DOI: 10.5194/tc-14-2537-2020
论文题名: Observation of an optical anisotropy in the deep glacial Ice at the geographic South Pole using a laser dust logger
作者: Rongen M. ; Carlton Bay R. ; Blot S.
刊名: Cryosphere
ISSN: 19940416
出版年: 2020
卷: 14, 期: 8 起始页码: 2537
结束页码: 2543
语种: 英语
英文关键词: anisotropy
; backscatter
; ice core
; instrumentation
; measurement method
; observational method
; simulation
英文摘要: We report on a depth-dependent observation of a directional anisotropy In the recorded Intensity of backscattered light as measured by an oriented laser dust logger. The measurement was performed In a drill hole at the geographic South Pole about a kilometer away from the IceCube Neutrino Observatory. The drill hole has remained open for access since the SPiCEcore collaboration retrieved a 1751m Ice core. We find the anisotropy axis of 1263 as measured below 1100m to be compatible with the local flow direction. The observation Is discussed In comparison to a similar anisotropy observed In data from the IceCube Neutrino Observatory and favors a birefringence-based scenario over previously suggested Mie-scattering-based explanations. In the future, the measurement principle, when combined with a full-chain simulation, may have the potential to provide a continuous record of fabric properties along the entire depth of a drill hole. © Author(s) 2020. This work Is distributed under the Creative Commons Attribution 4.0 License. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164570
Appears in Collections: 气候变化与战略
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作者单位: Institute for Particle Physics Iii B, Rwth Aachen University, Aachen, 52074, Germany; Department of Physics, University of California, Berkeley, CA, United States; Desy, Zeuthen, 15738, Germany
Recommended Citation:
Rongen M.,Carlton Bay R.,Blot S.. Observation of an optical anisotropy in the deep glacial Ice at the geographic South Pole using a laser dust logger[J]. Cryosphere,2020-01-01,14(8)