Articles | Volume 8, issue 10
https://doi.org/10.5194/gmd-8-3199-2015
https://doi.org/10.5194/gmd-8-3199-2015
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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Cited articles

Abe-Ouchi, A. and Blatter, H.: On the initiation of ice sheets, Ann. Glaciol., 18, 203–203, 1993.
Abe-Ouchi, A., Saito, F., Kawamura, K., Raymo, M. E., Okuno, J., Takahashi, K., and Blatter, H.: Insolation-driven 100,000-year glacial cycles and hysteresis of ice-sheet volume, Nature, 500, 190–193, 2013.
BODC: British oceanographic data centre, The GEBCO_08 Grid, version 20091120, available at: http://www.gebco.net (last access: 6 October 2013), 2010.
Budd, W. F. and Smith, I.: The growth and retreat of ice sheets in response to orbital radiation changes, Sea Level, Ice, and Climatic Change, 369–409, 1981.
Clarke, G. K.: Fast glacier flow: ice streams, surging, and tidewater glaciers, J. Geophys. Res.-Sol. Ea., 92, 8835–8841, 1987.
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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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