An elastic-viscous-plastic sea ice model formulated on Arakawa B and C grids

The elastic-viscous-plastic (EVP) sea ice rheology has been introduced in the large-scale Louvain-la-Neuve sea-Ice Model, version 2 (LIM2), and its performance has been evaluated. Centred difference versions of the rheology have been implemented on both an Arakawa B grid and a C grid, and their perf...

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Bibliographic Details
Published in:Ocean Modelling
Main Authors: Bouillon, Sylvain, Maqueda, Miguel Angel Morales, Legat, Vincent, Fichefet, Thierry
Other Authors: UCL - SC/PHYS - Département de physique, UCL - FSA/MECA - Département de mécanique, UCL - SST/ELI/ELIC - Earth & Climate
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier Sci Ltd 2009
Subjects:
Sea ice
Coupled sea ice-ocean model
Elastic-viscous-plastic rheology
Model grid
Online Access:http://hdl.handle.net/2078.1/35680
https://doi.org/10.1016/j.ocemod.2009.01.004
Description
Summary:The elastic-viscous-plastic (EVP) sea ice rheology has been introduced in the large-scale Louvain-la-Neuve sea-Ice Model, version 2 (LIM2), and its performance has been evaluated. Centred difference versions of the rheology have been implemented on both an Arakawa B grid and a C grid, and their performance have been intercompared in coupled simulations with the Nucleus for European Modelling of the Ocean (NEMO) model. Integrations with both implementations lead to fairly similar results which compare well with observations and with previous LIM simulations. The C grid version, however, offers a number of advantages: (a) easier ice coupling with NEMO, which is itself defined on a C grid; (b) possibility of representing ice transport across one-cell-wide straits and passages; (c) better representation of inertial-plastic compressive waves. For these reasons, we recommend the use of the C grid EVP formulation of the ice dynamics in future LIM applications. (C) 2009 Elsevier Ltd. All rights reserved.

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