Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 8, issue 10
Articles | Volume 8, issue 10
https://doi.org/10.5194/gmd-8-3199-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/gmd-8-3199-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 8, issue 10
Development and technical paper
 | 
08 Oct 2015
Development and technical paper |  | 08 Oct 2015

A new sub-grid surface mass balance and flux model for continental-scale ice sheet modelling: testing and last glacial cycle

K. Le Morzadec, L. Tarasov, M. Morlighem, and H. Seroussi

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Short summary
A long-term challenge for any model of complex large-scale processes is accounting for the impact of unresolved sub-grid (SG) processes. We quantify the impact of SG mass-balance and ice fluxes on glacial cycle ensemble results for North America. We find no easy solutions to accurately capture these impacts. We show that SG process representation and associated parametric uncertainties can have significant impact on coarse resolution model results for glacial cycle ice sheet evolution.
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