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Advection treatment (presentation, 2002)

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 ?
    • 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 method
    • Spatial averaging of higher order
  • Internal resonance
    • SL spatial averaging of higher order

Appendix 2 : Links between different choices in the dynamics


titre documents joints

Choices in the dynamics

4 November 2005
info document : PostScript
1.4 Mb

Orographic resonance

4 November 2005
info document : GZ
2.5 Mb

Advection treatment

4 November 2005
info document : GZ
3 Mb

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