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- Title
Description and validation of the ice-sheet model Yelmo (version 1.0).
- Authors
Robinson, Alexander; Alvarez-Solas, Jorge; Montoya, Marisa; Goelzer, Heiko; Greve, Ralf; Ritz, Catherine
- 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.
- Subjects
ANTARCTIC ice; ICE sheets; MODEL validation; MELTWATER; PHYSICS; ICE
- Publication
Geoscientific Model Development, 2020, Vol 13, Issue 6, p2805
- ISSN
1991-959X
- Publication type
Article
- DOI
10.5194/gmd-13-2805-2020