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Detection of Venus surface anomalies in the Northern hemisphere by VIRTIS/VEX and discussion of retrieved results

Arnold, Gabriele and Haus, Rainer and Kappel, David and Basilevsky, Alexander (2009) Detection of Venus surface anomalies in the Northern hemisphere by VIRTIS/VEX and discussion of retrieved results. In: 4th European Planetary Science Congress, CD-ROM, 4. European Planetary Science Congress 2009, 13.-18. Sep. 2009, Potsdam, Germany.

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Official URL: http://meetingorganizer.copernicus.org/EPSC2009/EPSC2009-475.pdf

Abstract

Venus nightside emission measurements by the Visible and Infrared Thermal Imaging Spectrometer (VIRTIS) aboard Venus Express (VEX) are used to extract information about surface features in the Northern hemisphere of the planet. A radiative transfer calculation technique is applied to simulate Venus nightside radiation as a function of surface, atmospheric and instrumental parameters. A radiance ratio based quick-look extraction of topographic information is compared to Magellan radar data. Some discrepancies are identified. These anomalies are examined in detail using a new multi-spectral retrieval algorithm. The anomalies are discussed in terms of possible surface emissivity variations. Radiance spectrum retrievals along several complete Northern hemisphere orbits indicate an emissivity decrease in the highlands in accordance with increased Magellan radar reflectivities.

Document Type:Conference or Workshop Item (Speech)
Title:Detection of Venus surface anomalies in the Northern hemisphere by VIRTIS/VEX and discussion of retrieved results
Authors:
AuthorsInstitution or Email of Authors
Arnold, GabrieleGabriele.Arnold@dlr.de
Haus, RainerWestfälische Wilhelms-Universität Münster
Kappel, DavidWestfälische Wilhelms-Universität Münster
Basilevsky, AlexanderVernadsky Institute, Moscow, Russia
Date:15 September 2009
Journal or Publication Title:4th European Planetary Science Congress, CD-ROM
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Volume:4
Series Name:EPSC Abstracts
Status:Published
Keywords:VIRTIS, VEX, Venus, retrieval, surface, anomalies
Event Title:European Planetary Science Congress 2009
Event Location:Potsdam, Germany
Event Type:international Conference
Event Dates:13.-18. Sep. 2009
Organizer:Europlanet
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Venus Express (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: David Kappel
Deposited On:13 Jan 2011 13:07
Last Modified:13 Jan 2011 14:21

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