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Florian LEMARIÉ

Researcher at INRIA Rhône-Alpes

Contact

Laboratoire Jean Kuntzmann
office 185 (1st floor)
Bâtiment IMAG
700 Avenue Centrale
38400 Saint Martin d'Hères
France

E-mail : florian.lemarie [at] inria.fr
Phone : +33 (0)4 57 42 17 57

Education

Professional experience

  • since jan. 2013 : Inria researcher, AIRSEA Team and member of the Laboratoire Jean Kuntmann
  • 2009-2012 : Post-doctoral position, department of atmospheric and oceanic sciences, University of California at Los Angeles
  • Educational background

  • 2005-2008 : Ph.D thesis, in Applied mathematics, Joseph Fourier university, Grenoble, France.
  • 2003-2004 : Master of science in Mathematics and Statistics, University of Montreal, Canada
  • 1999-2004 : Engineering degree in Applied Mathematics and Computer Sciences from the INSA (National Institute of Applied Sciences), Rouen, France
  • Research

    Topics

  • Time-stepping algorithms for the split-explicit, free-surface, primitive equations models
  • Optimized Global-in-time Schwarz methods (a.k.a. Schwarz Waveform Relaxation)
  • Ocean-Atmosphere coupling methods
  • Advection-diffusion schemes for ocean models
  • Mesh refinement methods for structured grids
  • Mesoscale air-sea interactions over oceanic fronts
  • Ongoing projects

  • IDEX-Cross Disciplinary Program TRAJECTORIES (2017-2021)
  • ANR COCOA [co P.I.] (2016-2020)
  • CMEMS ALBATROS [P.I.] (2016-2019)
  • PPR SIMBAD [P.I.] (2015-2018)
  • ANR HEAT (2014-2018)
  • ANR COMODO (2012-2016)
  • Master's students

  • Pierre Jolivet (MSIAM, 2011) [now research scientist at CNRS]
  • Pierre Marchand (ENPC, 2015) [now PhD student at UPMC]
  • Gino Rivano (University of Valparaiso, 2017)
  • Sophie Thery (MSIAM, 2017)
  • Graduate engineers

  • Mustafa Inanoglu (IM2AG, 2015)
  • Roland Patoum (ENSTA Bretagne, 2017-2018)
  • PhD students

  • Rémi Pellerej
  • Advisor Arthur Vidard (Inria AIRSEA), since sept. 2014
    title : Data assimilation for coupled ocean-atmosphere models
  • Charles Pelletier
  • Advisor Eric Blayo (UGA), since dec. 2014
    title : Mathematical and numerical study of coupling issues in climate models"

    Publications


  • PhD Thesis
  • F. Lemarié, Algorithmes de Schwarz et couplage océan-atmosphère, Université Joseph-Fourier - Grenoble I (2008-11-17)

  • Numerical Modelling
  • K. Klingbeil, L. Debreu, F. Lemarié, H. Burchard : The numerics of hydrostatic structured-grid coastal ocean models: state of the art and future perspectives , Ocean Modelling, in revision, 2017 [hal-inria]

    Y. Soufflet, P. Marchesiello, F. Lemarié, J. Jouanno, X. Capet, L. Debreu, R. Benshila : On effective resolution in ocean models. Ocean Modelling, 98, pp 36-50, 2016 [hal-inria]

    F. Lemarié, L. Debreu, G. Madec, J. Demange, J.-M. Molines, M. Honnorat : Stability constraints for oceanic numerical models: implications for the formulation of time and space discretizations. Ocean Modelling, 92, pp 124-148, 2015 [hal-inria]

    J. Demange, L. Debreu, F. Lemarié, P. Marchesiello, E. Blayo : Numerical representation of internal waves propagation. [Research Report RR-8590], INRIA Grenoble, pp 1-21, 2014 [hal-inria]

    J. Demange, L. Debreu, P. Marchesiello, F. Lemarié, E. Blayo : On the use of a depth-dependent barotropic mode in ocean models: impact on the stability of the coupled barotropic/baroclinic system. [Research Report RR-8589], INRIA Grenoble, pp 1-27, 2014 [hal-inria]

    F. Lemarié, L. Debreu, A. Shchepetkin, J.C. McWilliams : On the Stability and Accuracy of the harmonic and biharmonic isoneutral mixing operators in ocean models. Ocean Modelling, 52-53, pp 9-35, 2012 [hal-inria]

    F. Lemarié, J. Kurian, A. Shchepetkin, J. Molemaker, F. Colas, J.C. McWilliams : Are there inescapable issues prohibiting the use of terrain-following coordinates in climate models ? Ocean Modelling, 42, pp 57-79, 2012 [hal-inria]

