Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Sébastien Lebonnois"'
For twenty years, a Planetary Climate Model (PCM) has been developed for the Venus atmosphere at “Institut Pierre-Simon Laplace” (IPSL), in collaboration between LMD and LATMOS, from the surface up to 250 km altitude (Lebonnois et al., 2010; 2016
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8439046d0cccff2b2cd2f8c23959368f
https://doi.org/10.5194/egusphere-egu23-14293
https://doi.org/10.5194/egusphere-egu23-14293
We present here three-dimensional simulations of the Venus photochemistry and clouds from the ground to the bottom of the thermosphere. For that purpose, we have implemented a state-of-the-art photochemical and equilibrium cloud model in the Venus Pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2f9ae95ce3ae705b0038d657b247cf2
http://hdl.handle.net/10261/311700
http://hdl.handle.net/10261/311700
Introduction The thermal tides are the main cause of the atmospheric pressure variations on Venus, and are expected to generate temporal variations of the low-degree coefficients of the gravity field of the planet (Bills et al., 2020). However, these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e35b600679066a51b70f786048eaac4
https://doi.org/10.5194/epsc2022-566
https://doi.org/10.5194/epsc2022-566
Titan's atmosphere has one of the most complex chemistry of the Solar System. On the one hand, its two main compounds, nitrogen and methane, are dissociated at high altitude by energetic solar photons and charged particles coming from the Saturnian m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5671dda597304b674b505ac0ce31733f
https://doi.org/10.5194/epsc2022-445
https://doi.org/10.5194/epsc2022-445
Titan, the largest satellite of Saturn, is known to host a rich and active meteorology, by all standards more dynamic than previously thought before the Cassini-Huygens mission. One key element of the dynamic Titan's atmosphere is the Planetary Bound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a8c66ce9183b5cb7ff6d6a7b9d49cad
https://doi.org/10.5194/epsc2022-981
https://doi.org/10.5194/epsc2022-981
Autor:
Pascal Rannou, Maélie Coutelier, Sébastien Lebonnois, Luca Maltagliati, Emmanuel Rivière, Michaël Rey, Sandrine Vinatier
Titan, the largest satellite of Saturn, has a dense atmosphere mainly composed of nitrogen and methane at a percent level. These two molecules generate a complex prebiotic chemistry, a global haze, most of the cloud cover and the rainfalls which mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bd3ed413d15bb756215c69d33b2c391
https://doi.org/10.5194/epsc2022-130
https://doi.org/10.5194/epsc2022-130
Publikováno v:
Icarus
Icarus, Elsevier, 2019, 333, pp.113-126. ⟨10.1016/j.icarus.2019.05.031⟩
Icarus, Elsevier, 2019, 333, pp.113-126. ⟨10.1016/j.icarus.2019.05.031⟩
Cassini-Huygens provided a wealth of data with which to constrain numerical models of Titan. Such models have been employed over the last decade to investigate various aspects of Titan's atmosphere and climate, and several three-dimensional general c
Context: Saturn's massive gravity is expected to causes a tide in Titan's atmosphere, producing a surface pressure variation through the orbit of Titan and tidal winds in the troposphere. The future Dragonfly mission could analyse this exotic meteoro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::986c9a5db7774a95e62f579e5b440d82
https://hal.archives-ouvertes.fr/hal-03428428
https://hal.archives-ouvertes.fr/hal-03428428
Autor:
Thomas Pierron, Aymeric Spiga, Forget Francois, Antoine Martinez, Ehouarn Millour, Jean-Yves Chaufray, Fabrice Cipriani, Franck Montmessin, Sébastien Lebonnois
Publikováno v:
European Planetary Science Congress. EPSC 2021
European Planetary Science Congress. EPSC 2021, Sep 2021, Virtual Meeting, France. ⟨10.5194/epsc2021-234⟩
European Planetary Science Congress. EPSC 2021, Sep 2021, Virtual Meeting, France. ⟨10.5194/epsc2021-234⟩
The Venus Climate Database (VCD) is based on the outputs of our state-of-the-art Venus Global Climate Model (GCM) [1-3]. This tool, in the footsteps and spirit of its Martian equivalent, the Mars Climate Database (MCD) [4], is intended to be useful f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65ec6c9b3fc63b516548766da50bd92a
https://hal-insu.archives-ouvertes.fr/insu-03313877
https://hal-insu.archives-ouvertes.fr/insu-03313877
Introduction: Given the extreme conditions in the lower atmosphere of Venus, various in-situ missions faced instrumental failures. As a result, the thermal structure of the deep atmosphere, particularly below 12 km is not well known. In Venus Interna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ad41160d73f87a31f29919634156ace
https://doi.org/10.5194/epsc2021-730
https://doi.org/10.5194/epsc2021-730