[CANCELLED] Séminaire LATMOS – Venus cloud modelling across different scales from nano to global

Hiroki Karyu (Institute of Science, Tokyo, Japan & BIRA-IASB, Belgium), présentera le vendredi 23 octobre 2026, un séminaire intitulé : « Venus cloud modelling across different scales from nano to global ».

Venus cloud modelling across different scales from nano to global

Vendredi 23 octobre 2026
à 11h

IPSL – Sorbonne Université
Tour 15-55, salle 201 (2e étage)
4, place Jussieu, 75005 Paris

Remote link: https://visio.numerique.gouv.fr/kao-cnjr-air

Plus d’infos
→ Venus cloud modelling across different scales from nano to global – Institut Pierre-Simon Laplace

All LATMOS seminars
→ Séminaires du LATMOS – Sciences planétaires, atmosphères et observation spatiale – Académie Spatiale d’Île-de-France

Previous LATMOS seminars are now available on Youtube:
→ https://youtube.com/playlist?list=PLVDexVGJCe0duF4LANooppLeGAdmlDRnN&si=mi5wjsxRsKgQQ6iC

ABSTRACT

Venus is completely shrouded in sulfuric acid clouds that govern its radiative balance, dynamics, and chemistry. Thus, the clouds play a pivotal part in Venus’ atmospheric system. In this talk, I will present a series of studies that combine numerical modeling to understand the cloud formation mechanism. The numerical tools we use include 3-D GCM and 1-D cloud microphysics modeling. The former is used to understand how clouds form and are distributed globally. The latter is used to track the evolution of cloud size from its birth (nucleation) to the observed micron-sized particles. Finally, I will highlight ongoing work building upon these modeling frameworks.