气候变化领域集成服务门户(CCPortal): Research on the Response Characteristics and Identification of Infrasound Signals in the Jialongcuo Ice Avalanche, Tibet

CCPortal

DOI	10.3390/rs15184482
	Research on the Response Characteristics and Identification of Infrasound Signals in the Jialongcuo Ice Avalanche, Tibet
	Zhang, Yifang; Chen, Qiao; Su, Pengcheng; Liu, Dunlong; Cui, Jianzhao; Chen, Jilong; Ma, Jianrong; Xing, Qiao; Xu, Fenglin; Fan, Yuanchao; Wei, Fangqiang
发表日期	2023
EISSN	2072-4292
卷号	15 期号:18
英文摘要	Due to the inability of remote sensing satellites to monitor avalanches in real time, this study focuses on the glaciers in the rear edge of Jialongcuo, Tibet, and uses infrasound sensors to conduct real-time monitoring of ice avalanches. The following conclusions are drawn: (1) In terms of waveform, compared to background noise, ice avalanche events have a slight left deviation and a slightly steep shape; compared to wind, rain, and floods events, ice avalanche events have less obvious kurtosis and skewness. (2) In terms of frequency distribution, the infrasound frequency generated by ice avalanche events is mainly distributed in the range of 1.5 Hz to 9.5 Hz; compared to other events, ice avalanche events differ some in frequency characteristics. (3) The model based on information entropy and marginal spectral frequency distribution characteristics of infrasound have higher accuracy in signal classification and recognition, as they can better represent the differences between infrasound signals of different events than other features. (4) Compared with the K-nearest neighbor algorithm and classification tree algorithm, the support vector machine and BP (Back Propagation) neural network algorithm are more suitable for identifying infrasound signals in the Jialongcuo ice avalanche. The research results can provide theoretical support for the application of infrasound-based ice avalanche monitoring technology.
关键词	ice avalanche ice lake collapse infrasound signal feature extraction classified recognition
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001074531300001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283146
作者单位	Chinese Academy of Sciences; Chongqing Institute of Green & Intelligent Technology, CAS; Chinese Academy of Sciences; Institute of Mountain Hazards & Environment, CAS; Chengdu University of Information Technology; Tsinghua University; Tsinghua Shenzhen International Graduate School; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Zhang, Yifang,Chen, Qiao,Su, Pengcheng,et al. Research on the Response Characteristics and Identification of Infrasound Signals in the Jialongcuo Ice Avalanche, Tibet[J],2023,15(18).
APA	Zhang, Yifang.,Chen, Qiao.,Su, Pengcheng.,Liu, Dunlong.,Cui, Jianzhao.,...&Wei, Fangqiang.(2023).Research on the Response Characteristics and Identification of Infrasound Signals in the Jialongcuo Ice Avalanche, Tibet.REMOTE SENSING,15(18).
MLA	Zhang, Yifang,et al."Research on the Response Characteristics and Identification of Infrasound Signals in the Jialongcuo Ice Avalanche, Tibet".REMOTE SENSING 15.18(2023).