NOMAD, an Integrated Suite of Three Spectrometers for the ExoMars Trace Gas Mission: Technical Description, Science Objectives and Expected Performance

Journal
Date Issued
2018
Author(s)
Vandaele, A. C.
•
Lopez-Moreno, J. -J.
•
Patel, M. R.
•
•
Daerden, F.
•
Ristic, B.
•
Robert, S.
•
Thomas, I. R.
•
Wilquet, V.
•
Allen, M.
•
Alonso-Rodrigo, G.
•
•
Aoki, S.
•
Bolsée, D.
•
Clancy, T.
•
Cloutis, E.
•
Depiesse, C.
•
Drummond, R.
•
Fedorova, A.
•
Formisano, V.
•
Funke, B.
•
González-Galindo, F.
•
Geminale, A.
•
Gérard, J. -C.
•
•
Hetey, L.
•
Ignatiev, N.
•
Kaminski, J.
•
Karatekin, O.
•
Kasaba, Y.
•
Leese, M.
•
Lefèvre, F.
•
Lewis, S. R.
•
López-Puertas, M.
•
López-Valverde, M.
•
Mahieux, A.
•
Mason, J.
•
McConnell, J.
•
Mumma, M.
•
Neary, L.
•
Neefs, E.
•
Renotte, E.
•
Rodriguez-Gomez, J.
•
Sindoni, G.
•
Smith, M.
•
Stiepen, A.
•
Trokhimovsky, A.
•
Vander Auwera, J.
•
Villanueva, G.
•
Viscardy, S.
•
Whiteway, J.
•
Willame, Y.
•
Wolff, M.
DOI
Abstract
The NOMAD ("Nadir and Occultation for MArs Discovery") spectrometer suite on board the ExoMars Trace Gas Orbiter (TGO) has been designed to investigate the composition of Mars' atmosphere, with a particular focus on trace gases, clouds and dust. The detection sensitivity for trace gases is considerably improved compared to previous Mars missions, compliant with the science objectives of the TGO mission. This will allow for a major leap in our knowledge and understanding of the Martian atmospheric composition and the related physical and chemical processes. The instrument is a combination of three spectrometers, covering a spectral range from the UV to the mid-IR, and can perform solar occultation, nadir and limb observations. In this paper, we present the science objectives of the instrument and explain the technical principles of the three spectrometers. We also discuss the expected performance of the instrument in terms of spatial and temporal coverage and detection sensitivity.
Volume
214
Issue
5
Start page
80
Uri
Url
Issn Identifier
0038-6308
Ads BibCode
2018SSRv..214...80V
Rights
open.access
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