1. Mass balance of the Antarctic Ice Sheet from 1992 to 2017
- Author
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Ted Scambos, Richard I. Cullather, Helmut Rott, David N. Wiese, Valentina R. Barletta, Isabella Velicogna, Brice Noël, Jeremie Mouginot, Edward Hanna, Melchior van Wessem, W. Richard Peltier, Thomas Nagler, Alejandro Blazquez, Eric Rignot, Jennifer Bonin, Nadege Pie, Veit Helm, Bernd Scheuchl, Louise Sandberg-Sørensen, Brian Gunter, Ines Otosaka, Ben Smith, Denis Felikson, Benoit S. Lecavalier, Bryant D. Loomis, Cécile Agosta, Peter L. Langen, Wouter van der Wal, Christopher Harig, René Forsberg, Philip Moore, Giorgio Spada, Ernst Schrama, Alex S. Gardner, T. C. Sutterley, Matthieu Talpe, Daniele Melini, Xavier Fettweis, Andreas Groh, Gerhard Krinner, Bert Wouters, Sebastian H. Mernild, Kate Briggs, Andreas P. Ahlstrøm, Erik R. Ivins, Shfaqat Abbas Khan, Johan Nilsson, Hannes Konrad, Nicole Schlegel, Sebastian B. Simonsen, Kristian K. Kjeldsen, Greg Babonis, Malcolm McMillan, Pippa L. Whitehouse, Ingo Sasgen, Lev Tarasov, Ki-Weon Seo, Lin Gilbert, Geruo A, Yara Mohajerani, Scott B. Luthcke, Gorka Moyano, Andrew Shepherd, Thomas Slater, Michiel R. van den Broeke, Bramha Dutt Vishwakarma, Roelof Rietbroek, Alexander Horvath, Hubert Gallée, Tony Payne, Willem Jan van de Berg, Martin Horwath, Alan Muir, Ian Joughin, Beata Csatho, Himanshu Save, Mark E. Pattle, Sophie Nowicki, Ludwig Schröder, Grace A. Nield, Institut des Géosciences de l’Environnement (IGE), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Recherche pour le Développement (IRD)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Andrew Shepherd, Erik Ivin, Eric Rignot, Ben Smith, Michiel VDBroeke, Isabella Velicogna, Pippa Whitehouse, Kate Brigg, Ian Joughin, Gerhard Krinner, Sophie Nowicki, Tony Payne, Ted Scambo, Nicole Schlegel, Geruo A, Cécile Agosta, Andreas Ahlstrøm, Greg Baboni, Valentina Barletta, Alejandro Blazquez, Jennifer Bonin, Beata Csatho, Richard Cullather, Denis Felikson, Xavier Fettwei, Rene Forsberg, Hubert Gallee, Alex Gardner, Lin Gilbert, Andreas Groh, Brian Gunter, Edward Hanna, Christopher Harig, Veit Helm, Alexander Horvath, Martin Horwath, Shfaqat Khan, Kristian Kjeldsen, Hannes Konrad, Peter Langen, Benoit Lecavalier, Bryant Loomi, Scott Luthcke, Malcolm McMillan, Daniele Melini, Sebastian Mernild, Yara Mohajerani, Philip Moore, Jeremie Mouginot, Gorka Moyano, Alan Muir, Thomas Nagler, Grace Nield, Johan Nilsson, Brice Noel, Ines Otosaka, Mark Pattle, William Peltier, Nadege Pie, Roelof Rietbroek, Helmut Rott, LouiseSandberg Sørensen, Ingo Sasgen, Himanshu Save, Bernd Scheuchl, Ernst Schrama, Ludwig Schröder, KiWeon Seo, Sebastian Simonsen, Tom Slater, Giorgio Spada, Tyler Sutterley, Matthieu Talpe, Lev Tarasov, Willem JVdeBerg, Wouter vanderWal, Melchior van Wessem, BramhaDutt Vishwakarma, David Wiese, Bert Wouters, Centre National de la Recherche Scientifique (CNRS), University of California [Irvine] (UCI), University of California, Laboratoire de glaciologie et géophysique de l'environnement (LGGE), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS), and Institut de Recherche pour le Développement (IRD)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)
- Subjects
010504 meteorology & atmospheric sciences ,[SDE.MCG]Environmental Sciences/Global Changes ,Climate change ,Antarctic ice sheet ,NN ,010502 geochemistry & geophysics ,01 natural sciences ,Glacier mass balance ,Peninsula ,Taverne ,SDG 13 - Climate Action ,F890 Geographical and Environmental Sciences not elsewhere classified ,Sea level ,ComputingMilieux_MISCELLANEOUS ,0105 earth and related environmental sciences ,geography ,Multidisciplinary ,geography.geographical_feature_category ,Post-glacial rebound ,Balance (accounting) ,13. Climate action ,[SDE]Environmental Sciences ,Environmental science ,Physical geography ,Tonne - Abstract
The Antarctic Ice Sheet is an important indicator of climate change and driver of sea-level rise. Here we combine satellite observations of its changing volume, flow and gravitational attraction with modelling of its surface mass balance to show that it lost 2,720 ± 1,390 billion tonnes of ice between 1992 and 2017, which corresponds to an increase in mean sea level of 7.6 ± 3.9 millimetres (errors are one standard deviation). Over this period, ocean-driven melting has caused rates of ice loss from West Antarctica to increase from 53 ± 29 billion to 159 ± 26 billion tonnes per year; ice-shelf collapse has increased the rate of ice loss from the Antarctic Peninsula from 7 ± 13 billion to 33 ± 16 billion tonnes per year. We find large variations in and among model estimates of surface mass balance and glacial isostatic adjustment for East Antarctica, with its average rate of mass gain over the period 1992–2017 (5 ± 46 billion tonnes per year) being the least certain.
- Published
- 2018
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