An open source glacier model in Python

The model builds upon Marzeion et al., (2012) and intends to become a global scale, modular, and open source model for glacier dynamics. The model accounts for glacier geometry (including contributory branches) and includes a simple (yet explicit) ice dynamics module. It can simulate past and future mass-balance, volume and geometry of any glacier in a fully automated workflow. We rely exclusively on publicly available data for calibration and validation.

The project is currently in intense development. Get in touch with us if you want to contribute.

Get in touch

  • To ask questions or discuss OGGM, send us an e-mail.
  • Report bugs, share your ideas or view the source code on GitHub.


OGGM is available under the open source GNU GPLv3 license.



Experimental - in development




Fabien Maussion, Alexander H. Jarosch, Felix Oesterle, Timo Rothenpieler, Ben Marzeion

See whats-new for a list of all contributors.


Austrian Research Foundation FWF, Projects P22443-N21 and P25362-N26

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