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Variational calculus - minimization (presentation, 2002)

2002-06-01T14:58:00Z

Presentation of Yves Boutelout during the ALATNET training course on Numerical Analysis in Kranjska Gora, 29-31 May 2002. Schedule of the lectures : first: a "cultural" lecture with historical digression about variational calculus then an introduction to the optimal estimation theory, and to variational data assimilation in meteorology finally a lecture on the minimization (...) - Numerical analysis

Numerical filters (presentation, 2002)

2002-06-01T13:54:00Z

Presentation of Piet Termonia during the ALATNET training course on Numerical Analysis in Kranjska Gora, 29-31 May 2002. Generalities : why do we need filters in the first place ? set the stage : notions, spectral, types NWP: discretization and truncation increasing the efficiency discussion The specific LAM coupling problem seen as a filter introduction spurious reflections flow relaxation : Davies scheme implementation in (...) - Numerical analysis

Advection treatment (presentation, 2002)

2002-06-01T13:11:00Z

Presentation of Petra Smolikova during the ALATNET training course on Numerical Analysis in Kranjska Gora, 29-31 May 2002. Contents : Eurelian approach (CFL criterion) Lagrangian approach: semi-Lagrangian scheme algorithm two or three time levels ? how to find the origin points ? interpolations Comparison of Eulerian versus SL scheme Appendix 1 : Problem of Orographic resonance External resonance 1D linear shallow water system SL-SI treatment Decenterng of SI-scheme Tanguay-Ritchie (...) - Numerical analysis

Time discretization (presentation, 2002)

2002-06-01T13:00:00Z

Presentation of Petra Smolikova during the ALATNET training course on Numerical Analysis in Kranjska Gora, 29-31 May 2002. Contents : Explicit scheme Implicit scheme Decentering Semi-implicit scheme principle instability caused by non-linear terms P/C scheme The splitting method - Numerical analysis

Space discretization methods (presentation, 2002)

2002-06-01T12:53:00Z

Presentation of Petra Smolikova during the ALATNET training course on Numerical Analysis in Kranjska Gora, 29-31 May 2002. Contents : Galerkin methods Spectral methods on the line and on the sphere equivalent grids truncation calculation of RHS limited area modelling comparison with FDM Finite elements method calculation of first derivatives - Numerical analysis

Systems of equations (presentation, 2002)

2002-06-01T12:31:00Z

Presentation of Petra Smolikova during the ALATNET training course on Numerical Analysis in Kranjska Gora, 29-31 May 2002. Contents : The basic set of equations (fully compressible nonhydrostatic system) Basic atmospheric waves (sound waves ; internal gavity waves) Anelastic approximation Hydrostatic approximation Shallow water system (external gravity waves ; effect of the earth's (...) - Numerical analysis

Numerical analysis (presentation, 2002)

2002-06-01T12:10:00Z

Presentations of Joze Rakovec and Thomas Vrhovec during the ALATNET training course on Numerical Analysis in Kranjska Gora, 29-31 May 2002. Contents (Joze Rakovec): Introduction Historical aspects Numerical schemes Non-linearity Contents (Thomas Vrhovec): Grid point presentation of meteorological variables Spectral representation of meteorological variables Grid structure Boundary conditions Time (...) - Numerical analysis