This study reconstructs the longest continuous time series (1626–2020) of debris flows at Multetta, a supply-limited torrential system in the Eastern Swiss Alps, using tree-ring records. The analysis reveals no significant changes in debris-flow frequency or magnitude over time, suggesting a lack of direct climatic influence on debris-flow initiation. This contrasts with findings from transport-limited catchments and highlights the importance of sediment supply in controlling debris-flow activity in supply-limited systems.
Publisher
Nature Communications
Published On
Oct 21, 2024
Authors
Jiazhi Qie, Adrien Favillier, Frédéric Liébault, Juan Antonio Ballesteros Cánovas, Jérôme Lopez-Saez, Sébastien Guillet, Loïc Francon, Yihua Zhong, Markus Stoffel, Christophe Corona
Tags
debris flows
sediment supply
Eastern Swiss Alps
tree-ring records
climate influence
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