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Photo: C. Matias / Unsplash


What is PISM

Heard about PISM for the first time and want to know what exactly it is?

Read the overview


How to use PISM

Using PISM yourself and forgot about a specific option or want to learn how to use it?

Read the manual


How to get PISM

Want to start using PISM yourself or just want to have a peek into the code?

Get the code


The Parallel Ice Sheet Model (PISM) is an open-source modelling framework for ice sheets and glaciers. It is parallel, thermodynamically-coupled and capable of high resolution. PISM has been widely adopted as a tool for doing science for about twenty years now. The latest stable release is PISM v1.2.2.

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 UAF Geophysical Institute. For more about the team see the developers team page.

PISM development is supported by NASA’s Cryospheric Sciences Programs (grants NNH20ZDA001N-CRYO and NNH20ZDA001N-CRYO) and by NSF grants OPP-1914767, PLR-1603799 and PLR-1644277.

Projection of the Greenland Ice Sheet from 2008-2300 under RCP 8.5. Data from Aschwanden et al. (2019). Video by Cindy Starr (NASA SVS).


If you are looking for help with PISM, feel free to join the PISM workspace on Slack. You can also contact the developers team directly or write an e-mail to uaf-pism@alaska.edu.

Latest news

Version 1.2

We are pleased to announce the release of the Parallel Ice Sheet Model (PISM) v1.2.

MPI-M Hamburg, Germany: open postdoc for coupled atmosphere-ocean-ice sheet model

The Max Planck Institute for Meteorology (MPI-M) contributes to the BMBF project “From the Last Interglacial to the Anthropocene: Modeling a Complete Glacial Cycle” (PalMod, www.palmod.de), which aims at simulating the climate from the peak of the last interglacial up to the present using comprehensive Earth System Models. Phase II of this project has an open position Postdoctoral Scientist (W073). The successful candidate will be part of a local team performing and analysing long-term transient simulations covering the last glacial and the transition into the Holocene with an interactively coupled atmosphere-ocean-ice sheet model. Additionally, the candidate will contribute to the continued development of this model. The model system consists of the MPI-Earth system model, the ice sheet model PISM, and the solid-earth model VILMA.

AWI PostDoc: Antarctic Ice Sheets in warming climates

Dr. Lohmann’s group at AWI is seeking a postdoc to work with PISM and the multi-scale Earth system model AWI-ESM. See