Articles | Volume 12, issue 1
https://doi.org/10.5194/esurf-12-249-2024
https://doi.org/10.5194/esurf-12-249-2024
Research article
 | 
30 Jan 2024
Research article |  | 30 Jan 2024

Massive sediment pulses triggered by a multi-stage 130 000 m3 alpine cliff fall (Hochvogel, DE–AT)

Natalie Barbosa, Johannes Leinauer, Juilson Jubanski, Michael Dietze, Ulrich Münzer, Florian Siegert, and Michael Krautblatter

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This preprint is open for discussion and under review for Earth Surface Dynamics (ESurf).
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Cited articles

Abellán, A., Jaboyedoff, M., Oppikofer, T., and Vilaplana, J. M.: Detection of millimetric deformation using a terrestrial laser scanner: experiment and application to a rockfall event, Nat. Hazards Earth Syst. Sci., 9, 365–372, https://doi.org/10.5194/nhess-9-365-2009, 2009. 
Anderson, S. W.: Uncertainty in quantitative analyses of topographic change: error propagation and the role of thresholding, Earth Surf. Processes, 44, 1015–1033, https://doi.org/10.1002/esp.4551, 2019. 
Baer, P., Huggel, C., McArdell, B. W., and Frank, F.: Changing debris flow activity after sudden sediment input: a case study from the Swiss Alps, Geology Today, 33, 216–223, https://doi.org/10.1111/gto.12211, 2017. 
Battista, G., Schlunegger, F., Burlando, P., and Molnar, P.: Sediment Supply Effects in Hydrology-Sediment Modeling of an Alpine Basin, Water Resour. Res., 58, e2020WR029408, https://doi.org/10.1029/2020wr029408, 2022. 
Bayerisches Landesamt für Umwelt: Gewässerkundlicher Dienst Bayern – Niederschlag Hinterhornbach/Österreich, Bayerisches Landesamt für Umwelt [data set], https://www.gkd.bayern.de/de/meteo/niederschlag/iller_lech/hinterhornbach-oesterreich-6290/download, last access: 16 November 2022. 
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Short summary
Massive sediment pulses in catchments are a key alpine multi-risk component. Combining high-resolution aerial imagery and seismic information, we decipher a multi-stage >130.000 m³ rockfall and subsequent sediment pulses over 4 years, reflecting sediment deposition up to 10 m, redistribution in the basin, and finally debouchure to the outlet. This study provides generic information on spatial and temporal patterns of massive sediment pulses in highly charged alpine catchments.
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