Annalisa Griffa

Dr. Griffa's research is in the study of the general circulation in relationship to climate problems, dispersion study and analysis of Lagrangian data. Her present focus is on the study of transport processes in the ocean using Lagrangian techniques, develpement of asssimilation techniques for ocean model prediction, and modelling of coastal processes.

Books & monographs:

Lagrangian Analysis and Predictability of Coastal and Ocean Dynamics, Eds A. Griffa, A.D. Kirwan, A.J. Mariano, T.M. Ozgokmen and T. Rossby, Cambridge University Press, 500 pg.

Refereed Articles

Griffa, A., R. Lumpkin, and M. Veneziani , 2008. Cyclonic and anticyclonic motion in the upper ocean, Geophys. Res. Lett., 35, L01608, doi:10.1029/2007GL032100.

Taillandier, A. Griffa, P.M. Poulain, R. Signell, J. Chiggiato, S. Carniel, 2008. Variational analysis of drifter positions and model outputs for the reconstruction of surface currents in the Central Adriatic during fall 2002. J. Geophys. Res, 113, C04004, doi:10.1029/2007JC004148

Magaldi, M., T.M. Ozgokmen, A. Griffa, E. Chassignet, M. Iskandarani and H. Peters, 2008. Turbulent flow regimes behind a coastal cape in a stratified and rotating environment. Ocean Modell, doi:10.1016/j.ocemod.2008.06.006.

Molcard A., P.M. Poulain, P. Forget, A. Griffa, Y. Barbin, J. Gaggelli, J.C. De Maistre, M. Rixen. 2008. Comparison between VHF radar observations and data from drifter clusters in the Gulf of La Spezia (Mediterranean Sea). J. Mar. Sys, in press.

Veneziani M., A. Griffa and P.M. Poulain, 2007. Historical drifter dataand statistical prediction of particle motion: a case study in the Adriatic Sea, J. Atmos. Ocean Tech, 24, 235-254

Haza A.C., L.I. Piterbarg, P. Martin, T.M. Ozgokmen and A. Griffa, 2007. Lagrangian Subgridscale Model for Particle Transport Improvement and Application in the Adriatic Sea Using the Navy Coastal Ocean Model, J. Oc. Modelling, 17, 68-91.

Haza, A., A. Griffa, P. Martin, A. Molcard, T.M. Ozgokmen, A.C. Poje, R. Barbanti, J. Book, P.M. Poulain, M. Rixen, and P. Zanasca, 2007: Model-based directed drifter launches in the Adriatic Sea: Results from the DART experiment. Geophys. Res. Letters, 34, L10605, doi:10.1029/2007GL029634.

Piterbarg, L.I., T.M. Özgökmen, A. Griffa, and A.J. Mariano, 2007: Predictability of Lagrangian motion in the upper ocean. In: Lagrangian Analysis and Prediction of Coastal and Ocean Dynamics, Eds: A. Griffa, A.D. Kirwan, A.J. Mariano, T.M. Özgökmen and T. Rossby , Cambridge University Press, 500 pg.

Molcard, A,T.M. . Özgökmen , A. Griffa, L. Piterbarg, T.M. Chin, 2007: Lagrangian data assimilation in ocean general circulation models. In: Lagrangian Analysis Predictability of Coastal and Ocean Dynamics, Eds A. Griffa, A.D. Kirwan,, A.J. Mariano, T.M. Özgökmen and T. Rossby , Cambridge University Press, 500 pg.

Poulain, P.-M., R. Barbanti, J. Font, A. Cruzado, C. Millot, I. Gertman, A. Griffa, A. Molcard, V. Rupolo, S. Le Bras, and L. Petit de la Villeon, 2007 : MedArgo: a drifting profiler program in the Mediterranean Sea. Ocean Sci., 3, 379-395.

Taillandier, V., A Griffa and A. Molcard, 2006. A variational approach for the reconstruction of regional scale Eulerian velocity fields from Lagrangian data. Ocean Modelling,  13,  1-24

Taillandier V., A. Griffa, P.M. Poulain, K. Beranger,  2006. Assimilation of ARGO float positions in the North Western Mediterranean Sea and impact on ocean circulation simulations, Geophys. Res. Lett., 33 , L11604, doi:10.1029/2005GL025552

Doglioli A.M., M. Veneziani, B. Blanke, S. Speich and A.Griffa., 2006. Lagrangian analysis of Indian-Atlantic interocean exchange in a regional model. Geophys. Res. Lett, L14611, 33, doi:10.1029/2006GL02649

Veneziani M., A. Griffa, A. Reynolds, Z. Garraffo and E. Chassignet, 2005. Parameterizatin of Lagrangian spin  statistics and particle dispersion in the presence of coherent vortices.  J.  Mar. Res.  63 ,  1057-1083a>

Veneziani M., A. Griffa, Z. Garraffo and E. Chassignet, 2005. Lagrangian spin parameter and coherent structures from trajectories released in a high-resolution ocean model. J Mar. Res., 63, 753-788

Molcard A., A. Griffa, T.T. Ozgokmen, 2005 Lagrangian data assimilation in multi-layer primitive equation. J.Atmos Ocean Tech, 22, No. 1., 70-83, 2005.

