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Numerical filters (presentation, 2002)

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

The specific LAM coupling problem seen as a filter

  • introduction
  • spurious reflections
  • flow relaxation : Davies scheme
  • implementation in ALADIN
  • discussion

titre documents joints

LAM coupling as a filter

4 November 2005
info document : PostScript
722.3 kb

Generalities

4 November 2005
info document : PostScript
469 kb

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