Observation of an optical anisotropy in the deep glacial ice at the geographic South Pole using a laser dust logger
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 Observator...
Published in: | The Cryosphere |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Copernicus
2020
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Online Access: | https://bib-pubdb1.desy.de/record/453895 https://bib-pubdb1.desy.de/search?p=id:%22PUBDB-2021-00255%22 |
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ftdesyvdb:oai:bib-pubdb1.desy.de:453895 2023-05-15T16:39:07+02:00 Observation of an optical anisotropy in the deep glacial ice at the geographic South Pole using a laser dust logger Rongen, Martin Bay, Ryan Carlton Blot, Summer DE 2020 https://bib-pubdb1.desy.de/record/453895 https://bib-pubdb1.desy.de/search?p=id:%22PUBDB-2021-00255%22 eng eng Copernicus info:eu-repo/semantics/altIdentifier/wos/WOS:000558717000001 info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-14-2537-2020 info:eu-repo/semantics/altIdentifier/issn/1994-0424 info:eu-repo/semantics/altIdentifier/issn/1994-0416 https://bib-pubdb1.desy.de/record/453895 https://bib-pubdb1.desy.de/search?p=id:%22PUBDB-2021-00255%22 info:eu-repo/semantics/closedAccess The Cryosphere 14(8), 2537 - 2543 (2020). doi:10.5194/tc-14-2537-2020 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftdesyvdb https://doi.org/10.5194/tc-14-2537-2020 2022-06-30T20:21:52Z 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 1751 m ice core. We find the anisotropy axis of 126±3° as measured below 1100 m 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. Article in Journal/Newspaper ice core South pole The Cryosphere DESY Publication Database (PUBDB) South Pole The Cryosphere 14 8 2537 2543 |
institution |
Open Polar |
collection |
DESY Publication Database (PUBDB) |
op_collection_id |
ftdesyvdb |
language |
English |
description |
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 1751 m ice core. We find the anisotropy axis of 126±3° as measured below 1100 m 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. |
format |
Article in Journal/Newspaper |
author |
Rongen, Martin Bay, Ryan Carlton Blot, Summer |
spellingShingle |
Rongen, Martin Bay, Ryan Carlton Blot, Summer Observation of an optical anisotropy in the deep glacial ice at the geographic South Pole using a laser dust logger |
author_facet |
Rongen, Martin Bay, Ryan Carlton Blot, Summer |
author_sort |
Rongen, Martin |
title |
Observation of an optical anisotropy in the deep glacial ice at the geographic South Pole using a laser dust logger |
title_short |
Observation of an optical anisotropy in the deep glacial ice at the geographic South Pole using a laser dust logger |
title_full |
Observation of an optical anisotropy in the deep glacial ice at the geographic South Pole using a laser dust logger |
title_fullStr |
Observation of an optical anisotropy in the deep glacial ice at the geographic South Pole using a laser dust logger |
title_full_unstemmed |
Observation of an optical anisotropy in the deep glacial ice at the geographic South Pole using a laser dust logger |
title_sort |
observation of an optical anisotropy in the deep glacial ice at the geographic south pole using a laser dust logger |
publisher |
Copernicus |
publishDate |
2020 |
url |
https://bib-pubdb1.desy.de/record/453895 https://bib-pubdb1.desy.de/search?p=id:%22PUBDB-2021-00255%22 |
op_coverage |
DE |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
ice core South pole The Cryosphere |
genre_facet |
ice core South pole The Cryosphere |
op_source |
The Cryosphere 14(8), 2537 - 2543 (2020). doi:10.5194/tc-14-2537-2020 |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000558717000001 info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-14-2537-2020 info:eu-repo/semantics/altIdentifier/issn/1994-0424 info:eu-repo/semantics/altIdentifier/issn/1994-0416 https://bib-pubdb1.desy.de/record/453895 https://bib-pubdb1.desy.de/search?p=id:%22PUBDB-2021-00255%22 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.5194/tc-14-2537-2020 |
container_title |
The Cryosphere |
container_volume |
14 |
container_issue |
8 |
container_start_page |
2537 |
op_container_end_page |
2543 |
_version_ |
1766029443832217600 |