Contents of this training course on Dynamics : THE SPECTRAL METHOD GENERALITIES MATHEMATICAL BASIS COMPARED PROS AND CONS WITH FINITE DIFFERENCES GLOBAL UNIFORM APPLICATION GLOBAL VARIABLE RESOLUTION APPLICATION LIMITED AREA MODELLING (LAM) APPLICATIONS LINK WITH TIME-STEPPING SCHEMES LINK (...)
Sommaire OVERLOOK INPUT/OUTPUT METHOD DESCRIPTION OF INPUT NAMELISTS EXAMPLE
As a complement to CHAGAL, ASCS is a program to make vertical cross sections of
fields from ALADIN or even ARPEGE.
Those who have been to the COMPARE/PYREX workshop must have seen many (...)
FRODO program was developped by Jean-Daniel Gril. It reads files in FA format and extracts header datas from them, with ASCII output format. These datas contain geographicals parameters, dates, levels ..., and the list of fields inside the file.
Link to FRODO (...)
CHAGAL is a versatile graphical program originally designed for plotting the contour maps and wind fields based on results of operational implementation of ALADIN model. Anyhow it may be used to satisfy any need of a graphical representation of a model output provided the user preparers his own (...)
This procedure "surgery" is determining the number of longitudes for each latitude of a gaussian reduced grid, defined by : the number of latitudes NDGL, the maximum number of longitudes NDLON, the truncation NSMAX.
The job is split in 2 parts : first part is the computation of the Legendre (...)
This procedure defines the two corners (SW and NE) of a subgrid Aladin, given : the native grid parameters, the approximative SW subgrid corner (in degrees) : ZLONU & ZLATU the number of points of the subgrid (for C+I) : IDLUXU & IDGUXU
The files location is on andante: (...)
This is documentation was written by Filip Vana in February 2005 about the new option for the semi-Lagrangian interpolation:
4-points spline. It is supposed to be more precise and accurate than the current
default interpolation requiring almost the same CPU consumption. The only problem
This 4D-Var documentation was written in July 2002 by Gérald Desroziers et Pascale Riber. It is in French. Guide d’utilisation Installation du script Définition et lancement d’une expérience Formalisme général Assimilation 4D-Var Assimilation 3D-Var FGAT Structure du script Arbre des appels (...)
A complete set of the simplified physical parametrizations has been developed for incremental 4D-Var assimilation system. It contains a simplified computation of radiative fluxes, vertical turbulent diffusion, orographic gravity waves, deep convection and stratiform precipitation fluxes. The (...)