Mapping release and propagation areas of permafrost-related rock slope failures to identify hot spots for hazard assessment, French Alps ...
<!--!introduction!--> Permafrost-affected rockwalls are increasingly impacted by the effects of climate change and rising air temperature leading to rock slope failures. These events could be a threat for human lives and infrastructure, which underlines the need of better knowledge about their...
| Main Authors: | , , , , , , , |
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| Format: | Conference Object |
| Language: | unknown |
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GFZ German Research Centre for Geosciences
2023
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.57757/iugg23-1859 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017750 |
| Summary: | <!--!introduction!--> Permafrost-affected rockwalls are increasingly impacted by the effects of climate change and rising air temperature leading to rock slope failures. These events could be a threat for human lives and infrastructure, which underlines the need of better knowledge about their triggering mechanism and propagation. The aim of this study was to propose a regional mapping approach of susceptible release areas of rock slope failures and resulting runout distances. This information is a first step to identify hotspots for subsequent hazard assessment. To do so, we used an inventory of 1389 rock slope failures (volume > 10 2 m 3 ) recorded in the Mont-Blanc massif on 2007-2019 period and determined the topographical and permafrost conditions that are most prone to their triggering using a digital terrain model and a permafrost map. These conditions are used in a multi-criteria GIS approach to identify potential unstable slopes at the French Alps scale. Then, the potential release area map ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
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