And compared rockfall events to rockfall events from 2016 to 2019 quantified using laserscanning in a previous study.
www.nature.com/articles/s43...
We found that rockfall is mainly driven by frost weathering processes and permafrost rather than glacier retreat.

We measured rockfall for 2019-2023 using structure for motion photogrammetry…

We quantified glacier retreat and the Rothorn cirque Glacier showed an increasing glacier area loss with 0.2 %/year for 1850 to 1973, 2 %/year for 1973 to 2011 and up to 3.7 %/year for the period 2011 to 2023.

The Rothorn Glacier is a Alpine cirque glacier that lost 86 % of its size since 1850. As very small glacier are more sensitive to climate warming, its retreat rate of -3.7%/a is much larger than large European Glaciers.

Prepint: ssrn.com/abstract=513...
#IYGP #VanishingGlaciers #WorldGlaciersDay

In our new paper, we quantified damage by frost weathering in alpine rocks using microCT. With Veerle Cnudde's team at UGhent, we tested the efficacy of different freeze-thaw cycles. Thanks EXCITE Network for funding.

tc.copernicus.org/articles/18/28

Our new paper shows that Holocene warming increases erosion in Alpine rockwalls on the short-term but decreases mountain erosion on the long-term.
doi.org/10.1016/j.ep...
#landslides #glacier #permafrost #weathering #rockfall