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EnVision: taking the pulse of our twin planet

Ghail, Richard and Wilson, Colin and Galand, Marina and Hall, David and Cochrane, Chris and Mason, Phillip and Helbert, Joern and MontMessin, Franck and Limaye, Sanjay and Patel, Manish (2012) EnVision: taking the pulse of our twin planet. Experimental Astronomy, 33 (2-3), pp. 337-363. Springer. DOI: 10.1007/s10686-011-9244-3

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Official URL: http://link.springer.com/article/10.1007%2Fs10686-011-9244-3


EnVision is an ambitious but low-risk response to ESA’s call for a medium-size mission opportunity for a launch in 2022. Venus is the planet most similar to Earth in mass, bulk properties and orbital distance, but has evolved to become extremely hostile to life. EnVision’s 5-year mission objectives are to determine the nature of and rate of change caused by geological and atmospheric processes, to distinguish between competing theories about its evolution and to help predict the habitability of extrasolar planets. Three instrument suites will address specific surface, atmosphere and ionosphere science goals. The Surface Science Suite consists of a 2.2 m2 radar antenna with Interferometer, Radiometer and Altimeter operating modes, supported by a complementary IR surface emissivity mapper and an advanced accelerometer for orbit control and gravity mapping. This suite will determine topographic changes caused by volcanic, tectonic and atmospheric processes at rates as low as 1 mm a − 1. The Atmosphere Science Suite consists of a Doppler LIDAR for cloud top altitude, wind speed and mesospheric structure mapping, complemented by IR and UV spectrometers and a spectrophotopolarimeter, all designed to map the dynamic features and compositions of the clouds and middle atmosphere to identify the effects of volcanic and solar processes. The Ionosphere Science Suite uses a double Langmiur probe and vector magnetometer to understand the behaviour and long-term evolution of the ionosphere and induced magnetosphere. The suite also includes an interplanetary particle analyser to determine the delivery rate of water and other components to the atmosphere.

Item URL in elib:https://elib.dlr.de/80260/
Document Type:Article
Title:EnVision: taking the pulse of our twin planet
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ghail, RichardImperial College LondonUNSPECIFIED
Wilson, ColinUniversity of OxfordUNSPECIFIED
Galand, MarinaImperial College LondonUNSPECIFIED
Hall, DavidAstriumUNSPECIFIED
Cochrane, ChrisImperial College LondonUNSPECIFIED
Mason, PhillipImperial College LondonUNSPECIFIED
Helbert, Joernjoern.helbert (at) dlr.deUNSPECIFIED
Limaye, SanjayUniversity of Wisconsin-MadisonUNSPECIFIED
Patel, ManishOpen UniversityUNSPECIFIED
Date:April 2012
Journal or Publication Title:Experimental Astronomy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1007/s10686-011-9244-3
Page Range:pp. 337-363
Keywords:Venus tectonics Venus atmosphere Venus ionosphere InSAR LIDAR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Venus Express Kamera (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Experimentelle Planetenphysik
Deposited By: Helbert, Dr.rer.nat. Jörn
Deposited On:08 Jan 2013 09:01
Last Modified:06 Sep 2019 15:25

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