Francois Counillon's picture

Francois Counillon

Associate Professor
Journal articles
  • Kimmritz, Madlen; Counillon, Francois; Smedsrud, Lars H.; Bethke, Ingo; Keenlyside, Noel; Ogawa, Fumiaki; Wang, Yiguo. 2019. Impact of ocean and sea ice initialisation on seasonal prediction skill in the Arctic. Journal of Advances in Modeling Earth Systems. doi: 10.1029/2019MS001825
  • Li, Fei; Orsolini, Yvan; Keenlyside, Noel; Shen, Mao-Lin; Counillon, Francois; Wang, Yiguo. 2019. Impact of snow initialization in subseasonal-to-seasonal winter forecasts with the Norwegian Climate Prediction Model. Journal of Geophysical Research (JGR): Atmospheres. 124: 10033-10048. doi: 10.1029/2019JD030903
  • Penny, Stephen G.; Akella, Santha; Balmaseda, Magdalena A.; Browne, Philip; Carton, James A.; Chevallier, Matthieu; Counillon, Francois; Domingues, Catia; Frolov, Sergey; Heimbach, Patrick; Hogan, Patrick; Hoteit, Ibrahim; Iovino, Doroteaciro; Laloyaux, Patrick; Martin, Matthew J.; Masina, Simona; Moore, Andrew M.; de Rosnay, Patricia; Schepers, Dinand; Sloyan, Bernadette M.; Storto, Andrea; Subramanian, Aneesh; Nam, SungHyun; Vitart, Frederic; Yang, Chunxue; Fujii, Yosuke; Zuo, Hao; O'Kane, Terry; Sandery, Paul; Moore, Thomas; Chapman, Christopher C. 2019. Observational needs for improving ocean and coupled reanalysis, S2S Prediction, and decadal prediction. Frontiers in Marine Science. 6:391: 1-18. doi: 10.3389/fmars.2019.00391
  • Storto, Andrea; Alvera-Azcarate, Aida; Balmaseda, Magdalena A.; Barth, Alexander; Chevallier, Matthieu; Counillon, Francois; Dominiques, Catia M.; Drevillon, Marie; Drillet, Yann; Forget, Gael; Garric, Gilles; Haines, Keith; Hernandez, Fabrice; Lovino, Doroteaciro; Jackson, Laura C.; Lellouche, Jean-Michel; Masina, Simona; Mayer, Michael; Oke, Peter R.; Penny, Stephen G.; Peterson, K. Andrew; Yang, Chunxue; Zuo, Hao. 2019. Ocean Reanalyses: Recent Advances and Unsolved Challenges. Frontiers in Marine Science. doi: 10.3389/fmars.2019.00418
  • Wang, Yiguo; Counillon, Francois; Keenlyside, Noel; Svendsen, Lea; Gleixner, Stephanie; Kimmritz, Madlen; Dai, Panxi; Gao, Yongqi. 2019. Seasonal predictions initialised by assimilating sea surface temperature observations with the EnKF. Climate Dynamics. 19: 5777-5797. doi: 10.1007/s00382-019-04897-9
  • Kimmritz, Madlen; Counillon, Francois; Bitz, Cecilia M.; Massonnet, François; Bethke, Ingo; Gao, Yongqi. 2018. Optimising assimilation of sea ice concentration in an Earth system model with a multicategory sea ice model. Tellus. Series A, Dynamic meteorology and oceanography. 70:1435945: 1-23. doi: 10.1080/16000870.2018.1435945
  • Xie, Jiping; Counillon, Francois; Bertino, Laurent. 2018. Impact of assimilating a merged sea-ice thickness from CryoSat-2 and SMOS in the Arctic reanalysis. The Cryosphere. 12: 3671-3691. Published 2018-11-26. doi: 10.5194/tc-12-3671-2018
