Carbon cycle modelling

Towards the monitoring of natural terrestrial carbon sources and sinks

CNRM has developed the SURFEX surface modelling platform, designed to be coupled with both research and operational atmospheric and hydrological models. SURFEX includes the ISBA-A-gs land surface model, able to simulate photosynthesis, plant growth, and carbon storage. CNRM is involved in the GHG-Europe (project web site) and GEOLAND2 (project web site) European projects, focusing on the monitoring of carbon fluxes and on the assimilation of remote sensing data into land surface models. The objectives of the research studies using ISBA-A-gs are to assess and improve the model, and to develop the assimilation of satellite data into the model.


    • Albergel C., Rüdiger C., Pellarin T., Calvet J.-C. , Fritz N., Froissard F., Suquia D., Petitpa A., Piguet B., Martin E., 2008: From near-surface to root-zone soil moisture using an exponential filter: an assessment of the method based on in-situ observations and model simulations, Hydrol. Earth Syst. Sci., Vol. 12, pp. 1323-1337.
    • Albergel C., Calvet J.-C., Gibelin A.-L., Lafont S., Roujean J.-L., Berne C., Traullé O., Fritz N., 2010 : Observed and modelled gross primary production and ecosystem respiration of a grassland in southwestern France, Biogeosciences, 7, 1657-1668.
    • Albergel C., Calvet J.-C., Mahfouf J.-F., Rüdiger C., Barbu A.L., Lafont S., Roujean J.-L., Walker J.P., Crapeau M., Wigneron J.-P., 2010: Monitoring of water and carbon fluxes using a land data assimilation system: a case study for southwestern France, Hydrol. Earth Syst. Sci., 14, 1109–1124, doi:10.5194/hess-14-1109-2010.
    • Brut A., Rüdiger C., Lafont S., Roujean J.-L., Calvet J.-C., Jarlan L., Gibelin A.-L., Albergel C., Le Moigne P., Soussana J.-F., Klumpp K., Guyon D. , Wigneron J.-P., Ceschia E., 2009: Modelling LAI at a regional scale with ISBA-A-gs: comparison with satellite-derived LAI over southwestern France, Biogeosciences, 6, 1389-1404.
    • Calvet J.C., Noilhan J., Roujean J.L., Bessemoulin P., Cabelguenne M., Olioso A. , Wigneron J.P. , 1998 : An interactive vegetation SVAT model tested against data from six contrasting sites. Agr. For. Meteorol., 92, 92-95.
    • Calvet J.-C., 2000: Investigating soil and atmospheric plant water stress using physiological and micrometeorological data, Agr. For. Meteor., 103, 229-247.
    • Calvet J.-C., Soussana J.-F., 2001 : Modelling CO2-enrichment effects using an interactive vegetation SVAT scheme, Agric. For. Meteorol., 108(2), 129-152.
    • Calvet J.-C., Rivalland V., Picon-Cochard C., Guehl J.-M., 2004 : Modelling forest transpiration and CO2 fluxes - response to soil moisture stress. Agric. For. Meteorol., 124(3-4), 143-156, doi : 10.1016/j.agrformet.2004.01.007.
    • Calvet J.-C., Gibelin A.-L. , Martin E., Le Moigne P., Douville H., Noilhan J., 2008 : Past and future scenarios of the effect of carbon dioxide on plant growth and transpiration for three vegetation types of south-western France, Atmos. Chem. Phys., 8, 397–406.
    • Gibelin A.L., Calvet J.C., Roujean J.L. Jarlan L. and S. Los, 2006: Ability of the land surface model ISBA-A-gs to simulate leaf area index at the global scale : Comparison with satellites products. J. Geophys. Res., 111, D18102.
    • Gibelin A.-L., Calvet J.-C., Viovy N., 2008: Modelling energy and CO2 fluxes with an interactive vegetation land surface model – Evaluation at high and middle latitudes, Agric. For. Meteorol., 148, 1611-1628, doi: 10.1016/j.agrformet.2008.05.013.
    • Jarlan L., G. Balsamo, S. Lafont, A. Bejaars, J.-C. Calvet, E. Mougin, 2008: Analysis of leaf area index in the ECMWF land surface model and impact on latent and carbon fluxes. Application to west Africa, J. Geophys. Res., 113, D24117, doi:10.1029/2007JD009370.
    • Rüdiger C., Albergel C. , Mahfouf J.-F. , Calvet J.-C., Walker J.P., 2010: Evaluation of Jacobians for Leaf Area Index data assimilation with an extended Kalman filter, J. Geophys. Res., 115, D09111, doi:10.1029/2009JD012912.
    • Sabater J.M., Rüdiger C., Calvet J.-C., Fritz N., Jarlan L., Kerr Y., 2008: Joint assimilation of surface soil moisture and LAI observations into a land surface model, Agric. For. Meteorol., 148(8-9), 1362-1373, doi: 10.1016/j.agrformet.2008.04.003.