Mesospheric Carbon Dioxide And Temperature Retrievals
From Nomad-So Onboard Tgo.
L. Trompet, A.C. Vandaele, I. Thomas Royal Belgian Institute For Space Aeronomy, Brussels, Belgium
(Loic.Trompet@Aeronomie.Be), S. Aoki Graduate School Of Frontier Sciences, The University Of Tokyo,
Kashiwa, Japan, F. Daerden, J. Erwin, Z. Flimon, A. Mahieux, L. Neary, S. Robert Royal Belgian Institute
For Space Aeronomy, Brussels, Belgium, G. Villanueva, G. Liuzzi Goddard Flight Space Center, Gfsc,
Greenbelt, Usa, M.A. Lopez-Valverde, A. Brines, J. J. Lopez-Moreno Instituto De Astrofisica De Andalucia,
Iaa/Csic, Spain, G. Bellucci Istituto Di Astrofisica E Planetologia Spaziali, Iaps/Inaf, Rome, Italy, M. R.
Patel 8school Of Physical Sciences, The Open University, Milton Keynes, Uk.

Introduction:
Mars Mesosphere Is The Place Of Many Atmospheric Phenomena Such As Gravity Waves, Large Amplitudes Tides And Temperature Inversion. The Mesosphere Has Been Less Studied Than The Lowest And
Highest Altitudes But Nomad-So (So In The Following) Is Regularly Scanning The Mars Atmosphere From
The Troposphere To An Altitude Around 200 Km And We
Focus In This Work On The Retrievals In The Mesosphere.
The So Channel Of The Nomad Instrument
(Vandaele Et Al., 2015) Is Dedicated To Solar Occultation Measurements And The Derived Profiles Are Located At The Terminator. So Is An Infrared Spectrometer
(2.3-4.3 Μm) Composed Of An Echelle Grating With An
Acousto-Optical Tunable Filter For Diffraction Order
Selection. In This Work, We Focus On The Retrievals