Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 16, issue 19
Articles | Volume 16, issue 19
https://doi.org/10.5194/gmd-16-5627-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-16-5627-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 19
Development and technical paper
 | 
10 Oct 2023
Development and technical paper |  | 10 Oct 2023

Modeling sensitivities of thermally and hydraulically driven ice stream surge cycling

Kevin Hank, Lev Tarasov, and Elisa Mantelli

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Short summary
Physically meaningful modeling of geophysical system instabilities is numerically challenging, given the potential effects of purely numerical artifacts. Here we explore the sensitivity of ice stream surge activation to numerical and physical model aspects. We find that surge characteristics exhibit a resolution dependency but converge at higher horizontal grid resolutions and are significantly affected by the incorporation of bed thermal and sub-glacial hydrology models.
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