SMuK 2023 – scientific programme

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SYSC: Symposium Strange Clouds – from the Earth to Exoplanets

SYSC 1: Strange Clouds – From the Earth to Exoplanets

SYSC 1.3: Invited Talk

Tuesday, March 21, 2023, 11:45–12:10, HSZ/0004

The dynamic clouds of Venus — •Javier Peralta — Facultad de Fisica (Universidad de Sevilla), Sevilla, Spain

Venus is an excellent laboratory to study terrestrial planets permanently covered by clouds. In fact, Venus exhibits a thick cloudy layer which extends along an altitude range of 20 km, these clouds being mainly composed of sulphuric acid droplets and hiding a mysterious absorber proven to be a main driver of its atmospheric dynamics. The spectroscopic and imagery data set acquired during the last 15 years thanks to the space missions Venus Express (ESA) and Akatsuki (JAXA) not only have allowed us to better understand their composition and the prevailing atmospheric dynamics, but the clouds of Venus have also proven their potential to study the generation and impact of the thermal tides, characterize diverse planetary-scale waves and atmospheric instabilities, confirm the vertical propagation of waves generated at the surface, and discover new atmospheric phenomena yet without explanation. The clouds of Venus have also been shown to represent a false positive when inferring surface properties from time-series measurements of reflected starlight on exoplanets.