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Mars‐solar windinteraction: LatHyS,an improved parallel3‐D multispecieshybrid model R. ModoloS. HeßMarco Mancini2016 год

Mars‐solar wind interaction: LatHyS, an improved parallel 3‐D multispecies hybrid model
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Аннотация: Abstract In order to better represent Mars‐solar wind interaction, we present an unprecedented model achieving spatial resolution down to 50 km, a so far unexplored resolution for global kinetic models of the Martian ionized environment. Such resolution approaches the ionospheric plasma scale height. In practice, the model is derived from a first version described in Modolo et al. (2005). An important effort of parallelization has been conducted and is presented here. A better description of the ionosphere was also implemented including ionospheric chemistry, electrical conductivities, and a drag force modeling the ion‐neutral collisions in the ionosphere. This new version of the code, named LatHyS (Latmos Hybrid Simulation), is here used to characterize the impact of various spatial resolutions on simulation results. In addition, and following a global model challenge effort, we present the results of simulation run for three cases which allow addressing the effect of the suprathermal corona and of the solar EUV activity on the magnetospheric plasma boundaries and on the global escape. Simulation results showed that global patterns are relatively similar for the different spatial resolution runs, but finest grid runs provide a better representation of the ionosphere and display more details of the planetary plasma dynamic. Simulation results suggest that a significant fraction of escaping O + ions is originated from below 1200 km altitude.
Год издания: 2016
Авторы: R. Modolo, S. Heß, Marco Mancini, François Leblanc, Jean‐Yves Chaufray, D. A. Brain, Ludivine Leclercq, Rosa Esteban-Hernández, G. Chanteur, Philippe Weill, Francisco González‐Galindo, F. Forget, Manabu Yagi, C. Mazelle
Издательство: Wiley
Источник: Journal of Geophysical Research Space Physics
Ключевые слова: Planetary Science and Exploration, Astro and Planetary Science, Space Science and Extraterrestrial Life
Другие ссылки: Journal of Geophysical Research Space Physics (PDF)
Journal of Geophysical Research Space Physics (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (PDF)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)