Ice shelves and tidewater glaciers are sensitive elements of the climate system. Sandwiched between atmosphere and ocean, they are vulnerable to changes in either. The recent disintegration of ice shelves such as Larsen B and Wilkins on the Antarctic Peninsula, current thinning of the ice shelves in the Amundsen Sea sector of West Antarctica, and the recent accelerations of many of Greenland's tidewater glaciers provide evidence of the rapidity with which those systems can respond. Changes in marine-terminating outlets appear to be intimately linked with acceleration and thinning of the ice sheets inland of the grounding line, with immediate consequences for global sea level. Studies of the dynamics and structure of the ice sheets' marine termini and their interactions with atmosphere and ocean are the key to improving our understanding of their response to climate forcing and of their buttressing role for ice streams. The main themes of this session are the dynamics of ice shelves and tidewater glaciers and their interaction with the ocean, atmosphere and the inland ice, including grounding line dynamics. The session includes studies on related processes such as calving, ice fracture, rifting and mass balance, as well as theoretical descriptions of mechanical and thermodynamic processes. We seek contributions both from numerical modelling of ice shelves and tidewater glaciers, including their oceanic and atmospheric environments, and from observational studies of those systems, including glaciological and oceanographic field measurements, as well as remote sensing and laboratory studies.

Co-organized as OS1.20
Convener: Adrian Jenkins | Co-conveners: Angelika Humbert, Nicolas Jourdain, Andreas Vieli, Inga Monika Koszalka
| Wed, 10 Apr, 10:45–12:30, 14:00–18:00
Room N2
| Attendance Tue, 09 Apr, 14:00–15:45
Hall X4

Attendance time: Tuesday, 9 April 2019, 14:00–15:45 | Hall X4

X4.59 |
Monolithic simulation of ice-shelf/ocean interaction with an extended enthalpy-porosity method for convection-coupled phase-change
Alexander G. Zimmerman and Julia Kowalski
X4.60 |
Sophie Berger, Niklas Neckel, Veit Helm, Nils Dörr, Reinhard Drews, Frank Pattyn, and Olaf Eisen
X4.61 |
Katrin Lindbäck, Geir Moholdt, Tore Hattermann, Keith Nicholls, Bhanu Pratap, Thamban Meloth, and Kenichi Matsuoka
X4.63 |
Paul Holland, Thomas Bracegirdle, Pierre Dutrieux, Adrian Jenkins, and Eric Steig
X4.64 |
Jan De Rydt, Ronja Reese, Ricarda Winkelmann, and Hilmar Gudmundsson
X4.65 |
Konstantinos Petrakopoulos, David M. Holland, and G. Hilmar Gudmundsson
X4.66 |
Christine Indrigo, Christine Dow, Duncan Young, Choon-Ki Lee, Jamin Greenbaum, Don Blankenship, and Won Sang Lee
X4.67 |
Tom Mitcham, Hilmar Gudmundsson, and Jonathan Bamber
X4.68 |
Chris R. Stokes, Jack Sanderson, Bertie Miles, Stewart Jamieson, Amber Leeson, and Jennifer Arthur
X4.69 |
Dominik Fahrner, James M. Lea, Alec Davies, Jakob Abermann, and Martin Olsen
X4.70 |
Stephen Brough, J. Rachel Carr, Neil Ross, and James M. Lea
X4.71 |
Rachel Carr, Hilmar Gudmundsson, Stephen Brough, and Neil Ross
X4.73 |
Martin Lüthi, Andrea Walter, Andreas Vieli, and Rémy Mercenier
X4.75 |
Tom Cowton, Joe Todd, and Doug Benn
X4.76 |
Julia Christmann, Ole Zeising, Daniel Steinhage, Niklas Neckel, Tobias Binder, Veit Helm, Ralf Müller, Dietmar Gross, Mirko Scheinert, and Angelika Humbert
X4.77 |
Janin Schaffer, Torsten Kanzow, Wilken-Jon von Appen, Luisa von Albedyll, Gereon Budéus, Jan Erik Arndt, and Andreas Münchow