    F. Lemarié, M. Honnorat : The coupled multi-scale downscaling climate system : A decision-making tool for developing countries, IEEE Oceans, pp.1-9, doi: 10.1109/OCEANS.2010.5664389, 2010 [hal-inria]

    Marchesiello, P., J. Lefevre, P. Penven, F. Lemarié, L. Debreu, P. Douillet, A. Vega, P. Derex, V. Echevin, B. Dewitte : Keys to affordable regional marine forecast systems. Mercator Ocean Quaterly Newsletter, 30, pp. 38-48, July 2010

  • Multi-physics coupling
  • C. Pelletier, F. Lemarié, E. Blayo : Sensitivity analysis and metamodels for the bulk parameterization of turbulent air-sea fluxes, Q. J. Roy. Met. Soc., in revision, 2017

    A. Beljaars, E. Dutra, G. Balsamo, F. Lemarié : On the numerical stability of surface-atmosphere coupling in weather and climate models, Geosci. model dev., doi:10.5194/gmd-2016-96, 2017 [hal-inria]

    M. Gross, H. Wan, P. J. Rasch, P. M. Caldwell, D. L. Williamson, D. Klocke, C. Jablonowski, D. R. Thatcher, N. Wood, M. Cullen, B. Beare, M. Willett, F. Lemarié, E. Blayo, S. Malardel, P. Termonia, A. Gassmann, P. H. Lauritzen, H. Johansen, C. M. Zarzycki, K. Sakaguchi, and R. Leung : Recent progress and review of Physics Dynamics Coupling in geophysical models, Mon. Wea. Rev., submitted, 2017 [hal-inria]

    R. Pellerej, P. A. Vidard, F. Lemarié : Toward variational data assimilation for coupled models: first experiments on a diffusion problem, CARI 2016, Tunis, Tunisia [hal]

    L. Renault, J. Molemaker, J. McWilliams, A. Shchepetkin, F. Lemarié, D. Chelton, S. Iig, A. Hall : Modulation of wind-work by oceanic current interaction with the atmosphere, J. Phys. Oceanogr., doi: 10.1175/JPO-D-15-0232.1, 2016 [hal-inria]

    V. Oerder, F. Colas, V. Echevin, S. Masson, C. Hourdin, S. Jullien, F. Lemarié, G. Madec : Mesoscale SST-Wind Stress coupling in the Peru-Chile Current System: which mechanisms drive its seasonal variability ? Climate Dynamics, doi: 10.1007/s00382-015-2965-7, 2016 [hal-inria]

    F. Lemarié, E. Blayo, L. Debreu : Analysis of Ocean-atmosphere Coupling Algorithms: Consistency and Stability. Procedia Computer Science, 51, pp. 2066–2075, 2015 [hal-inria]

    F. Lemarié, P. Marchesiello, L. Debreu, E. Blayo : Sensitivity of Ocean-Atmosphere Coupled Models to the Coupling Method : Example of Tropical Cyclone Erica. [Research Report RR-8651], INRIA Grenoble, pp 1-31, 2014

    F. Lemarié, L. Debreu, E. Blayo : Toward an optimized global-in-time Schwarz algorithm for diffusion equations with discontinuous and spatially variable coefficients. Part 1 : the constant coefficients case. Elec. Trans. Num. Anal., 40, pp. 148-169, 2013 [hal-inria]

    F. Lemarié, L. Debreu, E. Blayo : Toward an optimized global-in-time Schwarz algorithm for diffusion equations with discontinuous and spatially variable coefficients. Part 2 : the variable coefficients case. Elec. Trans. Num. Anal., 40, pp. 170-186, 2013 [hal-inria]

    F. Lemarié, L. Debreu, E. Blayo : Optimal control of the convergence rate of Global-in-time Schwarz algorithms, In: R. Bank et al. (eds), Domain Decomposition in Science and Engineering XX, Lecture Notes in Computational Science and Engineering 91, doi 10.1007/978-3-642-35275-1_71, Springer-Verlag, pp. 599–606, 2013 [hal-inria]

  • Mesh Refinement
  • J. Jouanno, J. Sheinbaum, B. Barnier, J.-M. Molines, L. Debreu, F. Lemarié : The mesoscale variability in the Caribbean Sea. Part I: simulations and characteristics with an embedded model. Ocean Modelling, 2008 [hal-inria]

    Conferences (2013-2017)

    F. Lemarié, L. Debreu, J. Demange, P. Marchesiello, E. Blayo : Stability analysis of split-explicit ocean models, Mathematics of Weather, Erquy, France, Oct 2017

