Ice Sheet Modeling at UAF

Our research is funded by NASA's Modeling, Analysis, and Prediction and Cryospheric Sciences programs, under grants NAG5-11371, NNX09AJ38C, NNX13AM16G, NNX13AK27G
We develop and maintain the Parallel Ice Sheet Model (PISM). It simulates the thickness, temperature, velocity and age of ice sheets. It uses newly-developed techniques to model fast ice dynamics, earth deformation, and conservation of energy in the two-phase fluid. It has complete documentation and a large set of verification and software tests.

We contribute to the SeaRISE assessment process.

PISM has a growing base of users who have done simulations on 1 to 4000 processors on these problems: Greenland ice sheet, Antarctica ice sheet, Svalbard glaciers, Storglaciaren (Sweden), Antarctic ice shelves, and Greenland outlet glaciers. Paleo simulations include Laurentide, North American Cordilleran
, and New Zealandpaleo-ice-sheets.

PISM is jointly developed at the University of Alaska, Fairbanks (UAF) and the Potsdam Institute for Climate Impact Research (PIK). UAF developers are based in the Glaciers Group at the Geophysical Institute and in the Department of Mathematics and Statistics. Development is supported by the NASA Modeling, Analysis, and Prediction program (2009–2017), the NASA Cryospheric Sciences program, and by a grant of resources from the Arctic Region Supercomputing Center.

observed versus PISM-modeled surface velocity from 1km run
Observed (left; Joughin et al, 2010) and PISM-modeled (right;) surface speed for the Greenland ice sheet. From a 1km grid. Click on image to get 7Mb high res version.

modeled ice speed for Ross Ice Shelf, Antarctica


Former group members

Parallel Ice Sheet Model (PISM):




Publications and technical reports:

Presentations & Posters:

Student work:

Codes for verification: