Articles | Volume 14, issue 8
The Cryosphere, 14, 2537–2543, 2020
https://doi.org/10.5194/tc-14-2537-2020
The Cryosphere, 14, 2537–2543, 2020
https://doi.org/10.5194/tc-14-2537-2020

Research article 03 Aug 2020

Research article | 03 Aug 2020

Observation of an optical anisotropy in the deep glacial ice at the geographic South Pole using a laser dust logger

Martin Rongen et al.

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Cited articles

Aartsen, M. G., Abbasi, R., Abdou, Y., et al.: South Pole glacial climate reconstruction from multi-borehole laser particulate stratigraphy, J. Glaciol., 59, 1117–1128, DOI:10.3189/2013JoG13J068, 2013. a, b, c
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Bramall, N. E., Bay, R. C., Woschnagg, K., Rohde, R. A., and Price, P. B.: A deep high-resolution optical log of dust, ash, and stratigraphy in South Pole glacial ice, Geophys. Res. Lett., 32, https://doi.org/10.1029/2005GL024236, 2005. a, b
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We report on the observation of a directional anisotropy in the intensity of backscattered light. The measurement was performed using a laser dust logger in the SPC14 drill hole at the geographic South Pole. We find the anisotropy axis to be compatible with the ice flow direction. It is discussed in comparison to a similar anisotropy observed by the IceCube Neutrino Observatory. In future, the measurement principle may provide a continuous record of crystal properties along entire drill holes.