  • Zhang, Shaoqing; Xie, Yuanfu; Counillon, Francois; Ma, Xiaohui; Yu, Peng; Jing, Zhao. 2018. Regional Coupled Model and Data Assimilation. Advances in Meteorology. 2018. 2 pages. doi: 10.1155/2018/9434102
  • de Vos, Marc; Backeberg, Bjørn; Counillon, Francois. 2018. Using an eddy-tracking algorithm to understand the impact of assimilating altimetry data on the eddy characteristics of the Agulhas system. Ocean Dynamics. 68: 1071-1091. doi: 10.1007/s10236-018-1174-4
  • Gleixner, Stephanie Nikola; Keenlyside, Noel; Demissie, Teferi Dejene; Counillon, Francois; Wang, Yiguo; Viste, Ellen. 2017. Seasonal predictability of Kiremt rainfall in coupled general circulation models. Environmental Research Letters. 12. doi: 10.1088/1748-9326/aa8cfa
  • Koseki, Shunya; Keenlyside, Noel; Demissie, Teferi Dejene; Toniazzo, Thomas; Counillon, Francois; Bethke, Ingo; Ilicak, Mehmet; Shen, Mao-Lin. 2017. Causes of the large warm bias in the Angola–Benguela Frontal Zone in the Norwegian Earth System Model. Climate Dynamics. 1-20. doi: 10.1007/s00382-017-3896-2
  • Wang, Yiguo; Counillon, Francois; Bethke, Ingo; Keenlyside, Noel; Bocquet, Marc; Shen, Mao-Lin. 2017. Optimising assimilation of hydrographic profiles into isopycnal ocean models with ensemble data assimilation. Ocean Modelling. 114: 33-44. doi: 10.1016/j.ocemod.2017.04.007
  • Xie, Jiping; Bertino, Laurent; Lisæter, Knut Arild; Counillon, Francois; Sakov, Pavel. 2017. Quality assessment of the TOPAZ4 reanalysis in the Arctic over the period 1991-2013. Ocean Science. 13: 123-144. doi: 10.5194/os-13-123-2017
  • Counillon, Francois; Keenlyside, Noel; Bethke, Ingo; Wang, Yiguo; Billeau, Sebastien; Shen, Mao-Lin; Bentsen, Mats. 2016. Flow-dependent assimilation of sea surface temperature in isopycnal coordinates with the Norwegian climate prediction model. Tellus. Series A, Dynamic meteorology and oceanography. 68:32437. doi: 10.3402/tellusa.v68.32437
  • Lien, Vidar Surén; Hjøllo, Solfrid Sætre; Skogen, Morten D.; Svendsen, Einar; Wehde, Henning; Bertino, Laurent; Counillon, Francois; Chevalier, Matthieu; Giles, Garric. 2016. An assessment of the added value from data assimilation on modelled Nordic Seas hydrography and ocean transports. Ocean Modelling. 99: 43-59. doi: 10.1016/j.ocemod.2015.12.010
  • Wang, Yiguo; Counillon, Francois; Bertino, Laurent. 2016. Alleviating the bias induced by the linear analysis update with an isopycnal ocean model. Quarterly Journal of the Royal Meteorological Society. 142: 1064-1074. doi: 10.1002/qj.2709
  • Xie, Jiping; Counillon, Francois; Bertino, Laurent; Tian-Kunze, Xiangshan; Kaleschke, Lars. 2016. Benefits of assimilating thin sea ice thickness from SMOS into the TOPAZ system. The Cryosphere. 10: 2745-2761. doi: 10.5194/tc-10-2745-2016
