Geosci. Model Dev. Discuss., 5, 3771-3851, 2012
www.geosci-model-dev-discuss.net/5/3771/2012/
doi:10.5194/gmdd-5-3771-2012
© Author(s) 2012. This work is distributed
under the Creative Commons Attribution 3.0 License.
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This discussion paper has been under review for the journal Geoscientific Model Development (GMD). Please refer to the corresponding final paper in GMD.
The SURFEXv7.2 land and ocean surface platform for coupled or offline simulation of Earth surface variables and fluxes
V. Masson1, P. Le Moigne1, E. Martin1, S. Faroux1, A. Alias1, R. Alkama1, S. Belamari1, A. Barbu1, A. Boone1, F. Bouyssel1, P. Brousseau1, E. Brun1, J.-C. Calvet1, D. Carrer1, B. Decharme1, C. Delire1, S. Donier1, K. Essaouini2, A.-L. Gibelin1,*, H. Giordani1, F. Habets3, M. Jidane2, G. Kerdraon1, E. Kourzeneva4,5, M. Lafaysse1, S. Lafont1, C. Lebeaupin Brossier1, A. Lemonsu1, J.-F. Mahfouf1, P. Marguinaud1, M. Mokhtari6, S. Morin1, G. Pigeon1, R. Salgado7, Y. Seity1, F. Taillefer1, G. Tanguy1, P. Tulet8, B. Vincendon1, V. Vionnet1, and A. Voldoire1
1CNRM/GAME, URA1357, Météo-France, CNRS, Toulouse and Grenoble, France
2CNRM, Direction de la Météorologie nationale, Casablanca, Morocco
3UMR-SISYPHE, (UPMC, CNRS), Mines-Paristech, Centre de Géosciences, Fontainebleau, France
4Russian State Hydrometeorological University, Malookhtisky Pr., 98, 195196, Saint Petersburg, Russia
5Finnish Meteorological Institute, P.O. Box 503, 00101, Helsinki, Finland
6Office National de la Météorologie (ONM), Algiers, Algeria
7Centro de Geofisica de Evora, University of Evora, Evora, Portugal
8LACy, UMR8105, Université de La Réunion, CNRS, Météo-France, Saint-Denis, France
*now at: the Direction de la Climatologie, Météo-France, Toulouse, France

Abstract. SURFEX is a new externalized land and ocean surface platform that describes the surface fluxes and the evolution of four types of surface: nature, town, inland water and ocean. It can be run either coupled or in offline mode. It is mostly based on pre-existing, well validated scientific models. It can be used in offline mode (from point scale to global runs) or fully coupled with an atmospheric model. SURFEX is able to simulate fluxes of carbon dioxide, chemical species, continental aerosols, sea salt and snow particles. It also includes a data assimilation module. The main principles of the organization of the surface are described first. Then, a survey is made of the scientific module (including the coupling strategy). Finally the main applications of the code are summarized. The current applications are extremely diverse, ranging from surface monitoring and hydrology to numerical weather prediction and global climate simulations. The validation work undertaken shows that replacing the pre-existing surface models by SURFEX in these applications is usually associated with improved skill, as the numerous scientific developments contained in this community code are used to good advantage.

Citation: Masson, V., Le Moigne, P., Martin, E., Faroux, S., Alias, A., Alkama, R., Belamari, S., Barbu, A., Boone, A., Bouyssel, F., Brousseau, P., Brun, E., Calvet, J.-C., Carrer, D., Decharme, B., Delire, C., Donier, S., Essaouini, K., Gibelin, A.-L., Giordani, H., Habets, F., Jidane, M., Kerdraon, G., Kourzeneva, E., Lafaysse, M., Lafont, S., Lebeaupin Brossier, C., Lemonsu, A., Mahfouf, J.-F., Marguinaud, P., Mokhtari, M., Morin, S., Pigeon, G., Salgado, R., Seity, Y., Taillefer, F., Tanguy, G., Tulet, P., Vincendon, B., Vionnet, V., and Voldoire, A.: The SURFEXv7.2 land and ocean surface platform for coupled or offline simulation of Earth surface variables and fluxes, Geosci. Model Dev. Discuss., 5, 3771-3851, doi:10.5194/gmdd-5-3771-2012, 2012.
 
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