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Aerosol properties in the upper clouds of Venus from glory observations by the Venus Monitoring Camera (Venus Express mission)
Markiewicz, Wojciech J.; Petrova, Elena V.; Shalygina, Oksana S.
From the angular positions of the glory features observed on the upper cloud deck of Venus in three VMC channels (at 0.365, 0.513, and 0.965 µm), the dominating sizes of cloud particles and their refractive indices have been retrieved, and their spatial and temporal variations have been analyzed. For this, the phase profiles of brightness we…
Glory on Venus and selection among the unknown UV absorbers
Petrova, Elena V.
The comparison of the phase profiles of glories observed on the cloud top of Venus by the Venus Monitoring Camera (Venus Express) and the light-scattering characteristics of sulfuric acid droplets, containing admixtures with a high refractive index, makes it easier to choose between some candidates for the so-called unknown UV absorber in the Venu…
Scale heights and detached haze layers in the mesosphere of Venus from SPICAV IR data
Montmessin, F.; Fedorova, A.; Korablev, O. +3 more
SPICAV IR, one channel of SPICAV/SOIR instrument suite onboard Venus Express, performed solar occultation measurements of the atmosphere at terminators in 0.65-1.7 µm spectral range. We analyze the properties of the upper part of the Venus aerosol layer (upper haze, 70 - 95 km altitude) from 798 observations performed from May 2006 through N…
Long term evolution of temperature in the venus upper atmosphere at the evening and morning terminators
Pätzold, M.; Vandaele, A. C.; Montmessin, F. +11 more
This paper contains a comprehensive dataset of long-term observations between 2009 and 2015 at the upper mesosphere/lower thermosphere providing temperature values at different locations of the morning and evening side of the terminator of Venus. Temperature information is obtained by line-resolved spectroscopy of Doppler broadened CO2 …
Temperature estimation from hydroxyl airglow emission in the Venus night side mesosphere
Drossart, P.; Piccioni, G.; Gérard, J. -C. +3 more
The temperature of the night side of Venus at about 95 km has been determined by using spectral features of the hydroxyl airglow emission around 3 µm, recorded from July 2006 to July 2008 by VIRTIS onboard Venus Express. The retrieved temperatures vary from 145.5 to about 198.1 K with an average value of 176.3 ± 14.3 K and are in good agreem…