Automatic identification of buildings vulnerable to debris flows in Sichuan Province, China, by GIS analysis and Deep Encoding Network methods | |
Wei, Li1,3,4; Hu, Kaiheng1,3,4; Liu, Jin2 | |
刊名 | JOURNAL OF FLOOD RISK MANAGEMENT |
2022-06-14 | |
页码 | 18 |
关键词 | building extraction building position debris flow hazards GF-2 satellite image vulnerability matrix |
ISSN号 | 1753-318X |
DOI | 10.1111/jfr3.12830 |
英文摘要 | Debris flows commonly cause tremendous damage to buildings in mountainous areas. The identification of buildings susceptible to debris flows is vital for settlement risk management. The efficient identification method is a major issue limiting the targeted regional policy setting. By combining geographic information system (GIS) and Deep Encoding Network (DE-Net) methods, we proposed an automatic identification method for buildings highly susceptible to debris flows with large-scale digital elevation data and high-resolution remote sensing imagery. The judgment criteria were based on a vulnerability matrix containing different threshold values of the horizontal distance (HD) and vertical distance (VD) between buildings and channels obtained from the statistics of 362 buildings destroyed by 23 debris flows and the maximum debris flow depths of 26 events, respectively. Five steps, which are debris flow channel extraction, building extraction, building cluster segmentation, distance calculation, and building classification, were implemented in the method. A case study in Puge County, Sichuan Province, demonstrated the high identification potential of the method for buildings susceptible to debris flows in large areas with only scarce information available. The identification results provide valuable information regarding high-risk residential areas to governments and facilitate targeted measure design in these areas in the initial planning stage. |
资助项目 | National Natural Science Foundation of China[4179043] ; Research on Intelligent Monitoring and Early Warning Technology of Debris Flow on Sichuan-Tibet Railway[K2019G006] |
WOS关键词 | MAGNITUDE-FREQUENCY RELATIONSHIPS ; QUANTITATIVE RISK ANALYSIS ; 2008 WENCHUAN EARTHQUAKE ; URBAN AREAS ; LANDSLIDES ; EXTRACTION ; DAMAGE ; IMPACT ; HAZARD |
WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
语种 | 英语 |
出版者 | WILEY |
WOS记录号 | WOS:000810589900001 |
资助机构 | National Natural Science Foundation of China ; Research on Intelligent Monitoring and Early Warning Technology of Debris Flow on Sichuan-Tibet Railway |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/56712] |
专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
通讯作者 | Hu, Kaiheng |
作者单位 | 1.Minist Water Conservancy & Power, Chengdu, Peoples R China 2.Three Gorges Jinsha River Chuanyun Hydropower Dev, Chengdu, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China 4.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu, Peoples R China |
推荐引用方式 GB/T 7714 | Wei, Li,Hu, Kaiheng,Liu, Jin. Automatic identification of buildings vulnerable to debris flows in Sichuan Province, China, by GIS analysis and Deep Encoding Network methods[J]. JOURNAL OF FLOOD RISK MANAGEMENT,2022:18. |
APA | Wei, Li,Hu, Kaiheng,&Liu, Jin.(2022).Automatic identification of buildings vulnerable to debris flows in Sichuan Province, China, by GIS analysis and Deep Encoding Network methods.JOURNAL OF FLOOD RISK MANAGEMENT,18. |
MLA | Wei, Li,et al."Automatic identification of buildings vulnerable to debris flows in Sichuan Province, China, by GIS analysis and Deep Encoding Network methods".JOURNAL OF FLOOD RISK MANAGEMENT (2022):18. |
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