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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/gmd-2019-273
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-2019-273
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: model description paper 02 Oct 2019

Submitted as: model description paper | 02 Oct 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).

Description and validation of the ice-sheet model Yelmo (version 1.0)

Alexander Robinson1,2,3, Jorge Alvarez-Solas1,2, Marisa Montoya1,2, Heiko Goelzer4,5, Ralf Greve6, and Catherine Ritz7 Alexander Robinson et al.
  • 1Complutense University of Madrid, Madrid, Spain
  • 2Geosciences Institute CSIC-UCM, Madrid, Spain
  • 3Potsdam Institute for Climate Impact Research, Potsdam, Germany
  • 4Institute for Marine and Atmospheric Research Utrecht, Utrecht, the Netherlands
  • 5Laboratoire de Glaciologie, Université Libre de Bruxelles, Brussels, Belgium
  • 6Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
  • 7Institute for Geosciences and Environmental Research, Grenoble, France

Abstract. We describe the physics and features of the ice-sheet model Yelmo, an open-source project intended for collaborative development. Yelmo is a thermomechanical model, solving for the coupled velocity and temperature solutions of an ice sheet simultaneously. The ice dynamics are currently treated via a "hybrid" approach combining the shallow-ice and shallow-shelf/shelfy-stream approximations, which makes Yelmo an apt choice for studying a wide variety of problems. Yelmo's main innovations lie in its flexible and user-friendly infrastructure, which promotes portability and facilitates long-term development. In particular, all physics subroutines have been designed to be self-contained, so that they can be easily ported from Yelmo to other models, or easily replaced by improved or alternate methods in the future. Furthermore, hard-coded model choices are eschewed, replaced instead with convenient parameter options that allow the model to be adapted easily to different contexts. We show results for different ice-sheet benchmark tests, and we illustrate Yelmo's performance for the Antarctic ice sheet.

Alexander Robinson et al.
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Status: open (until 27 Nov 2019)
Status: open (until 27 Nov 2019)
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Alexander Robinson et al.
Model code and software

Yelmo v1.0 A. Robinson, J. Alvarez-Solas, M. Montoya, H. Goelzer, R. Greve, and C. Ritz https://doi.org/10.5281/zenodo.3443654

Alexander Robinson et al.
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Latest update: 15 Oct 2019
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Short summary
Here we describe Yelmo v1.0, an intuitive and state-of-the-art hybrid ice sheet model. The model design and physics are described, and benchmark simulations are provided to validate its performance. Yelmo is a versatile ice sheet model that can be applied to a wide variety of problems.
Here we describe Yelmo v1.0, an intuitive and state-of-the-art hybrid ice sheet model. The model...
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