9-12 March 2015
Data assimilation has become an important component of modelling for a growing number of applications in the geosciences and in engineering. This training course will provide an overview of the theory and practical methods of data assimilation. First the basic concepts from statistical estimation theory and nonlinear optimization will be given. The classical variational and Kalman filtering approaches to data assimilation will then be described. The lectures will also cover more specialized topics including covariance modelling and estimation, advanced minimization algorithms, preconditioning, and hybrid ensemble-variational methods. The lectures on the theory will be complemented by both practical exercises and presentations on specific applications at Cerfacs in the geosciences (oceanography, atmospheric chemistry and hydrology/hydraulics).
Detailed program:
Scientific contact: Selime GUROL and Anthony WEAVER
17-18 March 2015
There is a strong need in high resolution climate scenarios in France. Given that global climate models produce data at horizontal resolutions ranging from 100 to 200 km, their data output is not suitable for direct use in climate change impact studies at the regional and local scales. Hence, methodologies have been developed to downscale the output of large-scale climate models, such as dynamical or statistical methodologies. One such method has been developed at Cerfacs, the open-source software DSCLIM, a methodology that uses large-scale circulation information from global climate models, and links it to local-scale climate variables using a weather-typing based statistical model. Also, within the FP7 European project SPECS, an open-source R-based downscaling package is being developed. This training course aims to provide scientific and technical knowledge about downscaling methodologies, with hands-on t raining on DSCLIM output analysis.
Detailed program:
Scientific contact: Christian PAGE
20 March 2015
In this training course, the architectures of today's supercomputers are described. The processor evolution as well as the main types of architectures are then presented. Finally, the methods and tools for code optimization on these supercomputers are described.
Detailed program:
Scientific contact: Isabelle d'AST
26 March 2015
GIT is a distributed revision control and source code management system. It was initially designed for Linux kernel development and is particularly adapted to multi-site and multi-developer environments. In the morning, the basic knowledge of source code management are taught, presenting most GIT functionalities with many illustrations. A brief comparison with other management tools (Mercurial, CVS, SVN) is also proposed. In the afternoon, a hands-on session with detailed exercises is organized to illustrate the main concepts.
Detailed program:
Scientific contact: Gabriel STAFFELBACH
27 March 2015
Computational Fluid Dynamics in realistic geometrics requires complex meshes. This training course deals with the basics of unstructured and hybrid meshing using the CENTAUR software.
Detailed program:
Scientific contact: Gabriel STAFFELBACH
30 March-3 April 2015
This training session allows participants to understand the underlying basics of Large Eddy Simulation (LES): numerics, boundary conditions, LES closures and combustion modeling. The CFD code AVBP (new version V7.0) co-developed by Cerfacs and IFPEN is used for hands-on to compute both academic and realistic configurations of reacting compressible flows.
Detailed program:
Scientific contact: Eleonore RIBER
REGISTRATION
training@cerfacs.fr
+33 (0)5 61 19 30 05
+33 (0)5 61 19 30 30
http://www.cerfacs.fr/training
CERFACS
42, avenue G. Coriolis
31057 Toulouse Cédex 1
FRANCE |