Dr. Laurent Bertino (05/06/1975, French) is research director at the Mohn-Sverdrup Center for Global Ocean Studies and Operational Oceanography (MSC). The MSC presently has a staff of 18, lead by Dr. Johnny A. Johannessen. Among them, 11 are working in the Modelling and Data Assimilation group lead by L. Bertino: 3 scientists, 4 post-docs, 4 PhD students, 2 professors II, 1 programmer. Doctor in geostatistics from the Ecole des Mines de Paris, France, he has applied different sequential data assimilation methods to the hydrodynamics of the Odra Lagoon and reformulated them in a geostatistical framework, opening for new theoretical developments based on the concepts of geostatistics. He has applied the Ensemble Kalman Filter (EnKF) to the primitive equations Ocean General Circulation Model HYCOM and is responsible for the development and operations of the TOPAZ monitoring system since January 2003, TOPAZ being the Norwegian contribution to the international initiative GODAE/OceanView (Global Ocean Data Assimilation Experiment) and the European MyOcean system. He is co-leading the multidisciplinary project “forecasting non-linear systems with the Ensemble Kalman Filter and related data assimilation methods” of the Research Council of Norway eVITA programme together with Dr. Geir Evensen for the period 2007-2012 (budget 20 MNOK, 2.5 MEUR). He has coordinated the second half of the TOPAZ project (EC-FP5, 2001-2003) and has managed NERSC activities in the EC integrated project MERSEA (2004-2008) and presently leads the work-package 5 (Arctic Marine Forecasting Center) of the MyOcean FP7 project. He has managed projects oriented to the oil and gas industry with two 20-years hindcasts of ocean currents in the South China Sea and a hindcast of ocean currents induced by the hurricane Ivan in the Gulf of Mexico. He has supervised the PhD of François Counillon and is currently co-supervising four PhD students: Ms. Intissar Keghouche “Forecasting the drift of icebergs caused by currents in the Arctic Ocean”, Ms. Swapna George “Mesoscale activity in the Northern Indian Ocean”, M. Bjørn Backeberg “Assessment of mesoscale activity in the greater Agulhas Current region” and M. Gisle Nondal “Study of the South Atlantic Mode Water in hybrid coordinate ocean model”. He is also regularly invited at the Institute of Atmospheric Physics of the Chinese Academy of Science in Beijing, P.R. China, to assist students working with ocean modeling and data assimilation and is a member of the board of the Nansen Environmental Research Center of India (NERCI).
Links:
The MSC at NERSC http://msc.nersc.no
The TOPAZ monitoring and forecasting system http://topaz.nersc.no
The Ensemble Kalman Filter http://enkf.nersc.no
Sakov, P., L. Bertino (2009) Relation between two common localization methods for the EnKF. Computational Geosciences. Submitted.
Vionnet, V., L. Bertino, K. A. Lisæter, G. L. Liston (2009) Including Snow Cover Heterogeneities in a Sea Ice Model, J. of Climate, Submitted.
Sakov P., G. Evensen and L. Bertino (2009) Asynchronous data assimilation with the EnKF. Tellus A. In press.
Wan L.Y., J. Zhu, L. Bertino (2009). Assimilating altimetry data into a HYCOM model of the Pacific: Ensemble Optimal interpolation versus Ensemble Kalman Filter. J. Atm. Oc. Tech. In press. DOI: 10.1175/2009JTECHO626.1.
Samuelsen A., L. Bertino, and C. Hansen (2009) Impact of data assimilation of physical variables on the spring bloom from TOPAZ operational runs in the North Atlantic Ocean Sci., 5, 635-647.
Simon E. and L. Bertino (2009) Application of the Gaussian anamorphosis to assimilation in a 3-D coupled physical-ecosystem model of the North Atlantic with the EnKF: a twin experiment Ocean Sci., 5, 495-510.
Keghouche I., L. Bertino and K. A. Lisæter (2009) Parameterization of an iceberg drift model in the Barents Sea. J. Atm. Oc. Tech. 26(10), 2216-2227.
Cummings J., Bertino L., Brasseur P., Fukumori I., Kamachi M., Martin M.J., Mogensen K., Oke P., Testut C. E., Verron J. and Weaver A., (2009) Ocean data assimilation systems for Godae, Oceanography. GODAE special issue feature, 22(3), 96-109.
Dombrowsky, L. Bertino, G.B. Brassington, E.P. Chassignet, F. Davidson, H.E. Hurlburt, M. Kamachi, T. Lee, M.J. Martin, S. Mei, and M. Tonani (2009). GODAE systems in operations. Oceanography. GODAE special issue feature, 22(3), 80-95.
