The stability of present-day Antarctic grounding lines – Part 2: Onset of irreversible retreat of Amundsen Sea glaciers under current climate on centennial timescales cannot be excluded

• Published in: The Cryosphere
• Main Authors: Reese, Ronja, Garbe, Julius, Hill, Emily, Urruty, Benoît, Naughten, Kaitlin, Gagliardini, Olivier, Durand, Gaël, Gillet-Chaulet, Fabien, Gudmundsson, G. Hilmar, Chandler, David, Langebroek, Petra, Winkelmann, Ricarda
• Other Authors: University of Northumbria at Newcastle United Kingdom, King‘s College London, Institut des Géosciences de l’Environnement (IGE), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Lawrence Berkeley National Laboratory Berkeley (LBNL), Bjerknes Centre for Climate Research (BCCR), Department of Biological Sciences Bergen (BIO / UiB), University of Bergen (UiB)-University of Bergen (UiB), Potsdam Institute for Climate Impact Research (PIK), University of Potsdam = Universität Potsdam
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2023
• Subjects: [SDE]Environmental Sciences; Amundsen Sea; Antarctic; Pine Island Glacier; Ronne Ice Shelf; Siple; Siple Coast; Thwaites Glacier; West Antarctic Ice Sheet; Antarc*; Antarctica; Filchner Ronne Ice Shelf; Filchner-Ronne Ice Shelf; Ice Sheet; Ice Shelf; Ice Shelves; Pine Island; The Cryosphere
• Online Access: https://hal.science/hal-04297038; https://hal.science/hal-04297038/document; https://hal.science/hal-04297038/file/tc-17-3761-2023.pdf; https://doi.org/10.5194/tc-17-3761-2023

International audience Abstract. Observations of ocean-driven grounding-line retreat in the Amundsen Sea Embayment in Antarctica raise the question of an imminent collapse of the West Antarctic Ice Sheet. Here we analyse the committed evolution of Antarctic grounding lines under the present-day clim...