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 will be able to 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 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.

OGGM is free software. This implies that you are free to use the model and copy or modify its code at your wish, under certain conditions:

  1. When using this software, please acknowledge the original authors of this contribution. Currently, we recommend to use the Zenodo citation for this purpose.

    An example BibTeX entry:

      author       = {Fabien Maussion and
                      Timo Rothenpieler and
                      Ben Marzeion and
                      Johannes Landmann and
                      Felix Oesterle and
                      Alexander Jarosch and
                      Beatriz Recinos and
                      Anouk Vlug},
      title        = {OGGM/oggm: v0.1.1},
      month        = feb,
      year         = 2017,
      doi          = {10.5281/zenodo.292630},
      url          = {https://doi.org/10.5281/zenodo.292630}
  2. Your modifications to the code belong to you, but if you decide to share these modifications with others you’ll have to do so under the same license as OGGM (the GNU General Public License as published by the Free Software Foundation).

See the wikipedia page about GPL and the OGGM license for more information.



Experimental - in development




See Version history for a list of all contributors.


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

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