PISM-PIK

Here are three topical pages at the webpage of Prof. Anders Levermann describing work using and developing PISM at PIK:

• Antarctica in PISM
• Sea level changes in PISM
• Iceberg calving in PISM

Investigators:

• Anders Levermann levermann@pik-potsdam.de
• Torsten Albrecht albrecht@pik-potsdam.de
• Marianne Haseloff haseloff@pik-potsdam.de
• Maria Martin martin@pik-potsdam.de
• Mattias Mengel matthias.mengel@pik-potsdam.de
• Ricarda Winkelmann winkelmann@pik-potsdam.de

Developers at the Potsdam Institute for Climate Impact Research (PIK), Germany, created the Potsdam Parallel Ice Sheet Model, PISM-PIK, in 2008–2009 as a derived class of PISM stable0.2. Changes were made to the PISM base model in spring 2011 so that PISM-PIK capabilities are now part of the stable0.4 release of PISM itself, and of future releases.

Processes like ice shelf calving and stress boundary conditions become increasingly important particularly for future sea level projections due to their effect on the dynamics upstream of the grounding line. PIK has introduced modifications of PISM ice shelf dynamics with a special focus on modeling the Antarctic ice sheet-shelf system. New features and applications include:

• modules to account for the stress boundary condition and the mass transport parameterization at the ice margin enabling proper movement of the calving front (Albrecht et al., 2011; Winkelmann et al., 2011)
• a physically motivated calving law (Winkelmann et al., 2011; Levermann et al., 2012)
• a dynamic equilibrium simulation for present-day boundary conditions reproduces observed dynamical features of the Antarctic sheet-shelf system well (Martin et al., 2011; Levermann et al., 2012).