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GMKPACK documentation or Getting started with gmkpack : environment to compile and make binaries (Coding, phasing, porting)

Wednesday 18 June 2014
This document has been written in order to help people to use the procedure gmkpack with a manual and a tutorial. In June 2014, It is the version 6.6.0. gmkpack is a procedure that has been written by GCO and Ryad El Khatib in order to create an environment to compile and make binaries from (...)

Modification of ARPEGE necessary to include the EGA-SA, "case (ii)" (Dynamics)

Tuesday 27 May 2014 by Pierre Bénard

This memo is a specific application of "Continuity equation for non-spherical geometries..." for the case of a spherical planet with meridionally varying gravity but shallow-atmosphere approximation.
This specific case may be implemented with very minimal changes to the existing code, while allowing to assess the magnitude of gravity errors of the spherical approximation.

Continuity equation for non-spherical geometries in mass-coordinates (Dynamics)

Tuesday 27 May 2014 by Pierre Bénard

This memo describes the transformation of physically-consistent atmospheric systems in non-spherical geometries from geopotential-based to mass-based coordinates. Only the continuity equation is examined here.

MF BULL new computer : use and newcomer’ s guide (Systems and operations)

Friday 16 May 2014 by Patricia
The documentation for getting started and using MF BULL new computer are on-line on the Partners’ part of the aladin website (information for Partners only, you should get logged in to see the article).

Configuration 801 in the cycle 40 of ARPEGE/IFS (July 2013) (Configurations)

Monday 8 July 2013 by Karim Yessad
Sommaire Abstract Résumé Contents This documentation describes the algorithmic and technical aspects of the configuration 801 of ARPEGE/IFS, which allows in particular to do sensitivity studies. An example of namelist is provided. Cette documentation décrit (...)

ARPEGE/ALADIN/AROME IO : technical aspects (cycle 39t1, May 2013) (Files and data)

Thursday 23 May 2013 by Patricia
This document by Philippe Marguinaud describes the IO subsystem of ARPEGE/ALADIN/AROME for cycle 39t1. Only historic data IO is covered here, with a few words on Fullpos IO. Contents : Organization of the code Field descriptors IO buffers Extracting/loading fields MFIOOPTS Code cleaning (...)

OOPS C++ Coding Guidelines (2013) (Coding, phasing, porting)

Wednesday 6 March 2013 by Patricia
This document " OOPS C++ Coding Guidelines was elaborated by Yannick Tremolet and the team of the OOPS technical review. The following guidelines are based on a draft document from Baudouin Raoult, and were updated following the OOPS code review 11-15 July (...)

Non-Hydrostatic Model versioned documentations (2013) (Dynamics)

Thursday 31 January 2013
In this page you will find the official scientific documentation of the Aladin NH model (authors : Pierre Bénard and Jan Masek). The old versions of the documentation are archived (version 1 1995-2003, version 2.0.0 of December 2003, version 2.1 of December 2004, version 3.0 of July 2011), and (...)

ODB documentation (ODB : Observational DataBase)

Thursday 24 January 2013
An internal (IFS/ARPEGE/LAM) documentation of ODB has been written by the ECMWF (contact at ECMWF : Anne Fouilloux) and is available on the "partners part" of the aladin website (

Use of the 2D structure of GOM-arrays for the assimilation of radar reflectivities in the AROME model at Météo-France, April 2012 (Variational)

Thursday 13 December 2012
Use of the 2D structure of GOM-arrays for the assimilation of radar reflectivities in the AROME model at Météo-France by Eric Wattrelot : A 1D method to get relative humidity retrievals from radar reflectivities : why and how ? Dataflow of the 2D-GOM and specific points linked to radar (...)

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