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Communication Dans Un Congrès Année : 2018

Progress towards a post-Venus Express Clouds & Haze reference model for Venus

Résumé

With the end of Venus Express in 2014, the focus of the scientific community has gradually moved from the study of Venus Express mono-instrumental data sets to cross-instrumental studies involving pure modeling as well. This is especially true for the clouds and hazes that surround most of the planet between 48 and 70 km. They play a major role at the crossroads of various atmospheric processes among which the radiative budget as well as the dynamical and chemical coupling between the lower and upper atmosphere. In order to support such efforts, ISSI has supported from 2013 to 2015 a "Clouds & Hazes of Venus" scientific team involving Venus Express and ground-based observers as well as microphysical modelers. Together, they compared their results in order to achieve a more unified and consistent view of Venus' clouds and hazes, taking into account its spatial and temporal variability more in detail than previously available VIRA-1 and 2 cloud models. We will review the individual data sets and models that have been used, and then present our strategy towards a unified cloud model. We will first make available some observable parameters to the wider community through a web-based repository. Future steps may involve more advanced techniques (e.g. data assimilation) in order to achieve our objective of a unified Venus clouds & haze model that encompasses its various variabilities as well as possible.
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Dates et versions

insu-04463664 , version 1 (17-02-2024)

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Emmanuel Marcq, Dmitrij Titov, Colin Wilson. Progress towards a post-Venus Express Clouds & Haze reference model for Venus. 42nd COSPAR Scientific Assembly, Jul 2018, Pasadena, United States. ⟨insu-04463664⟩
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