Séminaire AVENUE Projet au Cerfacs

20-21 Juin 2017

 

Programme

avec les Présentations 

 

 

Mardi 20 Juin

09:00 – 09:40: Inscription & Café

09:40 – 10:30: Andrew Lorenc (Met-Office) “Improving the ensemble covariances used in the Met Office global hybrid-4DVar”
10:30 – 11:20: Jean-François Caron (Environment Canada) “Scale-Dependent Localization in Ensemble-Variational Data Assimilation: Application in Global and Convective-Scale NWP systems”
11:20 – 11:50: Anthony Weaver (CERFACS) “Ensemble-variational assimilation with NEMOVAR: Part 1: design aspects and illustrations”
11:50 – 12:20: Marçin Chrust (ECMWF) “Ensemble-variational assimilation with NEMOVAR: Part 2: experiments with the ECMWF system”

12:20 – 14:00: Repas

14:00 – 14:50: Alberto Carrassi (NERSC) “Dynamics‐based reduction of data assimilation for chaotic models”

15:40 – 16:10: Pause café

16:10 – 17:00: David Titley-Peloquin (McGill University) “Towards the estimation of optimal covariance matrices in multi-ensemble data assimilation”
17:00 – 17:30: Francois Mercier (Météo-France) “Block Krylov methods for ensemble variational data assimilation in weather prediction systems”
17:30 – 18:00: Alina Barbu (CNES-GET) “Efficient QR Sequential Least Square algorithm for high frequency GNSS Precise Point Positioning seismic application”

 

Mercredi 21 Juin

 

09:00 – 09:50: Gerald Désroziers (Météo-France) “Development of 4DEnVar at Météo-France”
09:50 – 10:40: Patrick Laloyaux (ECMWF) “The ECMWF weak constraint 4D-Var formulation”
10:40 – 11:20: Emanuele Emili (CERFACS) “Accounting for model error in air quality forecasts: an application of 4DEnVar to the assimilation of atmospheric composition using QG-Chem”

 

11:20 – 12:30: Pause café et discussions