Zobrazeno 1 - 10 of 63 pro vyhledávání: '"JunLun Li"'
1
Akademický článek
High seismic velocity structures control moderate to strong induced earthquake behaviors by shale gas development
Autor: Junlun Li, Jian Xu, Haijiang Zhang, Wen Yang, Yuyang Tan, Fengshou Zhang, Lingyuan Meng, Yang Zang, Siyu Miao, Chang Guo, Zhenyue Li, Renqi Lu, Jianbao Sun
Publikováno v: Communications Earth & Environment, Vol 4, Iss 1, Pp 1-12 (2023)
Abstract Moderate to strong earthquakes have been induced worldwide by shale gas development, however, it is still unclear what factors control their behaviors. Here we use local seismic networks to reliably determine the source attributes of dozens
Externí odkaz: https://doaj.org/article/faab974ba06e496ab7c4f5140df44902
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2
Akademický článek
P-wave velocity structure in the crust and the uppermost mantle of Chao Lake region of the Tan-Lu Fault inferred from teleseismic arrival time tomography
Autor: Bem Shadrach Terhemba, Huajian Yao, Song Luo, Lei Gao, Haijiang Zhang, Junlun Li
Publikováno v: Earthquake Science, Vol 35, Iss 6, Pp 427-447 (2022)
Chao Lake is a Geoheritage site on the active Tan-Lu Fault between the Yangtze craton, the North China craton, and the Dabie orogenic belt in the southeast. This segment of the fault is not well constrained at depth partly due to the overprinting of
Externí odkaz: https://doaj.org/article/03522e40670d4bf7bf1ba0000d91e879
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3
Akademický článek
Determination of the local magnitudes of small earthquakes using a dense seismic array in the Changning−Zhaotong Shale Gas Field, Southern Sichuan Basin
Autor: Wen Yang, GuoYi Chen, LingYuan Meng, Yang Zang, HaiJiang Zhang, JunLun Li
Publikováno v: Earth and Planetary Physics, Vol 5, Iss 6, Pp 532-546 (2021)
With the development of unconventional shale gas in the southern Sichuan Basin, seismicity in the region has increased significantly in recent years. Though the existing sparse regional seismic stations can capture most earthquakes with \begin{docume
Externí odkaz: https://doaj.org/article/c16026d586674ce7988d935f0d4eecc9
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4
Akademický článek
Waveform Energy Focusing Tomography With Passive Seismic Sources
Autor: Yueqiao Hu, Junlun Li, Haijiang Zhang
Publikováno v: Frontiers in Earth Science, Vol 10 (2022)
By taking advantage of the information carried by the entire seismic wavefield, Full Waveform Inversion (FWI) is able to yield higher resolution subsurface velocity models than seismic traveltime tomography. However, FWI heavily relies on the knowled
Externí odkaz: https://doaj.org/article/b515cc12a28546249061e32d0e4d1544
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5
Akademický článek
A real-time AI-assisted seismic monitoring system based on new nodal stations with 4G telemetry and its application in the Yangbi MS 6.4 aftershock monitoring in southwest China
Autor: Junlun Li, Huajian Yao, Baoshan Wang, Yang Yang, Xin Hu, Lishu Zhang, Beng Ye, Jun Yang, Xiaobin Li, Feng Liu, Guoyi Chen, Chang Guo, Wen Yang
Publikováno v: Earthquake Research Advances, Vol 2, Iss 2, Pp 100033- (2022)
A rapidly deployable dense seismic monitoring system which is capable of transmitting acquired data in real time and analyzing data automatically is crucial in seismic hazard mitigation after a major earthquake. However, it is rather difficult for cu
Externí odkaz: https://doaj.org/article/845ba7f804f845889e2b15dff2dd6958
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7
Elastic Transmitted Wave Reverse Time Migration for Imaging Earth’s Interior Discontinuities: A Numerical Study
Autor: Haipeng Li, Junlun Li
Publikováno v: Bulletin of the Seismological Society of America. 112:2231-2256
Seismic imaging is crucial in investigating Earth’s interior structures and understanding its tectonics and evolution. The reflected, converted, and scattered waves have attracted considerable attention in the previous studies, whereas the directly
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be5c73a5fbb067a395724f59cebc43a2
https://doi.org/10.1785/0120210325
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8
The extended range phase shift method for broadband surface wave dispersion measurement from ambient noise and its application in ore deposit characterization
Autor: Bao Deng, Junlun Li, Jiangshan Liu, Changming Shen, Junliu Suwen, Qi-Fu Chen
Publikováno v: GEOPHYSICS. 87:JM29-JM40
Surface wave tomography using seismic ambient noise has been applied widely in subsurface characterization, the depth of which ranges from a few meters in urban underground engineering to tens of kilometers in delineation of crustal heterogeneities.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32506e818bc10fa2d3628b80f9136e3a
https://doi.org/10.1190/geo2021-0320.1
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9
Automatically Extracting Surface-Wave Group and Phase Velocity Dispersion Curves from Dispersion Spectrograms Using a Convolutional Neural Network
Autor: Shaobo Yang, Haijiang Zhang, Ning Gu, Ji Gao, Jian Xu, Jiaqi Jin, Junlun Li, Huajian Yao
Publikováno v: Seismological Research Letters. 93:1549-1563
To image high-resolution crustal and upper-mantle structures, ambient noise tomography (ANT) has been widely used on local and regional dense seismic arrays. One of the key steps in ANT is to extract surface-wave group and phase velocity dispersion c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd12073b6a23fb54799c3dddd163763d
https://doi.org/10.1785/0220210280
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