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Waves in a Venus general circulation model

Sugimoto, Norihiko; Takagi, Masahiro; Matsuda, Yoshihisa

Waves in the Venus atmosphere are numerically investigated by extending a work of Sugimoto et al. (2014). Fast superrotating zonal flow of 120 m s^-1 at the equator is reproduced and maintained by solar heating for more than 10 Earth years. The meridional distribution of the obtained fast zonal flow is quite consistent with observations …

Solar wind-driven thermospheric winds over the Venus North Polar region

Fedorov, A.; Barabash, S.; Lundin, R. +3 more

Data from the neutral particle imager (NPI) on Venus Express reveals the presence of a persistent +Y (Venus Solar-Oriented) flow of Energetic Neutral Atoms (ENAs) in the Venus polar thermosphere. The overall flow morphology and altitude distribution of ENAs, solar wind H⁺ (SWH⁺), and ionospheric O⁺ imply that SWH