Articles | Volume 15, issue 7
https://doi.org/10.5194/tc-15-3229-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-15-3229-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
14 Jul 2021
Research article |
| 14 Jul 2021
| 14 Jul 2021
Marine ice sheet experiments with the Community Ice Sheet Model
Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
William H. Lipscomb
Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
Xylar S. Asay-Davis
Los Alamos National Laboratory, Los Alamos, NM, USA
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26 citations as recorded by crossref.
- Exploring ice sheet model sensitivity to ocean thermal forcing and basal sliding using the Community Ice Sheet Model (CISM) M. Berdahl et al. https://doi.org/10.5194/tc-17-1513-2023
- Antarctic tipping points triggered by the mid-Pliocene warm climate J. Blasco et al. https://doi.org/10.5194/cp-20-1919-2024
- Calculations of extreme sea level rise scenarios are strongly dependent on ice sheet model resolution C. Williams et al. https://doi.org/10.1038/s43247-025-02010-z
- Modelling feedbacks between the Northern Hemisphere ice sheets and climate during the last glacial cycle M. Scherrenberg et al. https://doi.org/10.5194/cp-19-399-2023
- Compensating errors in inversions for subglacial bed roughness: same steady state, different dynamic response C. Berends et al. https://doi.org/10.5194/tc-17-1585-2023
- Improvements on the discretisation of boundary conditions to the momentum balance for glacial ice C. Berends et al. https://doi.org/10.1017/jog.2024.45
- Present-day mass loss rates are a precursor for West Antarctic Ice Sheet collapse T. van den Akker et al. https://doi.org/10.5194/tc-19-283-2025
- A fully implicit second order method for viscous free surface Stokes flow – application to glacier simulations J. Ahlkrona et al. https://doi.org/10.5194/gmd-19-2333-2026
- Strong impact of sub-shelf melt parameterisation on ice-sheet retreat in idealised and realistic Antarctic topography C. Berends et al. https://doi.org/10.1017/jog.2023.33
- Evaluating different geothermal heat-flow maps as basal boundary conditions during spin-up of the Greenland ice sheet T. Zhang et al. https://doi.org/10.5194/tc-18-387-2024
- The Utrecht Finite Volume Ice-Sheet Model (UFEMISM) version 2.0 – Part 1: Description and idealised experiments C. Berends et al. https://doi.org/10.5194/gmd-18-3635-2025
- Benchmarking the vertically integrated ice-sheet model IMAU-ICE (version 2.0) C. Berends et al. https://doi.org/10.5194/gmd-15-5667-2022
- Two-way coupling between ice flow and channelized subglacial drainage enhances modeled marine-ice-sheet retreat G. Lu & J. Kingslake https://doi.org/10.5194/tc-18-5301-2024
- Competing processes determine the long-term impact of basal friction parameterizations for Antarctic mass loss T. van den Akker et al. https://doi.org/10.5194/tc-20-1217-2026
- Late Pleistocene glacial terminations accelerated by proglacial lakes M. Scherrenberg et al. https://doi.org/10.5194/cp-20-1761-2024
- Antarctic meltwater alters future projections of climate and sea level S. Sadai et al. https://doi.org/10.1038/s41467-025-64438-3
- The effect of the present-day imbalance on schematic and climate forced simulations of the West Antarctic Ice Sheet collapse T. van den Akker et al. https://doi.org/10.5194/tc-20-1405-2026
- CO2 and summer insolation as drivers for the Mid-Pleistocene Transition M. Scherrenberg et al. https://doi.org/10.5194/cp-21-1061-2025
- Antarctic sensitivity to oceanic melting parameterizations A. Juarez-Martinez et al. https://doi.org/10.5194/tc-18-4257-2024
- Sensitivity of the future evolution of the Wilkes Subglacial Basin ice sheet to grounding-line melt parameterizations Y. Wang et al. https://doi.org/10.5194/tc-18-5117-2024
- The one-Layer Antarctic model for Dynamical Downscaling of Ice–ocean Exchanges (LADDIE) version 2.0 E. Lambert et al. https://doi.org/10.5194/gmd-19-9441-2026
- A framework for three-dimensional dynamic modeling of mountain glaciers in the Community Ice Sheet Model (CISM v2.2) S. Minallah et al. https://doi.org/10.5194/gmd-18-5467-2025
- Timescales of outlet-glacier flow with negligible basal friction: theory, observations and modeling J. Feldmann & A. Levermann https://doi.org/10.5194/tc-17-327-2023
- Reinforced ridges in Thwaites Glacier yield insights into resolution requirements for coupled ice sheet and solid Earth models L. Houriez et al. https://doi.org/10.5194/tc-19-4355-2025
- Sub-shelf melt pattern and ice sheet mass loss governed by meltwater flow below ice shelves F. Jesse et al. https://doi.org/10.5194/tc-19-3849-2025
- Parameterizing tidal-water intrusions in long-term Antarctic ice-sheet projections A. Juarez-Martinez et al. https://doi.org/10.5194/tc-20-5345-2026
Saved (final revised paper)
Latest update: 31 Oct 2026
Short summary
We present numerical features of the Community Ice Sheet Model in representing ocean termini glaciers. Using idealized test cases, we show that applying melt in a partly grounded cell is beneficial, in contrast to recent studies. We confirm that parameterizing partly grounded cells yields accurate ice sheet representation at a grid resolution of ~2 km (arguably 4 km), allowing ice sheet simulations at a continental scale. The choice of basal friction law also influences the ice flow.
We present numerical features of the Community Ice Sheet Model in representing ocean termini...
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