Documentation for PISM, a parallel Ice Sheet Model

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The Parallel Ice Sheet Model pism0.7 is open source and capable of high resolution. It is widely adopted as a tool for doing science. Features include:

PISM Application of the Month

December 2016

During the Last Glacial Maximum (LGM), glaciers in the Alps reached a maximum extent well-beyond their current coverage (red line). This study models the ice cap using PISM and parameterized forms of the uncertain LGM precipitation pattern. Constraints on the model come from geomorphological reconstruction of ice extent based on interpretation of moraines, trimlines and erratic boulders. The model is forced using different temperature cooling and precipitation reduction factors. Use of the present-day precipitation pattern leads to a systematic overestimation of the ice cover on the northern part of the Alps relative to the southern part. A more severe decrease in precipitation in the north was required to reproduce the LGM extent. This result supports a southwesterly advection of atmospheric moisture to the Alps, sustained by a southward shift of the North Atlantic storm track during the LGM.

2016/12/12 12:50 · Ed Bueler

Latest News

Reminder for authors of PISM-using papers

Please acknowledge the funding that makes PISM possible, and which supports its continued maintenance and technical support. Include the sentence “Development of PISM is supported by NASA grants NNX13AM16G and NNX13AK27G.” in the Acknowledgments part of your paper.

If authors do this consistently then it will help to ensure continued funding of PISM!

For specific suggestions on how to cite the design or justification of PISM see this page.

2016/08/18 11:44 · Ed Bueler

PostDoc in ice sheet and climate modelling at AWI Bremerhaven, Germany

The Paleoclimate Dynamics section at Alfred-Wegener-Institut invites applications for a position as a

PostDoc scientist

with a background in ice sheet or climate modelling for the DFG-project “Global sea level change since the Mid Holocene” (SPP 1889).

Background and tasks:

The aim of this project is to study the evolution of polar ice sheets of the last 6000 years and to estimate the role of climate – ice sheet interactions. Combining climate and ice sheet simulations of different resolution, the project particularly focusses on the ice sheets' mass balance and on ice shelf – ocean interactions under natural and anthropogenic climate change.

The postdoc’s duties will include set-up, supervision, and analysis of climate and ice sheet (PISM) simulations as well as publication in peer-reviewed journals.


The successful candidate should have a PhD in glaciology, atmospheric sciences, oceanography or related sciences and should have a background in either ice sheet or climate modelling.

The position is limited to 3 years, starting August 1st, 2016 or later. The salary will be paid in accordance with the German Tarifvertrag des öffentlichen Dienstes (TVöD Bund), salary level 13. The place of employment will be Bremerhaven.

For further information:

2016/06/15 07:49 · Ed Bueler

PISM stable/dev and PETSc 3.7

PETSc 3.7 was released on April 25, 2016. We are currently working on making PISM compatible with PETSc 3.7 and will announce it here as soon as possible.

In the meantime, please install petsc 3.6.4 from here. PISM version 0.7 (stable0.7 branch) works with any PETSc 3.5.X and higher.

2016/04/27 08:54 · Andy Aschwanden

PISM team

PISM is jointly developed at the University of Alaska, Fairbanks (UAF) and the Potsdam Institute for Climate Impact Research (PIK). For more about the team see the UAF Developers and PIK Developers pages.

UAF developers, who are in the Glaciers Group at the GI, are supported by NASA's Modeling, Analysis, and Prediction and Cryospheric Sciences Programs (grants NAG5-11371, NNX09AJ38C, NNX13AM16G, NNX16AQ40G) and by NSF grants PLR-1603799 and PLR-1644277.

home.txt · Last modified: 2017/02/21 20:48 by Ed Bueler
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