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Visualized localization and tracking of debris flow movement based on infrasound monitoring
Liu, Dunlong1; Leng, Xiaopeng2,3; Wei, Fangqiang3; Zhang, Shaojie3; Hong, Yong3
Source PublicationLANDSLIDES
Contribution Rank3
AbstractDuring the initiation and movement of debris flow, low frequency infrasound is generated and emitted with characteristics such as strong penetration, low attenuation, and a high propagation speed that is faster than the debris flow. Monitoring infrasound has been used in debris flow detection and early warning systems; however, although the current infrasound-based warning system of debris flow can provide an alarm when debris flow occurs, it cannot locate and track the movement of debris flow in real time, and cannot determine the arrival time of debris flow to its potential victims. Thus, the potential applications of low frequency infrasound in debris flow disaster prevention and reduction have not yet been fully explored. In this study, we constructed an optimal triangular monitoring array based on factors such as the terrain of the monitoring area and characteristics of infrasound propagation. Combined with the time-delay estimation method, we determined and established an acoustic source localization model based on the time difference of arrival. Furthermore, with the help of a GIS platform, a visualized localization and tracking system for debris flow movement was developed to achieve real-time monitoring of debris flow. The performance of the system on acoustic source localization was validated using a simulation test and long-term field monitoring of debris flow at Jiangjia gully in Dongchuan, Yunnan province, China. Both the simulation and field test results showed that the system has high localization accuracy and strong real-time response. The results of the monitoring system could provide more accurate warning information of debris flow to local government and residents, allowing them to take appropriate mitigation measures well in advance to reduce the loss of life and property caused by debris flows.
KeywordDebris flow Infrasound Monitoring Visualized localization
Indexed BySCI
Funding ProjectScience and Technology Service Network Initiative[KFJ-SW-STS-180] ; Scientific Research Foundation of CUIT[KYTZ201616] ; National Natural Science Foundation of China[41501114] ; College students' Innovative Entrepreneurial Training Plan[201610621002]
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000431308800004
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLeng, Xiaopeng
Affiliation1.Chengdu Univ Informat Technol, Coll Software Engn, Chengdu 610225, Sichuan, Peoples R China
2.Chengdu Univ Technol, Coll Informat Sci & Technol, Chengdu 610059, Sichuan, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R 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
GB/T 7714
Liu, Dunlong,Leng, Xiaopeng,Wei, Fangqiang,et al. Visualized localization and tracking of debris flow movement based on infrasound monitoring[J]. LANDSLIDES,2018,15(5):879-893.
APA Liu, Dunlong,Leng, Xiaopeng,Wei, Fangqiang,Zhang, Shaojie,&Hong, Yong.(2018).Visualized localization and tracking of debris flow movement based on infrasound monitoring.LANDSLIDES,15(5),879-893.
MLA Liu, Dunlong,et al."Visualized localization and tracking of debris flow movement based on infrasound monitoring".LANDSLIDES 15.5(2018):879-893.
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