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Sphere to sphere transforms in spectral space in the cycle 46 of ARPEGE/IFS: configuration 911.

Tuesday 10 April 2018 by Karim Yessad
  Table of contents  

 Abstract:

This documentation describes configuration formerly numbered 911 which performs dilatation/contraction matrices: these matrices allow to do spectral transformation between a stretched spectral space and between its unstretched counterpart. Some algorithmic aspects and technical aspects are described. Some namelists are provided to use the configuration 911, which is now externalised in the project UTILITIES. Such transformations can be used in spherical geometry only, and for METEO-FRANCE purpose only (not at ECMWF).


 RESUME:

CETTE DOCUMENTATION DECRIT LA CONFIGURATION ANCIENNEMENT NUMEROTEE 911 QUI FABRIQUE DES MATRICES DE DILATATION/ROTATION. CES MATRICES PERMETTENT DE FAIRE DES TRANSFORMATIONS SPECTRALES ENTRE UN ESPACE SPECTRAL ETIRE ET SA CONTREPARTIE NON ETIREE. ON DECRIT QUELQUES ASPECTS ALGORITHMIQUES ET TECHNIQUES. ON FOURNIT UN EXEMPLE DE NAMELIST POUR UTILISER CETTE CONFIGURATION, QUI EST MAINTENANT EXTERNALISEE DANS LA LIBRAIRIE ``UTILITIES". CETTE TRANSFORMATION N’EST UTILISEE QU’A METEO-FRANCE.


 Contents:

  • 1/ Introduction.
  • 2/ Dilatation and contraction matrices.
  • 3/ References.

titre documents joints

Version cycle 46

10 April 2018
info document : PDF
251 kb

Version cycle 45

29 June 2017
info document : PDF
251 kb

Version cycle 44

6 March 2017
info document : PDF
250.9 kb

Version cycle 43

25 February 2016
info document : PDF
252.3 kb

Version cycle 42

7 July 2015
info document : PDF
251.8 kb

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