Veneziani M., A. Griffa, A.M. Reynolds and A.J. Mariano, 2004: Oceanic turbulence and stochastic models from subsurface Lagrangian data for the North-West Atlantic Ocean. J. Phys. Oceanogr., 14, 1884-1906

Maurizi A., A. Griffa, P.M. Poulain and F. Tampieri, 2004: Lagrangian turbulence in the Adriatic Sea as computed from drifter data: effects of inhomogeneity and nonstationarity. J. Geophys. Res., {109, C04010, doi:10.1029/2003JC002119

Griffa A., L.I. Piterbarg and T.M. Ozgokmen, 2004. Predictability of Lagrangian particle trajectories: effects of uncertainty in the underlying Eulerian flow, J. Mar. Res., 62, 1-35.

Doglioli A.M., A. Griffa, M.G.. Magaldi, 2004. Numerical study of a coastal current on a steep slope in presence of a cape: the case of the Promontorio of Portofino. J. Geophys. Res., 109, c12033, doi:10.1029/2004JC002422.

Ozgokmen T.M., A.Molcard, T.M.Chin, L.I.Piterbarg, A.Griffa, 2003: Assimilation of drifter positions in primitive equation models of midlatitude ocean circulation. J. Geophys. Res,  108 (C7), 3238, doi:10.1029/2002JC001719.

Aliani S., A.Griffa, A.Molcard, 2003: Floating debris in the Ligurian Sea, North-Western Mediterranean.   Marine Pollution Bulletin, 46, 1142-1149.

Molcard, A., L.I. Piterbarg, A. Griffa, T.M. Ozgokmen, A.J. Mariano, 2003:  Assimilation of drifter positions for the reconstruction of the Eulerian circulation field.  J. Geophyis. Res., 108, C3, 3056.

Molcard, A., L. Gervasio, A. Griffa, G. Gasparini, L. Mortier, and T.M. Ozgokmen, 2002: Numerical investigation of the Sicily Channel dynamics: Density currents and water mass advection.  J. Mar. Sys., 36, 219-238.

Mariano, A.J., A. Griffa, T.M. Ozgokmen, and E. Zambianchi, 2002:  Lagrangian analysis and predictability of coastal ocean dynamics 2000.  J. Atmos. Ocean. Tech., 19, 1114-1126.

Bauer, S., M.S. Swemson, and A. Griffa, 2002: Eddy-mean flow decomposition and eddy diffusivity estimates in the tropical Pacific Ocean.  2:  Results.  J. Geophys. Res., 107, C10, 3154-3171.

Molcard A., A. Griffa, L. Gervasio, 2002:  Numerical investigation on the effects of direct wind forcing on the surface circulation in the Sicily channel:  Eulerian and Lagrangian statistics.  Ann. Isti. Nav., LXVI, 21-48.

Garraffo, Z.D., A.J. Mariano, A. Griffa, C. Veneziani, and E.P. Chassignet, 2001:  Lagrangian data in a high-resolution numerical simulation of the North Atlantic, I.  Comparison with in situ drifter data.  J. Marine Systems, 29(1-4),  157-176.

Garraffo, Z.D., A. Griffa, A.J. Mariano, and E.P. Chassignet, 2001:  Lagrangian data in a high-resolution numerical simulation of the North Atlantic, II.  On the pseudo-Eulerian averaging of Lagrangian data.  J. Marine Systems, 29(1-4), 177-200.

Castellari, S., A. Griffa, T.M. Ozgokmen, and P.M. Poulain, 2001:  Prediction of particle trajectories in the Adriatic Sea using Lagrangian data assimilation.  J. Marine Systems, 29(1-4), 33-50.

Bellucci, A., G. Buffoni, A. Griffa, and E. Zambianchi, 2001:  Estimation of residence times in semi-enclosed basins with steady flows.  Dyn. Atmos. Ocean., 33, 201-218.

Buffoni, G., A. Cappelletti, and A. Griffa, 2001:  Numerical integration of the thermohaline circulation in a semi-unclosed basin.  The case of the Adriatic Sea.  In Numerical modelling in continuum mechanics.  Proceedings of the IV Summer Conference, Prague, 2000.  Feistauner Ed.

Falco P., A. Griffa, P.M. Poulain, and E. Zambianchi, 2000:  Transport properties in the Adriatic Sea as deduced from drifter data.  J. Phys. Ocean., 30 (8), 2055-2071.

Ozgokmen, T.M., A. Griffa, L.I. Piterbarg, and A.J. Mariano, 2000:  On the predictability of Lagrangian trajectories in the ocean.  J. Atmos. Ocean. Tech., 17/3, 366-383.