The Javascript Ice Sheet Model (J-ISM) is a browser-based ice sheet model for educational purposes. The model is based on Frank Pattyn’s Excel-based GRANTISM, and thus behaves more or less identically to that model.

The model is available to play with online at
and the code is on GitHub at

The model has been tested on undergrads by Martin O’Leary, Research Officer at the Department of Geography, Swansea University. The instructions he gave the students (3rd year geography undergrads) are accessible at and
Martin O’Leary welcomes comments, issues and bugfixes, please e-mail to:

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