Toward a data assimilation system for NEMO

Pierre-Antoine Bouttier 1, 2 Eric Blayo 1 Jean-Michel Brankart 3 Pierre Brasseur 2 Emmanuel Cosme 2 Jacques Verron 2 Arthur Vidard 1, *
* Corresponding author
1 MOISE - Modelling, Observations, Identification for Environmental Sciences
Inria Grenoble - Rhône-Alpes, LJK - Laboratoire Jean Kuntzmann, INPG - Institut National Polytechnique de Grenoble
3 MEOM - Modélisation des Ecoulements Océaniques à Moyenne et grande échelle [Grenoble]
LGGE - Laboratoire de glaciologie et géophysique de l'environnement
Abstract : In this note, we discuss the project that has been conceived and the first achievement steps that have been carried out to set up a data assimila-­ tion system associated to NEMO. Of specific interest here are applications to operational oceanography. This data assimilation system is sche-­ matically made of three subcomponents: Interface Components, Built-in Components and External Components. Several elements of this NEMO data assimilation system have already been developed by various groups in France and in Europe and several of them could be introduced in the system (the linear Tangent and Adjoint Model, TAM, is one of the most important of them as far as variational assimilation is concerned), some others will require specific developments. Finally, we introduce the SEABASS reference configuration that is proposed to be the NEMO data as-­ similation demonstrator and the experimentation and training platform for data assimilation activities with NEMO. These various thoughts take advantage of the advances and discussions that have been carried out by the NEMOASSIM working group.
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Pierre-Antoine Bouttier, Eric Blayo, Jean-Michel Brankart, Pierre Brasseur, Emmanuel Cosme, et al.. Toward a data assimilation system for NEMO. Mercator Ocean Quarterly Newsletter, Mercator Ocean, 2012, pp.24-30. ⟨hal-00945600⟩

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