2012 LIWG Workshop Presentations LIWG Summary William Lipscomb Ice sheet model development for CESM1.1 Bill Sacks, NCAR-CGD Greenland Ice Sheet optimization in the CESM framework: Obtaining a good preindustrial ice sheet for future simulations Jeremy Fyke Resolving grounding line dynamics with the BISICLES AMR ice sheet model Daniel Martin SEACISM: Parallel implementation and performance Patrick Worley Preconditioning techniques based on two-level domain decomposition methods Duk-soon Oh Development of a land ice core for the Model for Prediction Across Scales (MPAS) Matthew Hoffman Simulations of ice-shelf cavities in POP Xylar Asay-Davis Update on Development and Application of the CISM Stephan Price