Optical Fibers Listen to the Death Sounds of Glaciers

John-Morgan Manos1, Bradley Paul Lipovsky1, Andreas Fichtner2, Dominik Gräff3, Eileen Rose Martin4, Patrick Paitz2 and Fabian Walter5, (1)University of Washington, Department of Earth and Space Sciences, Seattle, United States, (2)ETH Zurich, Department of Earth Sciences, Institute of Geophysics, Zurich, Switzerland, (3)ETH Zurich, Laboratory of Hydraulics, Hydrology and Glaciology (VAW), Zurich, Switzerland, (4)Stanford University, Stanford, CA, United States, (5)WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland