8 years of research on ice aprons in the Mont-Blanc massif (Franch Alps)

Abstract ID: 3.13488 | Accepted as Poster | Requested as: Talk | TBA | TBA

Ludovic Ravanel (1)
Xavier, CAILHOL (1); Suvrat, KAUSHIK (2); Christine, PIOT (1); Florence, MAGNIN (1); Grégoire, GUILLET (3)

(1) EDYTEM, bd de la mer Caspienne, 73376 Le Bourget du Lac, FR
(2) Centre d'Étude de la Neige, 1441 rue de la Piscine, Grenoble, France
(3) University of Oslo - Section of Physical geography and Hydrology, Sem Sælands vei 1, Oslo, Norway

Categories: Cryo- & Hydrosphere
Keywords: Ice aprons, Perennial ice bodies, glacial heritage, Paleo-environmental archive, Mountaineering

Categories: Cryo- & Hydrosphere
Keywords: Ice aprons, Perennial ice bodies, glacial heritage, Paleo-environmental archive, Mountaineering

Abstract

Ice aprons are small perennial ice bodies (generally <0.1 km²) located on steep slopes with a nearly stationary shear regime. They are typically found above the regional glacier equilibrium line altitude, within permafrost. While ice aprons occupy only a small fraction of the ice-covered surface, they contain ice that can be multi-centennial to multi-millennial in age, making them a potentially significant glacial heritage. This presentation summarizes eight years of research on these unique ice bodies in the Mont-Blanc massif (Western Alps), focusing particularly on their recent evolution, their impact on mountaineering, and their potential insights from a paleo-environmental perspective.

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