Ice aprons on steep high-alpine slopes: insights from the Mont-Blanc massif, Western Alps

Autor: Ludovic Ravanel, Grégoire Guillet, Suvrat Kaushik, Susanne Preunkert, Emmanuel Malet, Florence Magnin, Emmanuel Trouvé, Maurine Montagnat, Yajing Yan, Philip Deline

Publikováno v: Journal of Glaciology, Vol 69, Pp 1275-1291 (2023)

Ice aprons are defined as very small ice bodies covering steep rock slopes. They have only been the subject of increased scientific interest for a few years, despite the fact that they are a condition for mountaineering and obvious elements in the hi

Externí odkaz: https://doaj.org/article/08353d379961451097f977d4cda17a1d

Variations in surface area of six ice aprons in the Mont-Blanc massif since the Little Ice Age

Autor: Grégoire Guillet, Ludovic Ravanel

Publikováno v: Journal of Glaciology, Vol 66, Pp 777-789 (2020)

Deglaciation of high mountain rockwalls alters slope stability as rockwalls become more sensitive to modifications in environmental factors (e.g. seasonal temperature variations). In the past decades, increasing efforts focused on studying deglaciate

Externí odkaz: https://doaj.org/article/d9dd23f554834f9abd5e914ae0773faa

Brief communication: Glacier mapping and change estimation using very high-resolution declassified Hexagon KH-9 panoramic stereo imagery (1971–1984)

Autor: Sajid Ghuffar, Owen King, Grégoire Guillet, Ewelina Rupnik, Tobias Bolch

Publikováno v: The Cryosphere. 17:1299-1306

The panoramic cameras (PCs) on board Hexagon KH-9 (KH-9PC) satellite missions from 1971–1984 captured very high-resolution stereo imagery with up to 60 cm spatial resolution. This study explores the potential of this imagery for glacier mapping and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::370b556d72e2cc4f8c36574a95af441c
https://doi.org/10.5194/tc-17-1299-2023

Investigation of a cold-based ice apron on a high-mountain permafrost rock wall using ice texture analysis and micro-14C dating: a case study of the Triangle du Tacul ice apron (Mont Blanc massif, France)

Autor: Ludovic Ravanel, Maurine Montagnat, Grégoire Guillet, Ronny Friedrich, Susanne Preunkert

Publikováno v: Journal of Glaciology
Journal of Glaciology, 2021, pp.1-8. ⟨10.1017/jog.2021.65⟩
Journal of Glaciology, International Glaciological Society, 2021, pp.1-8. ⟨10.1017/jog.2021.65⟩

This study is part of the ANR 14-CE03-0006 VIP Mont Blanc and the EU ALCOTRA AdaPT Mont Blanc project. The current paper studies the dynamics and age of the Triangle du Tacul (TDT) ice apron, a massive ice volume lying on a steep high-mountain rock w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c15c88cde0d10dc140a5435c043989c9
https://doi.org/10.1017/jog.2021.65

Understanding the impacts of climate change on high mountain practices: the case of the Mont Blanc massif through an interdisciplinary approach

Autor: Marie Olhasque, Ludovic Ravanel, Emmanuel Salim, Xavi Gallach, Philip Deline, Jacques Mourey, Florence Magnin, Grégoire Guillet, Maeva Cathala, Suvrat Kaushik, P.A Duvillard

Publikováno v: EGU General Assembly
EGU General Assembly, Apr 2021, Online, France. ⟨10.5194/egusphere-egu21-1729⟩

International audience; The intensity of the current climate change has strong consequences for high mountain tourism activities. Winter activities are currently the most studied (ski industry). However, the consequences of environmental changes are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1311635eaeb227945313b92d438269e4
https://hal.archives-ouvertes.fr/hal-03260722