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Radiative transfer modelling for the NOMAD-UVIS instrument on the ExoMars Trace Gas Orbiter mission

D. G. Dawson, Manish Patel, S. R. Lewis, Jon Mason, P. G. J. Irwin

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Abstract

The NOMAD (Nadir and Occultation for MArs Dis-covery) instrument is a 3-channel (2 IR, 1 UV/Vis) spectrometer due to fly on the 2016 ExoMars Trace Gas Orbiter mission. A radiative transfer model for Mars has been developed providing synthetic spectra to simulate observations of the UVIS channel in both solar occultation and nadir viewing geometries. This will allow for the characterization and mitigation of the influence of dust on retrievals of ozone abundance. 1. The UVIS instrument UVIS is an ultraviolet and visible spectrometer form-ing part of the NOMAD instrument. UVIS will take frequent, high resolution (1 nm) spectra over the wave-length range of 200- 650 nm (the model is currently

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The NOMAD (Nadir and Occultation for MArs Dis-covery) instrument is a 3-channel (2 IR, 1 UV/Vis) spectrometer due to fly on the 2016 ExoMars Trace Gas Orbiter mission. A radiative transfer model for Mars has been developed providing synthetic spectra to simulate observations of the UVIS channel in both solar occultation and nadir viewing geometries. This will allow for the characterization and mitigation of the influence of dust on retrievals of ozone abundance. 1. The UVIS instrument UVIS is an ultraviolet and visible spectrometer form-ing part of the NOMAD instrument. UVIS will take frequent, high resolution (1 nm) spectra over the wave-length range of 200- 650 nm (the model is currently

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Available abstract

The NOMAD (Nadir and Occultation for MArs Dis-covery) instrument is a 3-channel (2 IR, 1 UV/Vis) spectrometer due to fly on the 2016 ExoMars Trace Gas Orbiter mission. A radiative transfer model for Mars has been developed providing synthetic spectra to simulate observations of the UVIS channel in both solar occultation and nadir viewing geometries. This will allow for the characterization and mitigation of the influence of dust on retrievals of ozone abundance. 1. The UVIS instrument UVIS is an ultraviolet and visible spectrometer form-ing part of the NOMAD instrument. UVIS will take frequent, high resolution (1 nm) spectra over the wave-length range of 200- 650 nm (the model is currently

Key concepts: Occultation, Orbiter, Nadir, Astrobiology, Trace gas, Radiative transfer, Mars Exploration Program, Environmental science

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Radiative transfer modelling for the NOMAD-UVIS instrument on the ExoMars Trace Gas Orbiter mission — Research Paper | ScholarLens