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100 years of monitoring in the Swiss National Park reveals overall decreasing rock glacier velocities

Earth Sciences

100 years of monitoring in the Swiss National Park reveals overall decreasing rock glacier velocities

A. M. Manchado, S. Allen, et al.

Rock glaciers in the Swiss National Park have shown a troubling trend of deceleration and volume loss over the last century. This significant research, conducted by Alberto Muñoz-Torrero Manchado and colleagues, reveals the intricate interplay between glacier hydrology and permafrost degradation, suggesting that ongoing changes may stabilize surface movement in the future.

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Playback language: English
Abstract
Rock glaciers (RG) in the Swiss National Park, the first globally where in-situ measurements of surface displacement were made (1918), show a general deceleration and volume loss trend over the past century. Photogrammetric analysis reveals kinematic changes influenced by adjacent glacier hydrology. Ongoing glacier degradation will likely lead to limited future accelerations; instead, gradual secondary creep sustained by water flow from adjacent glaciers will progressively slow as permafrost degradation continues.
Publisher
communications earth & environment
Published On
Mar 16, 2024
Authors
Alberto Muñoz-Torrero Manchado, Simon Allen, Alessandro Cicoira, Samuel Wiesmann, Ruedi Haller, Markus Stoffel
Tags
rock glaciers
Swiss National Park
surface displacement
glacier hydrology
permafrost degradation
climate change
kinematic changes

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