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Nicolas VIOVY

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 Ingénieur/Chercheur, expert senior  CEA

Sujets de recherche

Modélisation des cycles biogéochimiques de la biosphère continentale


2006 Habilitation à diriger des recherches (HDR) université Paris 6

1990 Doctorat de l’institut Polytechnique de Toulouse 

1987 Diplôme d’ingénieur informatique de l’Ecole Nationale Supérieure d'Electronique, d'Electrotechnique d'Informatique et d'Hydraulique de Toulouse (ENSEEIHT)

1985 Maitrise d’informatique de l’université Paris VI


Publications scientifiques

Botta A., N. Viovy, P. Ciais , P. Friedlingstein , P. Monfray (2000) A global prognostic scheme of leaf onset using satellite data Global Change Biology 6 (7): 709-725

Chevallier F, N. Viovy, M. Reichstein , P. Ciais. P. (2006) On the assignment of prior errors in Bayesian inversions of CO2 surface fluxes Geophysical Research Letters 33 (13)

Chuine I., P. Yiou, N. Viovy, B. Seguin, V. Daux, E. Le roy Ladurie (2004) Grape ripening as an indicator of past climate, Nature, 432, pp 289-290

Ciais P., N. Viovy , M. Reichtein , J. Ogée, A. Granier, A. Knohl, S. Rambal, M-J.Sanz, D. Schulze, F. Chevallier and Riccardo Valentini (2005) An Unprecedented Reduction in Primary Productivity of Europe During the Summer Heatwave in 2003, Nature,437,pp 529-533 doi:10.1038/nature03972

Friend A.D. , A. Arneth, N.Y. Kiang, M. Lomas, J. Ogée, C. Rödenbeck, S.W. Running, J.D. Santaren, S. Sitch, N. Viovy, F.I. Woodward, S. Zaehle FLUXNET and global carbon modelling Global change Biology (sous presse)

Gervois S., N Noblet-Ducoudré, N Viovy, P Ciais N Brisson, B Seguin, A Perrier (2004) Improving croplands in the global biosphere model“Coupling” methodology and evaluation at specific sites Earth interaction, 8, pp 1-25

Krinner G., P. Ciais, N. Viovy, P. Friedlingstein (2005a) A simple parameterization of nitrogen limitation on primary productivity for global vegetation models Biogeoscience Discussions, 2, 1243-1282

Krinner G. ,N. Viovy ,N. de Noblet, J. Ogée, P. Friedlingstein P. Ciais, S. Sitch ,J. Polcher , I. C. Prentice (2005b), A dynamic global vegetation model for studies of the coupled atmosphere-biosphere system Global Biogeochemical Cycles, 19, doi:1029/2003GB002199,pp1-33

Lathière J., D.A. Hauglustaine, A. Friend N. de Noblet Ducoudré, N. Viovy, J. Polcher, G. Folberth (2006) Impact of climate variablility and land use changes on global biogenic volatile organic compounds emissions Atmospheric Chemistry and Physics 6: 2129-2146

Loustau D., A. Bosc , A. Colin, J. Ogée, H. Davi , C. François , E. Dufrêne, M. Déqué , E. Cloppet D. Arrouays, C. Le Bas Christine, N. Saby, G. Pignard , N. Hamza A. Granier, N. Breda, P. Ciais, N. Viovy, F. Delage (2005) Modelling the climate change effects on the potential production of French plains forests at the sub regional level. Tree Physiology,25 :813-823

Moulin S., L. Kergoat , N. Viovy , G. Dedieu (1997a) Global Scale Assesment of Vegetation Phenology Using NOAA/AVHRR Satellite Measurements, Journal of Climate,10,1154-1170

Morales P., M. T. Sykes, I. C. Prentice, P. Smith, B. Smith, H. Bugmann, B. Zierl, P. Friedlingstein, N. Viovy, S. Sabaté, A. Sánchez, E. Pla, C. A. Gracia, S. Sitch,, A. Arneth, J. Ogee (2005) Comparing and evaluating process-based ecosystem model predictions of carbon and water fluxes in major European forest biomes Global change biology 11 (12), pp 2211-2233 ,doi:10.1111/j.1365-2486.2005.01046

de Noblet-Ducoudré N., S Gervois, P Ciais, N Viovy, N Brisson, B Seguin, A Perrier (2004) Coupling the Soil-Vegetation-Atmosphere-Transfer Scheme ORCHIDEE to the agronomy model STICS to study the influence of croplands on the European carbon and water budgets, Agronomie, 24, pp 397-407

