Universität zu Köln

Gerard, J. -C., Bougher, S. W., Lopez-Valverde, M. A., Paetzold, M., Drossart, P. and Piccioni, G. (2017). Aeronomy of the Venus Upper Atmosphere. Space Sci. Rev., 212 (3-4). S. 1617 - 1684. DORDRECHT: SPRINGER. ISSN 1572-9672

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Abstract

We present aeronomical observations collected using remote sensing instruments on board Venus Express, complemented with ground-based observations and numerical modeling. They are mostly based on VIRTIS and SPICAV measurements of airglow obtained in the nadir mode and at the limb above 90 km. They complement our understanding of the behavior of Venus' upper atmosphere that was largely based on Pioneer Venus observations mostly performed over thirty years earlier. Following a summary of recent spectral data from the EUV to the infrared, we examine how these observations have improved our knowledge of the composition, thermal structure, dynamics and transport of the Venus upper atmosphere. We then synthesize progress in three-dimensional modeling of the upper atmosphere which is largely based on global mapping and observations of time variations of the nitric oxide and O-2 nightglow emissions. Processes controlling the escape flux of atoms to space are described. Results based on the VeRA radio propagation experiment are summarized and compared to ionospheric measurements collected during earlier space missions. Finally, we point out some unsolved and open questions generated by these recent datasets and model comparisons.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Gerard, J. -C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bougher, S. W. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lopez-Valverde, M. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Paetzold, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Drossart, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Piccioni, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-213131
DOI:	10.1007/s11214-017-0422-0
Journal or Publication Title:	Space Sci. Rev.
Volume:	212
Number:	3-4
Page Range:	S. 1617 - 1684
Date:	2017
Publisher:	SPRINGER
Place of Publication:	DORDRECHT
ISSN:	1572-9672
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language 4.7 MU-M; TERRESTRIAL PLANET THERMOSPHERES; RADIO OCCULTATION MEASUREMENTS; GROUND-BASED OBSERVATIONS; NEUTRAL GAS-COMPOSITION; SOLAR-CYCLE VARIATION; O-2 INFRARED AIRGLOW; OXYGEN EUV DAYGLOW; THERMAL STRUCTURE; GENERAL-CIRCULATION Multiple languages Astronomy & Astrophysics Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/21313