Basics about ARPEGE/IFS, ALADIN and AROME in the cycle 39 of ARPEGE/IFS (November 2012)

 Abstract:

This documentation has the aim to give a general overview of the ARPEGE/IFS, ALADIN and AROME models, for beginners or for someone which know some specific points but has no general overview of the whole models. It can be seen as a synthetic sum-up of some other documentations, and it contains also a list of references as complete as possible which form the set of documentations.

 Résumé:

Cette documentation a pour but de donner un aperçu général de ce que sont les modèles ARPEGE/IFS, ALADIN et AROME et de leur contenu, sans trop entrer dans les détails, et du même coup va servir de documentation d’introduction à diverses documentations beaucoup plus détaillées et beaucoup plus ciblées aussi qui existent déjà.

 Contents:

 Introduction and general purpose of this documentation.
 A brief description of ARPEGE, ALADIN, AROME.
 The list of available configurations and some basics about the architecture of the code.
 The different projects.
 The sequences in a forecast suite.
 The forecast: configurations 1, 201, 202.
 Basics about the physics.
 The tangent linear (TL) and adjoint (AD) codes.
 The diagnostics.
 The screening.
 The initialization.
 Algorithms of assimilation.
 Configuration 801.
 Singular vectors calculation and configuration 601.
 Configuration 923.
 The other C9xx configurations.
 Minimizations.
 Observation treatment before assimilation.
 IO and the different types of files used.
 Distributed memory and OpenMP aspects.
 An example of operational namelist for ARPEGE.
 Launching experiments for ARPEGE and ALADIN.
 References and documentation.