The Potsdam Parallel Ice Sheet Model (PISM-PIK) – Part 1: Model description
نویسندگان
چکیده
منابع مشابه
The Potsdam Parallel Ice Sheet Model (PISM-PIK) – Part 1: Model description
We present the Potsdam Parallel Ice Sheet Model (PISM-PIK), developed at the Potsdam Institute for Climate Impact Research to be used for simulations of large-scale ice sheet-shelf systems. It is derived from the Parallel Ice Sheet Model (Bueler and Brown, 2009). Velocities are calculated by superposition of two shallow stress balance approximations within the entire ice covered region: the sha...
متن کاملThe Potsdam Parallel Ice Sheet Model (PISM-PIK) – Part 2: Dynamic equilibrium simulation of the Antarctic ice sheet
We present a dynamic equilibrium simulation of the ice sheet-shelf system on Antarctica with the Potsdam Parallel Ice Sheet Model (PISM-PIK). The simulation is initialized with present-day conditions for bed topography and ice thickness and then run to steady state with constant present-day surface mass balance. Surface temperature and sub-shelf basal melt distribution are parameterized. Ground...
متن کاملParameterization for subgrid-scale motion of ice-shelf calving fronts
A parameterization for the motion of ice-shelf fronts on a Cartesian grid in finite-difference land-ice models is presented. The scheme prevents artificial thinning of the ice shelf at its edge, which occurs due to the finite resolution of the model. The intuitive numerical implementation diminishes numerical dispersion at the ice front and enables the application of physical boundary condition...
متن کاملThe Glimmer community ice sheet model
[1] We present a detailed description of the Glimmer ice sheet model, comprising the physics represented in the model and the numerical techniques used. Established methods are combined with good software design to yield an adaptable and widely applicable model. A flexible framework for coupling Glimmer to global climate forcing is also described. Testing and benchmarking is of crucial importan...
متن کاملA Dynamic Memory of Fracture Processes in Ice Shelves
Future sea-level rise has the potential to affect a large fractions of the world’s urbanized areas and many generations to come. In order to design suitable mitigation and adaptation measures, accurate sea-level projections are required. Ice dynamics within the Antarctic Ice Sheet constitutes the major uncertainty in state-of-the-art model approaches. Floating ice shelves around the Antarctic c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Cryosphere
سال: 2011
ISSN: 1994-0424
DOI: 10.5194/tc-5-715-2011