Articles | Volume 8, issue 3
Earth Surf. Dynam., 8, 729–751, 2020
https://doi.org/10.5194/esurf-8-729-2020
Earth Surf. Dynam., 8, 729–751, 2020
https://doi.org/10.5194/esurf-8-729-2020

Research article 11 Sep 2020

Research article | 11 Sep 2020

Current glacier recession causes significant rockfall increase: the immediate paraglacial response of deglaciating cirque walls

Ingo Hartmeyer et al.

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Latest update: 27 Sep 2021
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Short summary
Climate warming is causing significant ice surface lowering even in the uppermost parts of alpine glaciers. Using terrestrial lidar, we quantify rockfall in freshly exposed cirque walls. During 6-year monitoring (2011–2017), an extensive dataset was established and over 600 rockfall events identified. Drastically increased rockfall activity following ice retreat can clearly be observed as 60 % of the rockfall volume detached from less than 10 m above the glacier surface.