Articles | Volume 23, issue 1
https://doi.org/10.5194/nhess-23-343-2023
https://doi.org/10.5194/nhess-23-343-2023
Research article
 | 
27 Jan 2023
Research article |  | 27 Jan 2023

Assessing the relationship between weather conditions and rockfall using terrestrial laser scanning to improve risk management

Tom Birien and Francis Gauthier

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Latest update: 17 Apr 2024
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Short summary
On highly fractured rockwalls such as those found in northern Gaspésie, most rockfalls are triggered by weather conditions. This study highlights that in winter, rockfall frequency is 12 times higher during a superficial thaw than during a cold period in which temperature remains below 0 °C. In summer, rockfall frequency is 22 times higher during a heavy rainfall event than during a mainly dry period. This knowledge could be used to implement a risk management strategy.
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