Articles | Volume 14, issue 11
https://doi.org/10.5194/tc-14-4233-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-14-4233-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Mapping the age of ice of Gauligletscher combining surface radionuclide contamination and ice flow modeling
Guillaume Jouvet
CORRESPONDING AUTHOR
Autonomous Systems Laboratory, ETH Zurich, Zurich, Switzerland
Department of Geography, University of Zurich, Zurich, Switzerland
formerly at: Laboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, Switzerland
Stefan Röllin
Spiez Laboratory, Federal Office for Civil Protection, Spiez, Switzerland
Hans Sahli
Spiez Laboratory, Federal Office for Civil Protection, Spiez, Switzerland
José Corcho
Spiez Laboratory, Federal Office for Civil Protection, Spiez, Switzerland
Lars Gnägi
Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland
NBC Defence Laboratory 1, Swiss Armed Forces, Switzerland
Loris Compagno
Laboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, Switzerland
Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland
Dominik Sidler
NBC Defence Laboratory 1, Swiss Armed Forces, Switzerland
Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany
Margit Schwikowski
Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland
Paul Scherrer Institute, Villigen, Switzerland
Andreas Bauder
Laboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, Switzerland
Martin Funk
Laboratory of Hydraulics, Hydrology and Glaciology, ETH Zurich, Zurich, Switzerland
Data sets
Mapping the age of ice of Gauligletscher combining surface radionuclide contamination and ice flow modeling: Radionuclide data S. Röllin, H. Sahli, J. Corcho, L. Gnägi, and G. Jouvet https://doi.org/10.5281/zenodo.4280460
Short summary
We show that plutonium is an effective tracer to identify ice originating from the early 1960s at the surface of a mountain glacier after a long time within the ice flow, giving unique information on the long-term former ice motion. Combined with ice flow modelling, the dating can be extended to the entire glacier, and we show that an airplane which crash-landed on the Gauligletscher in 1946 will likely soon be released from the ice close to the place where pieces have emerged in recent years.
We show that plutonium is an effective tracer to identify ice originating from the early 1960s...