Hernandez F., Bertino L., Brassington G., Chassignet E., Cummings J., Davidson F., Drévillon M., Garric G., Kamachi M., Lellouche J.-M., Mahdon R., Martin M. J., Ratsimandresy A. and Regnier C., (2009) Validation and intercomparison studies within GODAE, Oceanography, GODAE Special issue feature, 22(3), 128-143.
Backeberg B. C., L. Bertino, and J. A. Johannessen (2009) Evaluating two numerical advection schemes in HYCOM for eddy-resolving modelling of the Agulhas Current Ocean Sci., 5(2), 173-190.
Wan L.Y., J. Zhu, H. Wang, C. X. Yan and L. Bertino (2009). A “Dressed” Ensemble Kalman Filter using the HYbrid Coordinate Ocean Model in the Pacific. Adv. Atmos. Sci., 26(5), pp. 1042-1052.
Counillon F., P. Sakov, and L. Bertino (2009) Application of a hybrid EnKF-OI to ocean forecasting Ocean Sci., 5, 389-401.
Counillon F., L. Bertino (2009) Ensemble Optimal Interpolation: multivariate properties in the Gulf of Mexico. Tellus A. 61(2), 296-308.
Counillon F., L. Bertino (2009) High-resolution ensemble forecasting for the Gulf of Mexico eddies and fronts. Oc. Dyn. 59(1), 83-95.
Bertino L., K. A. Lisæter (2008) The TOPAZ monitoring and prediction system. Journal of operational oceanography. 1(2) 15-19.
Backeberg B. C., J. A. Johannessen, L. Bertino, C. J. Reason (2008) The greater Agulhas Current system: An integrated study of its mesoscale variability. Journal of operational oceanography. 1(1) 29-44.
Wan L.Y., J. Zhu, L. Bertino, H. Wang (2008). Initial ensemble generation and validation for ocean data assimilation using HYCOM in the Pacific. Oc. Dyn. 58, 81-99.
O. Leeuwenburgh, G. Evensen, L. Bertino (2005) The impact of ensemble filter definition on the assimilation of temperature profiles in the Tropical Pacific. Q. J. R. Meteorol. Soc., 131, 3291-3300. doi: 10.1256/qj.05.90
P. Brasseur, P. Bahurel, L. Bertino, F. Birol, J.-M. Brankart, N. Ferry, S. Losa, E. Remy, J. Schroeter, S. Skachko, C.-E. Testut, B. Tranchant, J. Verron, P.-J. van Leeuwen. (2005) Data assimilation in the MERSEA and MERCATOR operational ocean forecasting systems. Q. J. R. Meteorol. Soc., 131, 3561-3582. doi: 10.1256/qj.05.142
Bertino L., G. Evensen and H. Wackernagel. (2003) Sequential data assimilation techniques in oceanography. International Statistical Review, 71(2), pp. 223-241.
Bertino, L., K. A. Lisæter, F. Counillon, N. Winther, I. Kegouche, S. Parouty (2005) The TOPAZ monitoring and prediction system for the Atlantic and Arctic, in European Operational Oceanography: Present and future. Proceedings of the Fourth International Conference on EuroGOOS, 6-9 June 2005, Brest, edited by H. Dahlin, N.C. Flemming, P. Marchand, S.E. Pettersson, pp. 456-459. Office for Publications of the European Communities, Luxembourg.
Bertino, L., and G. Evensen, (2003) The DIADEM/TOPAZ monitoring and prediction system for the North Atlantic, in Building the European Capacity in Operational Oceanography, Proceedings of the Third International Conference on EuroGOOS, 3-6 December 2002, Athens, Greece, edited by H. Dahlin, N. Flemming, K. Nittis, and S. Petersson, vol. 69, pp. 251-260, Elsevier Oceanography Series.
Bertino, L. and H. Wackernagel, (2004) Prévoir l’état de l’océan, La Recherche, 371, pp. 98-99. (in French)
Bertino, L., K.A. Lisæter, H. Sagen, F. Counillon, N. Winther, M. Stette, L. J. Natvik, G. Evensen, Y. Morel, J.M. Brankart, F. Birol, P. Brasseur, J. Verron, M. Schartau, J. Schroeter, I. Andreu Burillo, E. Dombrowsky, G. Larnicol, P. Schaeffer, and G. Weller, TOPAZ final report, Tech. Rep. 251, Nansen Centre, Bergen, Norway, 2004.
Bertino L., N. G. Winther, J. A. Johannessen, Real-time Marine Monitoring Systems: Forecasting ocean and regional sea-state, Hydro International, June 2004, pp. 40-43.