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The Electron and Proton Energy Input Into The Auroral Thermosphere During Substorms: Remote Sensing With Image-fuv
Hubert, Benoît; Gérard, Jean-Claude; Meurant, M. et al.
2002In EGS XXVII General Assembly, Nice, 21-26 April 2002
 

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Abstract :
[en] This paper investigates the dynamical properties of the Eta model, a state-of-the- art nested limited-area model, following the approach previously developed by the present authors. It is first shown that the intrinsic dynamics of the model depends crucially on the size of the domain, with a non-chaotic behavior for small domains, supporting earlier findings on the absence of sensitivity to the initial conditions in these models. The quality of the predictions of several Eta model versions differing by their domain size is next evaluated and compared with the Avn analyses on a targeted region, centered on France. Contrary to what is usually taken for granted, a non-trivial relation between predictability and domain size is found, the best model versions be- ing the ones integrated on the smallest and the largest domain sizes. An explanation in connection with the intrinsic dynamics of the model is advanced.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Hubert, Benoît  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Gérard, Jean-Claude  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Meurant, M.
Evans, D. S.
Mende, S. B.
Frey, H. U.
Immel, T. J.
Language :
English
Title :
The Electron and Proton Energy Input Into The Auroral Thermosphere During Substorms: Remote Sensing With Image-fuv
Publication date :
2002
Event name :
EGS
Event organizer :
EGS
Event date :
2002
Audience :
International
Main work title :
EGS XXVII General Assembly, Nice, 21-26 April 2002
Publisher :
EGS
Pages :
1666
Commentary :
27
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