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Twelve-Year Cycle in the Cloud Top Winds Derived from VMC/Venus Express and UVI/Akatsuki Imaging

Titov, Dmitrij V.; Ignatiev, Nikolay I.; Khatuntsev, Igor V. +3 more

We present joint analysis of the UV (365 nm) images captured by the cameras on board ESA's Venus Express and JAXA's Akatsuki spacecraft. These observations enabled almost continuous characterization of the cloud top circulation over the longest period of time so far (2006-2021). More than 46,000 wind vectors were derived from tracking the UV cloud…

Venus' Cloud-Tracked Winds Using Ground- and Space-Based Observations with TNG/NICS and VEx/VIRTIS

Machado, Pedro; Peralta, Javier; Silva, José E. +3 more

Characterizing the wind speeds of Venus and their variability at multiple vertical levels is essential for a better understanding of the atmospheric superrotation, constraining the role of large-scale planetary waves in the maintenance of this superrotation, and in studying how the wind field affects clouds' distribution. Here, we present cloud-tr…

Venus Atmospheric Dynamics at Two Altitudes: Akatsuki and Venus Express Cloud Tracking, Ground-Based Doppler Observations and Comparison with Modelling

Widemann, Thomas; Machado, Pedro; Peralta, Javier +6 more

Winds in the Lower Cloud Level on the Nightside of Venus from VIRTIS-M (Venus Express) 1.74 µm Images

Khatuntsev, Igor V.; Patsaeva, Marina V.; Zasova, Ludmila V. +2 more

Validation of the IPSL Venus GCM Thermal Structure with Venus Express Data

Piccioni, Giuseppe; Tellmann, Silvia; Lebonnois, Sebastien +4 more

General circulation models (GCMs) are valuable instruments to understand the most peculiar features in the atmospheres of planets and the mechanisms behind their dynamics. Venus makes no exception and it has been extensively studied thanks to GCMs. Here we validate the current version of the Institut Pierre Simon Laplace (IPSL) Venus GCM, by means…