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Akademický článek

Sensitivity of the future evolution of the Wilkes Subglacial Basin ice sheet to grounding-line melt parameterizations

Autor: Y. Wang, C. Zhao, R. Gladstone, T. Zwinger, B. K. Galton-Fenzi, P. Christoffersen

Publikováno v: The Cryosphere, Vol 18, Pp 5117-5137 (2024)

Projections of Antarctic Ice Sheet mass loss and therefore global sea level rise are hugely uncertain, partly due to how mass loss of the ice sheet occurs at the grounding line. The Wilkes Subglacial Basin (WSB), a vast region of the East Antarctic I

Externí odkaz: https://doaj.org/article/10907ee862d246c9b63e9c2da21bcf18

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Akademický článek

Increasing numerical stability of mountain valley glacier simulations: implementation and testing of free-surface stabilization in Elmer/Ice

Autor: A. Löfgren, T. Zwinger, P. Råback, C. Helanow, J. Ahlkrona

Publikováno v: The Cryosphere, Vol 18, Pp 3453-3470 (2024)

This paper concerns a numerical stabilization method for free-surface ice flow called the free-surface stabilization algorithm (FSSA). In the current study, the FSSA is implemented into the numerical ice-flow software Elmer/Ice and tested on syntheti

Externí odkaz: https://doaj.org/article/52bce8205601424f879875a7627e9624

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Akademický článek

A new 3D full-Stokes calving algorithm within Elmer/Ice (v9.0)

Autor: I. Wheel, D. I. Benn, A. J. Crawford, J. Todd, T. Zwinger

Publikováno v: Geoscientific Model Development, Vol 17, Pp 5759-5777 (2024)

A new calving algorithm is developed in the glacier model Elmer/Ice that allows unrestricted calving and terminus advance in 3D. The algorithm uses the meshing software Mmg to implement anisotropic remeshing and allow mesh adaptation at each time ste

Externí odkaz: https://doaj.org/article/30a9ebcbd2b2417bb36633570d10e5d9

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Akademický článek

Evolution of the Antarctic Ice Sheet Over the Next Three Centuries From an ISMIP6 Model Ensemble

Autor: Hélène Seroussi, Tyler Pelle, William H. Lipscomb, Ayako Abe‐Ouchi, Torsten Albrecht, Jorge Alvarez‐Solas, Xylar Asay‐Davis, Jean‐Baptiste Barre, Constantijn J. Berends, Jorge Bernales, Javier Blasco, Justine Caillet, David M. Chandler, Violaine Coulon, Richard Cullather, Christophe Dumas, Benjamin K. Galton‐Fenzi, Julius Garbe, Fabien Gillet‐Chaulet, Rupert Gladstone, Heiko Goelzer, Nicholas Golledge, Ralf Greve, G. Hilmar Gudmundsson, Holly Kyeore Han, Trevor R. Hillebrand, Matthew J. Hoffman, Philippe Huybrechts, Nicolas C. Jourdain, Ann Kristin Klose, Petra M. Langebroek, Gunter R. Leguy, Daniel P. Lowry, Pierre Mathiot, Marisa Montoya, Mathieu Morlighem, Sophie Nowicki, Frank Pattyn, Antony J. Payne, Aurélien Quiquet, Ronja Reese, Alexander Robinson, Leopekka Saraste, Erika G. Simon, Sainan Sun, Jake P. Twarog, Luke D. Trusel, Benoit Urruty, Jonas VanBreedam, Roderik S. W. van deWal, Yu Wang, Chen Zhao, Thomas Zwinger

Publikováno v: Earth's Future, Vol 12, Iss 9, Pp n/a-n/a (2024)

Abstract The Ice Sheet Model Intercomparison Project for CMIP6 (ISMIP6) is the primary effort of CMIP6 (Coupled Model Intercomparison Project–Phase 6) focusing on ice sheets, designed to provide an ensemble of process‐based projections of the ice

Externí odkaz: https://doaj.org/article/f85068d514034cbdac91ead931b6e5bb

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Akademický článek

Increasing numerical stability of mountain valley glacier simulations: implementation and testing of free-surface stabilization in Elmer/Ice.

Autor: Löfgren, André¹ (AUTHOR) andre.lofgren@math.su.se, Zwinger, Thomas² (AUTHOR), Råback, Peter² (AUTHOR), Helanow, Christian^1,3 (AUTHOR), Ahlkrona, Josefin^1,3 (AUTHOR)

Publikováno v: Cryosphere. 2024, Vol. 18 Issue 8, p3453-3470. 18p.

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Akademický článek

Insights into the vulnerability of Antarctic glaciers from the ISMIP6 ice sheet model ensemble and associated uncertainty

Publikováno v: The Cryosphere, Vol 17, Pp 5197-5217 (2023)

The Antarctic Ice Sheet represents the largest source of uncertainty in future sea level rise projections, with a contribution to sea level by 2100 ranging from −5 to 43 cm of sea level equivalent under high carbon emission scenarios estimated by t

Externí odkaz: https://doaj.org/article/602d0106f5dc44e2a4a46926008676ae

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Akademický článek

Controls on calving at a large Greenland tidewater glacier: stress regime, self-organised criticality and the crevasse-depth calving law

Autor: Douglas I. Benn, Joe Todd, Adrian Luckman, Suzanne Bevan, Thomas R. Chudley, Jan Åström, Thomas Zwinger, Samuel Cook, Poul Christoffersen

Publikováno v: Journal of Glaciology, Vol 69, Pp 2059-2074 (2023)

We investigate the physical basis of the crevasse-depth (CD) calving law by analysing relationships between glaciological stresses and calving behaviour at Sermeq Kujalleq (Store Glacier), Greenland. Our observations and model simulations show that t

Externí odkaz: https://doaj.org/article/a95a84fb4a354f699c423fb7735d87d9

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Akademický článek

Subglacial hydrology from high-resolution ice-flow simulations of the Rhine Glacier during the Last Glacial Maximum: a proxy for glacial erosion

Autor: D. Cohen, G. Jouvet, T. Zwinger, A. Landgraf, U. H. Fischer

Publikováno v: Eiszeitalter und Gegenwart, Vol 72, Pp 189-201 (2023)

At the Last Glacial Maximum (LGM), the Rhine Glacier complex (Rhine and Linth glaciers) formed large piedmont lobes extending north into the Swiss and German Alpine forelands. Numerous overdeepened valleys there were formed by repeated glaciations. A

Externí odkaz: https://doaj.org/article/0fb7d8aaa4ea4f8cbac1fe7424f8910a

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Akademický článek

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