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MITRAILLETTE : to validate ALADIN configurations (2004) (Coding, phasing, porting)

Tuesday 19 December 2006
Mitraillette is a script designed to validate ALADIN configurations and is particularly useful to test a new cycle. This script uses a chain of jobs: when a job is finished it launches the following job, in a predetermined order. The first version was developped by Vanda Sousa da Costa in (...)

Proposal for the implementation of LESIDG in ALADIN (Oct 06) (Dynamics)

Tuesday 17 October 2006
In this memo we (Pierre Bénard and Karim Yessad) choose, among several possible methods, one practical method for implementing in Aladin the LESIDG functionality, that is, the possibility of using a SI scheme with a non-uniform version of the linearized map-factor. The algorithms for the chosen (...)

AROME diagnostics (June 2006) (Diagnostics)

Friday 9 June 2006
This document written by Gwenaëlle Hello presents the state of the art of the development of the Arome Diagnostics in June 2006.

General introduction and description of the SLHD : Semi-Lagrangian Horizontal Diffusion (March 2006) (Dynamics)

Monday 29 May 2006
This general introduction and description of the SLHD was written by Filip Vana in March 2006. It contains also simple user’s guide. For advanced readers there is a tutorial for an individual scheme retuning.

Changing in spectral horizontal diffusion tuning from CY29t1 (Feb 2005) (Dynamics)

Monday 22 May 2006
This article by Filip Vana (written in February 2005) explains the new fashion of the spectral horizontal diffusion tuning. It has been implemented to the model cycle CY29T1. Since that time no HDIR[x] coefficients are accepted by code. There is also no need any longer to recompute horizontal (...)

ARPEGE/ALADIN files : documentation of physic rows (in French, April 2006) (Files and data)

Tuesday 2 May 2006
This documentation describes the scientific contents of the rows written in operational files by ARPEGE/ALADIN models : definition, unit, calculation, etc ... cloudiness precipitations diagnostics index of variables ... It was written in June 2005 by Jean-Marcel Piriou. It is in French. La (...)

Variational diagnotic analysis (2006) (Variational)

Thursday 9 March 2006 by Ludovic Auger
A variational diagnostic analysis tool has been developed for diagnostic purposes. This tool will be the successor of "diagpack" for nowcasting issues. It is inspired by the concept of diagnostic analysis which has been the central concept for the development of diagpack. From the technical (...)

New geometry routines for ALADIN (January 2006) (Projections, grids and model resolutions)

Thursday 19 January 2006 by Jean-Daniel GRIL
This document explains the new projection routines with an emphasis on bugfixes at the level of Cycle 29.t2 to 30.t1. It explains : the new "cadre" for ALADIN files, use of NCADFORM key, in depth description of parameter setup and checks in sufpg1, ... Both English and French documentions are (...)

Computation of spectral orography in configuration 923 (Dec 2005) (Climatologic and constant files)

Friday 9 December 2005 by Patricia
Documentation written by Dominique Giard in December 2005. Contents : NAMCLA : control the computation of orography Formulation of the cost functions to be minimalized Case of linear-spectral truncation

Extension of the equations for a moist precipitating atmosphere to mass-based coordinates in various contexts (2005) (Dynamics)

Monday 19 September 2005
This is a provisionnal version on 19 September 2005 : please send any comments to Pierre Bénard (you can use the forum linked to this article). This paper derives the equations for a moist precipitating atmosphere in mass coordinate. The starting point is the paper by Sylvie Malardel on the (...)

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