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https://doi.org/10.5194/egusphere-2024-372
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egusphere-2024-372
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
18 Mar 2024
| 18 Mar 2024
Status: this preprint is open for discussion.
Brief communication: RADIX (Rapid Access Drilling and Ice eXtraction) dust logger test in the EastGRIP hole
Abstract. The RADIX (Rapid Access Drilling and Ice eXtraction) optical dust logger is part of the exploratory drilling system developed at the University of Bern. It was previously untested because no RADIX borehole reached to the depth of the required bubble-free ice. In June 2023, we tested the logger with an adapter for the large EastGRIP (East Greenland Ice-core Project) deep borehole. An excellent dust record was obtained for the Bølling-Allerød-Younger Dryas-Early Holocene period. The light scattered by the dust in the ice around the borehole was slightly higher than the detection range of the logger, requiring a reduction in the sensitivity for future deployments.
How to cite. Schwander, J., Stocker, T. F., Walther, R., Marending, S., Erhardt, T., Zeppenfeld, C., and Jost, J.: Brief communication: RADIX (Rapid Access Drilling and Ice eXtraction) dust logger test in the EastGRIP hole, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-372, 2024.
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Jakob Schwander
Climate and Environmental Physics, Physics Institute, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
Oeschger Centre for Climate Change Research, University of Bern, Hochschulstrasse 4, 3012 Bern, Switzerland
Thomas Franziskus Stocker
CORRESPONDING AUTHOR
Climate and Environmental Physics, Physics Institute, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
Oeschger Centre for Climate Change Research, University of Bern, Hochschulstrasse 4, 3012 Bern, Switzerland
Remo Walther
Climate and Environmental Physics, Physics Institute, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
Oeschger Centre for Climate Change Research, University of Bern, Hochschulstrasse 4, 3012 Bern, Switzerland
Samuel Marending
Climate and Environmental Physics, Physics Institute, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
Oeschger Centre for Climate Change Research, University of Bern, Hochschulstrasse 4, 3012 Bern, Switzerland
Tobias Erhardt
Climate and Environmental Physics, Physics Institute, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
Oeschger Centre for Climate Change Research, University of Bern, Hochschulstrasse 4, 3012 Bern, Switzerland
now at: Institute of Geosciences and Frankfurt Isotope and Element Research Center (FIERCE), Goethe University Frankfurt, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
Chantal Zeppenfeld
Climate and Environmental Physics, Physics Institute, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland
Oeschger Centre for Climate Change Research, University of Bern, Hochschulstrasse 4, 3012 Bern, Switzerland
Jürg Jost
Spacetek Technology AG, Brüggliweg 18, 3073 Gümligen, Switzerland
Short summary
The RADIX optical dust logger is part of the exploratory 20-mm drilling system of the University of Bern. The logger is inserted into the borehole after drilling. The temperature, inclination and compass sensors were successfully tested, but not the dust sensor, because no RADIX hole reached down to the required bubble-free ice. In June 2023, we tested the logger with an adapter for the large East GRIP deep borehole. An excellent dust record was obtained for the Late Glacial/Holocene.
The RADIX optical dust logger is part of the exploratory 20-mm drilling system of the University...