A Local Seismic Project near the Dalk Glacier Area, Larsemann Hills, East Antarctica: Toward Subice Imaging and Icequake Monitoring

Fu, Lei1; Guo, Jingxue2; Li, Lin; Lu, Kai2; Chen, Xiaofei3

2023-07-01

10.1785/0220220372

SEISMOLOGICAL RESEARCH LETTERS   影响因子和分区

0895-0695

1938-2057

During the 2019-2020 field season of the 36th Chinese National Antarctic Research Expedition, two seismic arrays were deployed in the Dalk Glacier area of Larsemann Hills, East Antarctica. The arrays consisted of 100 short-period nodal stations and were intended to investigate the physical properties and seismic events in the region, with the goal of enhancing our understanding of the glacier's structure and dynamics. With these data, we use horizontal-to-vertical spectral ratio (HVSR) analysis to estimate the ice thickness. Noise cross-correlation functions and multimode dispersion curves of Rayleigh waves were extracted from the vertical-component ambient noise data to illu- minate near-surface glacial structures. Teleseismic events with Mw > 5.5 and two typical kinds of icequakes were observed via visual inspection. These initial results improve the understanding of the physical properties of the ice sheet as well as the glacial seismicity in Dalk Glacier.

SCI

英语

其他

"CUG Scholar" Scientific Research Funds at the China University of Geosciences (Wuhan)[2022132] ; National Natural Science Foundation of China["41974044","41941004"]

Geochemistry & Geophysics

Geochemistry & Geophysics

WOS:001026417000005

SEISMOLOGICAL SOC AMER

GEOSCIENCES

Web of Science

1.China Univ Geosci, Sch Geophys & Geomat, Hubei Subsurface Multiscale Imaging Key Lab, Wuhan, Peoples R China
2.Polar Res Inst China, Key Lab Polar Sci, MNR, Shanghai, Peoples R China
3.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China

Fu, Lei,Guo, Jingxue,Li, Lin,et al. A Local Seismic Project near the Dalk Glacier Area, Larsemann Hills, East Antarctica: Toward Subice Imaging and Icequake Monitoring[J]. SEISMOLOGICAL RESEARCH LETTERS,2023,94(4).

Fu, Lei,Guo, Jingxue,Li, Lin,Lu, Kai,&Chen, Xiaofei.(2023).A Local Seismic Project near the Dalk Glacier Area, Larsemann Hills, East Antarctica: Toward Subice Imaging and Icequake Monitoring.SEISMOLOGICAL RESEARCH LETTERS,94(4).

Fu, Lei,et al."A Local Seismic Project near the Dalk Glacier Area, Larsemann Hills, East Antarctica: Toward Subice Imaging and Icequake Monitoring".SEISMOLOGICAL RESEARCH LETTERS 94.4(2023).