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| Titel |
The Louvain-La-Neuve sea ice model LIM3.6: global and regional capabilities |
| VerfasserIn |
C. Rousset, M. Vancoppenolle, G. Madec, T. Fichefet, S. Flavoni, A. Barthélemy, R. Benshila, J. Chanut, C. Levy, S. Masson, F. Vivier |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1991-959X
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 8, no. 10 ; Nr. 8, no. 10 (2015-10-01), S.2991-3005 |
| Datensatznummer |
250116590
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| Publikation (Nr.) |
 copernicus.org/gmd-8-2991-2015.pdf |
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| Zusammenfassung |
| The new 3.6 version of the Louvain-la-Neuve sea ice model (LIM) is presented,
as integrated in the most recent stable release of Nucleus for European
Modelling of the Ocean (NEMO) (3.6). The release will be used for the next
Climate Model Inter-comparison Project (CMIP6). Developments focussed around
three axes: improvements of robustness, versatility and sophistication of the
code, which involved numerous changes. Robustness was improved by enforcing
exact conservation through the inspection of the different processes driving
the air–ice–ocean exchanges of heat, mass and salt. Versatility was
enhanced by implementing lateral boundary conditions for sea ice and more
flexible ice thickness categories. The latter includes a more practical
computation of category boundaries, parameterizations to use LIM3.6 with a
single ice category and a flux redistributor for coupling with atmospheric
models that cannot handle multiple sub-grid fluxes. Sophistication was
upgraded by including the effect of ice and snow weight on the sea surface.
We illustrate some of the new capabilities of the code in two standard
simulations. One is an ORCA2-LIM3 global simulation at a nominal 2°
resolution, forced by reference atmospheric climatologies. The other one is a
regional simulation at 2 km resolution around the Svalbard Archipelago in
the Arctic Ocean, with open boundaries and tides. We show that the LIM3.6
forms a solid and flexible base for future scientific studies and model
developments. |
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