Multi-method monitoring of Glacier d’Argentière dynamics

• Published in: Annals of Glaciology
• Main Authors: Benoit, Lionel, Dehecq, Amaury, Pham, Ha-Thai, Vernier, Flavien, Trouvé, Emmanuel, Moreau, Luc, Martin, Olivier, Thom, Christian, Pierrot-Deseilligny, Marc, Briole, Pierre
• Other Authors: Laboratoire d'Opto-électronique et de Micro-Informatique (LOEMI), Laboratoire des Sciences et Technologies de l'Information Géographique (LaSTIG), École nationale des sciences géographiques (ENSG), Institut National de l'Information Géographique et Forestière IGN (IGN)-Institut National de l'Information Géographique et Forestière IGN (IGN)-École nationale des sciences géographiques (ENSG), Institut National de l'Information Géographique et Forestière IGN (IGN)-Institut National de l'Information Géographique et Forestière IGN (IGN), Laboratoire d'Informatique, Systèmes, Traitement de l'Information et de la Connaissance (LISTIC), Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ), Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ), Laboratoire de géologie de l'ENS (LGENS), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2015
• Subjects: remote sensing; glaciological instruments and methods; applied glaciology; glacier flow; glacier mapping; geo; envir; Annals of Glaciology
• Online Access: https://doi.org/10.3189/2015AoG70A985; https://hal.archives-ouvertes.fr/hal-01154174/file/div-class-title-multi-method-monitoring-of-glacier-d-argentiere-dynamics-div.pdf; https://hal.archives-ouvertes.fr/hal-01154174

International audience The flow of Glacier d’Argentière, French Alps, has been extensively studied by glaciologistsfor >100 years, but high-temporal- and high-spatial-resolution monitoring of its dynamics has rarelybeen carried out. In this paper, the terminal part of the main glacier was selected to undertake such asurvey. The 2 month experiment (September–November 2013) included remote sensing to map thevelocity field of the whole area, and a network of in situ measurements to record the ice velocity at thesurface as well as at the base of the glacier with high precision and at high temporal resolution. Thesemonitoring methods are combined to produce a comprehensive and reliable picture of the ice flow.Basal and surface in situ measurements are used to precisely monitor the temporal variability of the iceflow at a section of the glacier where crevassed areas and non-cracked ice coexist. The achieved resultsare an innovative and efficient tool to investigate the acceleration/deceleration pattern heterogeneitiesin ice flow that occur after heavy rainfall