September 2011

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The Potsdam Parallel Ice Sheet Model (PISM-PIK) – Part 2: Dynamic equilibrium simulation of the Antarctic ice sheet
ice sheet:	Antarctic ice sheet
investigators:	Maria Martin, Potsdam Institute for Climate Impact Research, and colleagues
venue:	The Cryosphere

This paper presents a dynamic equilibrium simulation of the ice sheet-shelf system on Antarctica with the Potsdam Parallel Ice Sheet Model (PISM-PIK) with a focus on the Ronne-Filchner and Ross ice shelf areas as well as on the whole ice-sheet system.

PISM-PIK (and now PISM) allows free movement of grounding lines and calving fronts thanks to a physically-motivated calving law based on horizontal spreading rates and an implementation of a calving-front stress boundary condition.

The results support the approach of superposition of SIA and SSA for the representation of fast motion of grounded ice.