  • Ferreira, Ana Sofia de Araújo; Hátún, H.; Counillon, Francois; Payne, M.R; Visser, A.W. 2015. Synoptic-scale analysis of mechanisms driving surface chlorophyll dynamics in the North Atlantic. Biogeosciences. 12: 3641-3653. doi: 10.5194/bg-12-3641-2015
  • Korosov, Anton; Counillon, Francois; Johannessen, Johnny Andre. 2015. Monitoring the spreading of the Amazon freshwater plume by MODIS, SMOS, Aquarius, and TOPAZ. Journal of Geophysical Research (JGR): Oceans. 120: 268-283. doi: 10.1002/2014JC010155
  • Xie, Jiping; Zhu, Jiang; Bertino, Laurent; Counillon, Francois. 2015. Analysis of the northern South China Sea counter-wind current in winter using a data assimilation model. Ocean Dynamics. doi: 10.1007/s10236-015-0817-y
  • Backeberg, Bjørn; Counillon, Francois; Johannessen, Johnny Andre; Pujol, M. 2014. Assimilating along-track SLA data using the EnOI in an eddy resolving model of the Agulhas system. Ocean Dynamics. 64: 1121-1136. doi: 10.1007/s10236-014-0717-6
  • Counillon, Francois; Bethke, Ingo; Keenlyside, Noel; Bentsen, Mats; Bertino, Laurent; Zheng, Fei. 2014. Seasonal-to-decadal predictions with the ensemble kalman filter and the Norwegian earth System Model: A twin experiment. Tellus. Series A, Dynamic meteorology and oceanography. 66:21074. doi: 10.3402/tellusa.v66.21074
  • Johannessen, Johnny Andre; Raj, Roshin Pappukutty; Nilsen, Jan Even Øie; Pripp, Trond; Knudsen, Per; Counillon, Francois; Stammer, Detlef; Bertino, Laurent; Andersen, Ole; Serra, Nuno; Koldunov, Nikolay. 2014. Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE. Surveys in geophysics. 35: 661-679. doi: 10.1007/s10712-013-9270-y
  • Massonnet, François; Goosse, Hugues; Fichefet, Thierry; Counillon, Francois. 2014. Calibration of sea ice dynamic parameters in an ocean-sea ice model using an ensemble Kalman filter. Journal of Geophysical Research (JGR): Oceans. 119: 4168-4184. doi: 10.1002/2013JC009705
  • Lauvset, Siv Kari; Chierici, Melissa; Counillon, Francois; Omar, Abdirahman; Nondal, Gisle; Johannessen, Truls; Olsen, Are. 2013. Annual and seasonal fCO(2) and air-sea CO2 fluxes in the Barents Sea. Journal of Marine Systems. 113-114: 62-74. doi: 10.1016/j.jmarsys.2012.12.011
  • Petrenko, Dmitry; Pozdnyakov, Dmitry; Johannessen, Johnny Andre; Counillon, Francois; Sychov, Vitaly. 2013. Satellite-derived multi-year trend in primary production in the Arctic Ocean. International Journal of Remote Sensing. 34: 3903-3937. doi: 10.1080/01431161.2012.762698
  • Petrenko, Dmitry; Zabolotsikh, E.V.; Pozdnyakov, Dmitry; Counillon, Francois; Karlin, L.N. 2013. Interannual variations and trend of the production of inorganic carbon by coccolithophores in the arctic in 2002–2010 based on satellite data. Izvestiya, Atmospheric and Oceanic Physics. 49: 871-878. doi: 10.1134/S0001433813090119
  • Bertino, Laurent; Samuelsen, Annette; Counillon, Francois; Simon, Ehouarn; Sakov, Pavel. 2012. Advanced data assimilation in oceanography. META. 5: 8-12.
