Hotwater in a frozen frame - Alphubel south face, Switzerland
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Hotwater in a frozen frame - Alphubel south face, Switzerland

by Janosch Beer, ETH Zurich - Laboratory of Hydraulics, Hydrology and Glaciology, Zurich, Switzerland

This drone shot was taken in August 2025 during our hot water drilling campaign on a small glacier in the south face of Alphubel (ca. 3800 m a.sl.). The survey took us two days, including a preparatory day where we build a platform on the almost 30-40 degree steep slope to secure the roughly half a ton of drilling equipment. The scenery from the glacier is absolutely majestic, overlooking the Mattertal, towards the Matterhorn, Monte Rosa and many more Swiss 4K peaks.