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Spectral transforms in the cycle 46t1r1 of ARPEGE/IFS. (Dynamics)

Tuesday 12 February 2019 by Karim Yessad
Sommaire Abstract RESUME Contents Appendices ARPEGE/IFS, ALADIN and AROME are spectral models, so this documentation has for purpose to describe the spectral transforms done. The present note has for aim to give a brief summary of the spectral method (how to (...)


Basics about ARPEGE/IFS, ALADIN and AROME in the cycle 46t1r1 of ARPEGE/IFS. (Configurations)

Tuesday 12 February 2019 by Karim Yessad
Sommaire Abstract RESUME Contents This documentation has the aim to give a general overview of the ARPEGE/IFS, ALADIN and AROME models, for beginners or for someone which knows some specific points but has no general overview of the whole models. It can be seen (...)


Distributed memory features in the cycle 46t1r1 of ARPEGE/IFS. (Technical and coding aspects)

Tuesday 12 February 2019 by Karim Yessad
Sommaire Abstract RESUME Contents This documentation describes some aspects of the memory distribution for parallel environment (message passing). It is written as a complement of some other documentations (mainly the ECMWF documentation) so some points are not (...)


Minimizations in the cycle 46t1r1 of ARPEGE/IFS. (Technical and coding aspects)

Tuesday 12 February 2019 by Karim Yessad
Sommaire Abstract RESUME Contents This documentation describes the minimizations done in ARPEGE/IFS, for example in the 3DVAR and 4DVAR assimilation. First some algorithmic aspects are recalled about minimizers and solving of linear algebra systems. There is (...)


Trajectory management in the cycle 46t1r1 of ARPEGE/IFS. (Technical and coding aspects)

Tuesday 12 February 2019 by Karim Yessad
Sommaire Abstract RESUME Contents In ARPEGE/IFS, some applications (for example a 4DVAR minimisation) use a tangent linear code and an adjoint code. Such codes require to compute a trajectory, this trajectory is computed by running the direct code. The present (...)


Sphere to sphere transforms in spectral space in the cycle 46t1r1 of ARPEGE/IFS: configuration 911. (Configurations)

Tuesday 12 February 2019 by Karim Yessad
Sommaire Abstract RESUME Contents 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 (...)


Organigramme of configuration 923 in the cycle 46t1r1 of ARPEGE/IFS. (Climatologic and constant files)

Tuesday 12 February 2019 by Karim Yessad
Sommaire Abstract RESUME Contents This documentation provides an organigramme of configuration 923, which allows to compute climatological files (containing monthly climatologies of surface fields). It is the complement of some other documentations which (...)


FULL-POS in the cycle 46t1r1 of ARPEGE/IFS. (Diagnostics)

Tuesday 12 February 2019 by Karim Yessad
Sommaire Abstract RESUME Contents This documentation describes the software FULL-POS doing post-processing on different kind of vertical levels. In particular, post-processable variables and organigramme are given. Some aspects of horizontal and vertical (...)


IO IN THE CYCLE 46t1r1 OF ARPEGE/IFS: CALL-TREE ASPECTS. (Files and data)

Tuesday 12 February 2019 by Karim Yessad
Sommaire Abstract RESUME Contents This documentation gives an overview of the IO (file reading and writing) done in the most usual configurations. This is not a technical documentation about IO but rather a documentation describing entries to IO routines. It is (...)


User’s guide to add new GFL variables or new GFL attributes in ARPEGE/IFS, ALADIN, AROME: CYCLE 46t1r1. (Technical and coding aspects)

Tuesday 12 February 2019 by Karim Yessad
Sommaire Abstract RESUME Contents This documentation is an user’s guide for people wanting to introduce new GFL variables or new GFL attributes. Cette documentation est un guide d’utilisation pour les personnes qui veulent introduire de nouvelles variables ou (...)


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