    F. Lemarié, J.L. Redelsperger, X. Couvelard, R. Patoum : Toward an improved representation of air-sea interactions in high-resolution global oceanic forecasting systems, Copernicus Marine week, Brussels, Belgium, Sept 2017

    F. Lemarié, J.L. Redelsperger, X. Couvelard, R. Patoum : High-resolution ocean, waves, atmosphere interaction: Modelling of the atmospheric boundary layer, Global Monitoring and Forecasting Centre meeting, Toulouse, France, June 2017

    F. Lemarié, C. Pelletier, E. Blayo : A theoretical study of a simplified air-sea coupling problem including turbulent parameterizations, VII International Conference on Coupled Problems in Science and Engineering, Rhodes, Greece, June 2017

    F. Lemarié : Time-stepping of the CROCO hydrostatic code and its impact on code structure (and on advection schemes), 1st CROCO User Meeting, Toulouse, France, May 2017

    F. Lemarié : Analysis of Ocean-atmosphere Coupling Algorithms: Consistency and Stability, Workshop "Energy transfers in Atmosphere and Ocean", Hamburg, Germany, May 2017

    F. Lemarié, G. Samson, J.L. Redelsperger, H. Giordani, G. Madec : Toward an improved representation of air-sea interactions in high-resolution global ocean forecasting systems, European Geosciences Union General Assembly, Vienna, Austria, Apr 2017.

    F. Lemarié, H. Burchard, K. Klingbeil, L. Debreu : Multi-process test cases to perform comparative analysis of oceanic models, AGU General Assembly, San Francisco, USA, Dec 2016.

    F. Lemarié, L. Debreu : A compact high-order coupled time and space discretization to represent vertical transport in oceanic models, Joint Numerical Sea Modelling Group Conference, Oslo, Norway, May 2016.

    R. Pellerej, A. Vidard, F. Lemarié : Toward variational data assimilation for coupled models: first experiments on a diffusion problem, 5th International Symposium on Data Assimilation (ISDA), Reading, United Kingdom, Jul. 2016

    F. Lemarié, L. Debreu : Feasibility of a high-order semi-implicit vertical advection scheme in oceanic models, AGU Ocean Sciences Meeting, New Orleans, USA, Feb 2016.

    F. Lemarié : Improving vertical advection in ocean modeling, Partial Differential Equations on the Sphere workshop, Seoul, South Korea, Oct 2015.

    F. Lemarié : Numerical and physical delicacies in coupled ocean-atmosphere simulations, Physics dynamics coupling in geophysical models - bridging the gap, Ensenada, Mexico, Dec 2014.

    L. Debreu, F. Lemarié and E. Blayo : Schwarz waveform relaxation for heterogeneous cluster computing and applications, 43th SPEEDUP Workshop on High-Performance Computing, Geneva, Switzerland, Sept. 2014.

    F. Lemarié : Difficultés et Progrès dans le couplage océan-atmosphère du point de vue numérique, Journée thématique LEFE-MANU ”Couplage océan-atmosphère”, Paris, France, Apr. 2014.

    L. Debreu, F. Lemarié, P. Marchesiello : Numerical delicacies associated with the use of isoneutral mixing operators in ocean models, Partial Differential Equations on the Sphere workshop, Boulder, USA, Apr. 2014

    F. Lemarié, E. Audusse : Méthodes numériques pour la modélisation de l'océan et de l'atmosphère, 42ème Congrès National d'Analyse Numérique (Mini-Symposium), Carry-le-Rouet, France, Apr. 2014

    F. Lemarié, L. Debreu, G. Madec, M. Honnorat, J.M. Molines : Stability constraints for oceanic numerical models: implications for the formulation of space-time discretizations, AGU Ocean Sciences Meeting, Honolulu, HI, 24-28 Feb. 2014.

    F. Lemarié : Méthodes mathématiques et numériques en océanographie et météorologie, Séminaire de Mécanique d'Orsay, Orsay, France, Jan. 2014.

    F. Lemarié : Delicacies and progress in ocean-atmosphere coupling, LEFE Prospective meeting on environmental fluid mechanics, Toulouse, France, Jan. 2014.

    F. Lemarié, A. Rousseau : Domain Decomposition Methods for Environmental Modeling, 22nd International Conference on Domain Decomposition Methods (Mini-Symposium), Lugano, Switzerland, Sept. 2013.

    F. Lemarié : Mathematical and numerical delicacies in coupled ocean-atmosphere simulations, SIAM Conference on Mathematical & Computational Issues in the Geosciences, Padova, Italia, June 2013.

    F. Lemarié : Isoneutral Mixing Operators In Oceanic Models : Numerical Delicacies, European Geosciences Union General Assembly 2013, Vienna, Austria, Apr. 2013.

    Software