, Beijing 100049, China
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
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Zhang Huaizhen,Chi Tianhe,Fan Jianrong,et al. Debris-flows scale predictions based on basin spatial parameters calculated from Remote Sensing images in Wenchuan earthquake area[C]. BRISTOL:IOP PUBLISHING LTD,2014:UNSP 012091.
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