Piao S., P. Friedlingstein,P. Ciais, N. Viovy (2006), Climate trends in the northern hemisphere and their impact on phenological processes and plant productivity over the last two decades, Global Change Biology, (Revision)

Reichstein M., P. Ciais, D. Papale, R. Valentini, S. Running, N. Viovy, W. Cramer, A. Granier, J. Ogée, V. Allard, M. Aubinet , Chr. Bernhofer, N. Buchmann, A. Carrara, T. Grünwald, B. Heinesch, A. Knohl, D. Loustau, G. Manca, G. Matteucci, F. Miglietta, J.M. Ourcival, K. Pilegaard, J. Pumpanen, S. Rambal, S. Schaphoff, G. Seufert, J.-F. Soussana, M.-J. Sanz, T. Vesala, and M. Heimann (2007) Reduction of ecosystem productivity and respiration during the European summer 2003 heatwave: a joint flux tower, remote sensing and modelling analysis Global change Biology (sous presse)

Santaren D., P. Peylin, N. Viovy and P. Ciais (2006) Optimizing a Process based Ecosystem Model with Eddy-Covariance Measurements of Carbon Dioxide, Water and Energy fluxes: A Case Study for a Pine Forest in Southern France Global change Biology (sous presse)

Seguin B., D. Arrouays, J. Balesdent, J.F. Soussana, A. Bondeau, P. Smith, S. Zaehle, N. de Noblet, N. Viovy (2006) Moderating the impact of agriculture on climate, Agric. Forest. Meteor., sous presse (doi:101016/fagrformet.2006.07.012)

Vautard R., P. Yiou, F. D’Andrea, N. de Noblet, N. Viovy, C. Cassou, J. Polcher, P. Ciais, M. Kageyama, Y. Fan Summertime European heat and drought waves induced by wintertime Mediteranean rainfall deficit, Geophysical Research Letters., (Revision)

Viovy N.(2000), Automatic Classification of Time Series (ACTS): a new clustering method for remote sensing time series, International Journal of Remote Sensing, 21 (6-7): 1537-1560

Viovy N., N. de Noblet (1997b), Coupling water and Carbon cycle in the biosphere, Sci. Géol., Bull., 50,1-4,p 109-121

Viovy N. (1997b), Interannuality and CO2 sensitivity of the SECHIBA-BGC coupled SVAT-BGC model, Physics and Chemistry of the Earth, 21, 489-497

Viovy N., G. Saint (1994) Hidden Markov-Models applied to vegetation dynamics analysis using satellite remote sensing , IEEE Transactions on Geoscience and Remote Sensing 32 (4): 906-917

Viovy N., O. Arino, A.S. Belward (1992) The Best Index Slope Extraction (BISE) – a method for reducing noise in NDVI time series, International Journal of Remote Sensing 13 (8): 1585-1590

Vuichard N. , P. Ciais N. Viovy, J.F. Soussanna, C. Ammann P. Calanca J. Clifton-Brown, J. Fuhere,M. Jones, C. Martin (2007) Estimating the greenhouse gas fluxes of European grasslands with a process based model: Part1. Model evaluation from in-situ measurements Global Biogeochemical Cycles, 21, GB1004, doi:10.1029/2005GB002611

Vuichard N., P Ciais, N Viovy, P Calanca and J.F. Soussanna (2007) Estimating the Greenhouse Gas Fluxes of European Grasslands with a Process Based Model: Part 2. Simulations at the continental level Global Biogeochemical Cycles, 21, GB1005, doi:10.1029/2005GB002612.


Master 2 ICE (INSTN/ENSTA) Module fonctionnement de la biosphère continentale globale 15h

Master 2 CHAN (Paris XI) 3h



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