  • Melsom, Arne; Counillon, Francois; Lacasce, Joseph Henry; Bertino, Laurent. 2012. Forecasting search areas using ensemble ocean circulation modeling. Ocean Dynamics. 62: 1245-1257. doi: 10.1007/s10236-012-0561-5
  • Sakov, Pavel; Counillon, Francois; Bertino, Laurent; Lisæter, Knut Arild; Oke, Peter R.; Korablev, Alexander. 2012. TOPAZ4: an ocean-sea ice data assimilation system for the North Atlantic and Arctic. Ocean Science. 8: 633-656. doi: 10.5194/os-8-633-2012
  • Srinivasan, A; Chassignet, EP; Bertino, Laurent; Brankart, JM; Brasseur, P; Chin, TM; Counillon, Francois; Cummings, JA; Mariano, AJ; Smedstad, OM; Thacker, WC. 2011. A comparison of sequential assimilation schemes for ocean prediction with the HYbrid Coordinate Ocean Model (HYCOM): Twin experiments with static forecast error covariances. Ocean Modelling. 37: 85-111. doi: 10.1016/j.ocemod.2011.01.006
  • Xie, Jiping; Counillon, Francois; Zhu, Jiang; Bertino, Laurent. 2011. An eddy resolving tidal-driven model of the South China Sea assimilating along-track SLA data using the EnOI. Ocean Science. 7: 609-627. doi: 10.5194/os-7-609-2011
  • Keghouche, Intissar; Counillon, Francois; Bertino, Laurent. 2010. Modeling dynamics and thermodynamics of icebergs in the Barents Sea from 1987 to 2005. Journal of Geophysical Research (JGR): Oceans. 115.
  • Counillon, Francois; Bertino, Laurent. 2009. Ensemble Optimal Interpolation: multivariate properties in the Gulf of Mexico. Tellus. Series A, Dynamic meteorology and oceanography. 61: 296-308. doi: 10.1111/j.1600-0870.2008.00383.x
  • Counillon, Francois; Bertino, Laurent. 2009. High-resolution ensemble forecasting for the Gulf of Mexico eddies and fronts. Ocean Dynamics. 59: 83-95. doi: 10.1007/s10236-008-0167-0
  • Counillon, Francois; Sakov, Pavel; Bertino, Laurent. 2009. Application of a hybrid EnKF-OI to ocean forecasting. Ocean Science. 5: 389-401.
Reports and theses
  • Billeau, Sebastien; Counillon, Francois; Keenlyside, Noel; Bertino, Laurent. 2016. IMPACT OF CHANGING THE ASSIMILATION CYCLE: CENTERED VS STAGGERED, SNAPSHOT VS MONTHLY AVERAGED. NERSC Technical Report. 400. Nansen Environmental and Remote Sensing Center, Bergen.
  • Renkl, Christoph; Counillon, Francois; Bertino, Laurent. 2014. Validation of the 20-year TOPAZ4 Reanalysis. NERSC Technical Report. 337. Nansen Environmental and Remote Sensing Center, Bergen. 67 pages.
  • Finck, Nicolas; Counillon, Francois; Bertino, Laurent; Bouillon, Sylvain; Rampal, Pierre. 2013. Validation of sea ice quantities of TOPAZ for the period 1990-2010. NERSC Technical Report no 332, Bergen. 30 pages.
  • Bertino, Laurent; Counillon, Francois; Sakov, Pavel; Keghouche, Intissar; Demchev, Denis; Volkov, Vladimir; Zakhvatkina, N; Aleksandrov, V; Wehde, Henning. 2012. Quality information document MyOcean V1 system WP05-ARC-MFC REANALYSIS. NERSC Technical Report. 336. Nansen Environmental and Remote Sensing Center.
  • Demchev, D; Alexandrov, Vitaly; Volkov, Vladimir; Wehde, Henning; Zakhvatkina, N.Y.; Bertino, Laurent; Counillon, Francois; Sakov, Pavel; Keghouche, Intissar. 2012. Quality Information Document MyOcean V1 System WP05– ARC-MFC Reanalysis. Nansen Senter for Miljø og Fjernmåling.
  • Simon, Ehouarn; Kvamsdal, Sturla F; Bojarova, J; Wackernagel, Hans; Lie, I.; Bertino, Laurent; Evensen, Geir; Sakov, Pavel; Counillon, Francois. 2011. Forecasting non-linear systems with the Ensemble Kalman Filter and related data assimilation methods (eVITA-EnKF). Nansen Senter for Miljø og Fjernmåling, Bergen. 19 pages.

More information in national current research information system (CRIStin)