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Short introduction to OpenMP (presentation, 2002) (Technical and coding aspects)

November 2002
Presentation of Jure Jerman during the ALADIN maintenance and phasing training course in Budapest on Nov 25-29, 2002. It is an introduction to one of the two kinds of parallelisation used in ALADIN : OpenMP (the one one being MPI) : Presentation and Efficiency Nesting of parallel regions (...)


Data flows in the direct model (presentation, 2002) (Technical and coding aspects)

November 2002
Presentation of Ryad El Khatib during the ALADIN maintenance and phasing training course in Budapest on Nov 25-29, 2002. Contents : Shape od spectral arrays Split of spectral arrays Spectral coefficient ordering Gridpoint buffers Gridpoint blocks ordering Gridpoint blocks structure Gridpoint (...)


Introduction to the architecture of the code ARPEGE/ALADIN in cycle 25T1 (presentation, 2002) (Technical and coding aspects)

November 2002
Presentation of Ryad El Khatib during the ALADIN maintenance and phasing training course in Budapest on Nov 25-29, 2002. Contents : Main program Control level 0 Setup Setup organization Framework of a setup subroutine Configurations of work Control level Direct model integration STEPO SCAN2H (...)


New geometry setup for Aladin and Fullpos (presentation, 2002) (Projections, grids and model resolutions)

November 2002
Presentation of Martin Janousek during the ALADIN maintenance and phasing training course in Budapest on Nov 25-29, 2002. Contents : Geometry setup EGGX definition New geometry software New projection definition New domain definition EGGPACK Implementation Namelists changes New file CADRE (...)


Using ODB in ALADIN (documentation and presentation, 2002) (ODB : Observational DataBase)

November 2002
This document was written by Sandar Kertez in November 2002 and presented during the 1st ALADIN maintenance and phasing workshop hold in Budapest on November 25-29, 2002. Main topics : Basic ODB structures Data retrieval OBB in ARPEGE/IFS ODB related programs Working with (...)


Variational calculus - minimization (presentation, 2002) (Numerical analysis)

June 2002
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 (...)


Numerical filters (presentation, 2002) (Numerical analysis)

June 2002
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 (...)


Advection treatment (presentation, 2002) (Numerical analysis)

June 2002
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 ? (...)


Time discretization (presentation, 2002) (Numerical analysis)

June 2002
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 (...)


Space discretization methods (presentation, 2002) (Numerical analysis)

June 2002
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 (...)


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