IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
Calibration of infrasound monitoring system and acoustic characteristics of debris-flow movement by field studies
Language英语
Chou, HT1; Cheung, YL1; Zhang, SC2
2007
Source PublicationDEBRIS-FLOW HAZARDS MITIGATION: MECHANICS, PREDICTION, AND ASSESSMENT
Author of SourceChen, CL ; Major, JJ
Pages571-580
meeting4th International Conference on Debris-Flow Hazards Mitigation - Mechanics, Prediction and Assessment
Conference DateSEP 10-13, 2007
Conference PlaceChengdu
CountryPEOPLES R CHINA
Publication PlaceROTTERDAM
PublisherMILLPRESS SCIENCE PUBLISHERS
Contribution Rank2
AbstractNaturally occurring infrasounds produced by debris flows are explored in this Study by examining the field data both in Jiangjia Gully, Yunnan and Houyenshan, Taiwan, respectively. Infrasound propagates to long distance in the atmosphere at the speed Of Sound for the low adsorption in the air and the high reflectivity of the ground. The infrasonic signals induced by debris flows are related to the magnitude and composition of the failure zone as well as the slope areas. In Jiangjia Gullies, the peak frequency of infrasounds is about 6 Hz when debris flow discharges are less than 500 m(3)/s. While the peak frequency decreases with the increasing discharge of debris flows. The stony debris flows Occur in Houyenshan with the peak frequencies between 5-15 Hz during the surges. Non-stationary acoustic signals of the debris flows are analyzed by adopting the HHT approach.
Keywordinfrasound monitoring system debris flow acoustic characteristics field studies
ISBN978-90-5966-059-5
Indexed ByEI ; CPCI
Accession numberAccession number:20085211816285
WOS IDWOS:000267333300056
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33500
Collection成都山地所知识仓储(2009年以前)
Corresponding AuthorChou, HT
Affiliation1.Department of Civil Engineering, National Central University, Chung-Li, Chinese Taipei;
2.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Resources,Chengdu, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
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
Chou, HT,Cheung, YL,Zhang, SC. Calibration of infrasound monitoring system and acoustic characteristics of debris-flow movement by field studies[C]//Chen, CL, Major, JJ. ROTTERDAM:MILLPRESS SCIENCE PUBLISHERS,2007:571-580.
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