Ocean Sci. Discuss., 8, 1937-1977, 2011
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This discussion paper has been under review for the journal Ocean Science (OS). Please refer to the corresponding final paper in OS.
Towards a regional ocean forecasting system for the IBI (Iberia-Biscay-Ireland area): developments and improvements within the ECOOP project framework
S. Cailleau1, J. Chanut1, J.-M. Lellouche1, B. Levier1, C. Maraldi2, G. Reffray1, and M. Garcia Sotillo3
1Mercator Océan, Toulouse, France
2Service Hydrographique et Océanographique de la Marine, SHOM, Toulouse, France
3Puertos del Estado, PdE, Madrid, Spain

Abstract. ECOOP project allowed the improvement of the regional and coastal operational forecasting systems for the different European Seas. In the Iberia-Biscay-Ireland area (IBI) a regional system has been developed and improved for the project in order to provide IBI partners the best initial and boundary conditions to their embedded coastal systems. End users could also get access to the regional hindcasts and forecasts through the ECOOP website. This system has been upgraded as follow: a first existing version V0, a second base-line version V1 ready for the ECOOP Target Operational Period and a third one V2 which consists in a new generation regional system. This paper especially pays attention to the improvements from the V1 system, whose physics are close to a large scale basin system, to the V2 one which physics are more adapted to shelf and coastal issues. Strong developments which allow further regional physics resolution in the NEMO OGCM such as tide, non linear free surface and adapted vertical mixing scheme among other have been carried out from V1 to V2 versions for the project. Thus, regional thermal fronts due to tidal mixing appear in V2 solution and are quite well placed. Moreover, simulation of the stratification in shelf areas is also improved in V2.

Citation: Cailleau, S., Chanut, J., Lellouche, J.-M., Levier, B., Maraldi, C., Reffray, G., and Garcia Sotillo, M.: Towards a regional ocean forecasting system for the IBI (Iberia-Biscay-Ireland area): developments and improvements within the ECOOP project framework, Ocean Sci. Discuss., 8, 1937-1977, doi:10.5194/osd-8-1937-2011, 2011.
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