气候变化领域集成服务门户(CCPortal): Observation of an optical anisotropy in the deep glacial Ice at the geographic South Pole using a laser dust logger

CCPortal

DOI	10.5194/tc-14-2537-2020
	Observation of an optical anisotropy in the deep glacial Ice at the geographic South Pole using a laser dust logger
	Rongen M.; Carlton Bay R.; Blot S.
发表日期	2020
ISSN	19940416
起始页码	2537
结束页码	2543
卷号	14 期号:8
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.
英文关键词	anisotropy; backscatter; ice core; instrumentation; measurement method; observational method; simulation
语种	英语
来源期刊	Cryosphere
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202192
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
推荐引用方式 GB/T 7714	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],2020,14(8).
APA	Rongen M.,Carlton Bay R.,&Blot S..(2020).Observation of an optical anisotropy in the deep glacial Ice at the geographic South Pole using a laser dust logger.Cryosphere,14(8).
MLA	Rongen M.,et al."Observation of an optical anisotropy in the deep glacial Ice at the geographic South Pole using a laser dust logger".Cryosphere 14.8(2020).