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The Venus Emissivity Mapper (VEM) - Obtaining Global Mineralogy of Venus from Orbit

Helbert, Jörn and Dyar, M. D. and Walter, Ingo and Wendler, Dennis and Widemann, T. and Marcq, E. and Guignan, Gabriel and Maturilli, Alessandro and Ferrari, Sabrina and Müller, Nils and Kappel, David and D'Amore, Mario and Börner, Anko and Tsang, C. C. C. and Arnold, Gabriele and Smrekar, S.E. and Ghail, Richard (2018) The Venus Emissivity Mapper (VEM) - Obtaining Global Mineralogy of Venus from Orbit. In: 16th Meeting of the Venus Exploration and Analysis Group (VEXAG), p. 8023. 16th Meeting of the Venus Exploration and Analysis Group (VEXAG), 06 - 08 Nov 2018, Laurel, USA.

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Official URL: https://www.hou.usra.edu/meetings/vexag2018/pdf/8023.pdf

Abstract

The Venus Emissivity Mapper is the first flight instrument designed to focus on mapping the surface of Venus using atmospheric windows around 1 micron. After several years of development, VEM has a mature design with an existing laboratory prototype verifying an achievable instrument SNR of well above 1000, as well as predicted error in retrieval of relative emissivity of better than 1%, assuming the availability of an improved Venus topography. It will provide a global map of rock type, iron contents and redox state of the surface by observing the surface with six narrow band filters, ranging from 0.86 to 1.18 micron. Three additional windows allow corrections for cloud composition and variability, two measure water abundance, and three compensate for stray light. Continuous observation of Venus' thermal emission will also place tighter constraints on current day volcanic activity. Eight of the channels provide measurements of atmospheric water vapor abundance as well as cloud microphysics and dynamics and permit accurate correction of atmospheric interference on the surface data. Combining VEM with a high-resolution radar mapper, such as on the ESA EnVision or NASA VERITAS mission proposals, will provide key insights into the divergent evolution of Venus and Earth.

Item URL in elib:https://elib.dlr.de/124881/
Document Type:Conference or Workshop Item (Speech)
Title:The Venus Emissivity Mapper (VEM) - Obtaining Global Mineralogy of Venus from Orbit
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Helbert, JörnJoern.Helbert (at) dlr.dehttps://orcid.org/0000-0001-5346-9505
Dyar, M. D.Planetary Science Institute, 1700 East Fort Lowell, Tucson, AZ; Dept. of Astronomy, Mount Holyoke College, South Hadley, MAUNSPECIFIED
Walter, IngoIngo.Walter (at) dlr.deUNSPECIFIED
Wendler, DennisDennis.Wendler (at) dlr.deUNSPECIFIED
Widemann, T.LESIAUNSPECIFIED
Marcq, E.emmanuel.marcq (at) latmos.ipsl.frUNSPECIFIED
Guignan, GabrielLATMOSUNSPECIFIED
Maturilli, AlessandroAlessandro.Maturilli (at) dlr.deUNSPECIFIED
Ferrari, Sabrinasabrina.ferrari (at) dlr.deUNSPECIFIED
Müller, NilsNils.Mueller (at) dlr.deUNSPECIFIED
Kappel, DavidDavid.Kappel (at) dlr.dehttps://orcid.org/0000-0002-0518-5548
D'Amore, MarioMario.DAmore (at) dlr.dehttps://orcid.org/0000-0001-9325-6889
Börner, AnkoAnko.Boerner (at) dlr.deUNSPECIFIED
Tsang, C. C. C.Southwest Research Institute, Boulder, CO 80302, USAUNSPECIFIED
Arnold, GabrieleGabriele.Arnold (at) dlr.deUNSPECIFIED
Smrekar, S.E.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USAUNSPECIFIED
Ghail, RichardImperial College London, London, SW7 2AZ, UKUNSPECIFIED
Date:8 November 2018
Journal or Publication Title:16th Meeting of the Venus Exploration and Analysis Group (VEXAG)
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:p. 8023
Status:Published
Keywords:Venus, composition, remote sensing, spectroscopy, Venus Emissivity Mapper
Event Title:16th Meeting of the Venus Exploration and Analysis Group (VEXAG)
Event Location:Laurel, USA
Event Type:international Conference
Event Dates:06 - 08 Nov 2018
Organizer:VEXAG
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):Venus Emissivity Mapper
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Leitungsbereich PF
Institute of Planetary Research > Asteroids and Comets
Institute of Planetary Research > Planetary Physics
Institute of Planetary Research > Planetary Sensor Systems
Institute of Optical Sensor Systems > Space Instruments
Institute of Optical Sensor Systems > Real-Time Data Processing
Deposited By: Kappel, David
Deposited On:12 Dec 2018 10:31
Last Modified:31 Jul 2019 20:22

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