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Densities and temperatures in the Venus mesosphere and lower thermosphere retrieved from SOIR on board Venus Express: Carbon dioxide measurements at the Venus terminator
Vandaele, A. C.; Robert, S.; Montmessin, F. +4 more
SOIR is a high-resolution spectrometer flying on board the ESA Venus Express mission. It performs solar occultations of the Venus high atmosphere, and so defines unique vertical profiles of many of the Venus key species. In this paper, we focus on the Venus main constituent, carbon dioxide. We explain how the temperature, the total density, and th…
Dayside thermal structure of Venus' upper atmosphere characterized by a global model
Brecht, A. S.; Bougher, S. W.
Observations of Venus' dayside thermal structure are being conducted through ground based observatories. These temperature measurements, along with those from several instruments onboard the current Venus Express mission, are augmenting the previous thermal structure data from past missions (e.g., Veneras', Pioneer Venus Orbiter, Pioneer Venus Pro…
Whistler mode bursts in the Venus ionosphere due to lightning: Statistical properties using Venus Express magnetometer observations
Russell, C. T.; Wei, H. Y.; Zhang, T. L. +2 more
The Venus Express mission has completed over four years in polar orbit about Venus with periapsis altitudes as low as 180 km. On each orbit around periapsis the fluxgate magnetometer samples the magnetic field at 128 Hz. The data reveal short-lived bursts with peak-to-peak amplitudes up to 1.5 nT in the frequency range 42 to 60 Hz. These signals a…
Modeled O2 nightglow distributions in the Venusian atmosphere
Bougher, Stephen W.; Melo, Stella M. L.; Strong, Kimberly +2 more
In this paper, we study the global distribution of the O2 Infrared Atmospheric (0-0) emission at 1.27 µm in the Venusian atmosphere with an airglow model in combination with atmospheric conditions provided by a three-dimensional model, the Venus Thermospheric Global Circulation Model. We compare our model simulations with airglow …