Carbon Dioxide Retrievals From NOMAD-SO on ESA's ExoMars Trace Gas Orbiter and Temperature Profile Retrievals With the Hydrostatic Equilibrium Equation: 2. Temperature Variabilities in the Mesosphere at Mars Terminator
| dc.contributor.author | Trompet, L. | |
| dc.contributor.author | Vandaele, A.C. | |
| dc.contributor.author | Thomas, I. | |
| dc.contributor.author | Aoki, S. | |
| dc.contributor.author | Daerden, F. | |
| dc.contributor.author | Erwin, J. | |
| dc.contributor.author | Flimon, Z. | |
| dc.contributor.author | Mahieux, A. | |
| dc.contributor.author | Neary, L. | |
| dc.contributor.author | Robert, S. | |
| dc.contributor.author | Villanueva, G. | |
| dc.contributor.author | Liuzzi, G. | |
| dc.contributor.author | Lopez-Valverde, M.A. | |
| dc.contributor.author | Brines, A. | |
| dc.contributor.author | Bellucci, G. | |
| dc.contributor.author | Lopez-Moreno, J.J. | |
| dc.contributor.author | Patel, M.R. | |
| dc.date | 2023 | |
| dc.date.accessioned | 2023-03-02T12:02:22Z | |
| dc.date.available | 2023-03-02T12:02:22Z | |
| dc.identifier.uri | https://orfeo.belnet.be/handle/internal/10771 | |
| dc.description | The Solar Occultation (SO) channel of the Nadir and Occultation for Mars Discovery (NOMAD) instrument scans the Martian atmosphere since 21 April 2018. In this work, we present a subset of the NOMAD SO data measured at the mesosphere. We focused on a spectral range that started to be recorded in Martian year (MY) 35. A total of 968 vertical profiles of carbon dioxide density and temperature covering MY 35 and the beginning of MY 36 were investigated until 135° of solar longitude. We compared 47 profiles with co-located profiles of the Mars Climate Sounder onboard the Mars Reconnaissance Orbiter. Most profiles show a good agreement as SO temperatures are only 1.8 K higher, but some biases lead to an average absolute difference of 7.4°K. The SO data set is also compared with simulations from the Global Environmental Multiscale-Mars general circulation model. Both data sets are in good agreement except for the presence of a cold layer in the winter hemisphere and a warm layer at dawn in the Northern hemisphere for solar longitudes between 240° and 360°. Five profiles contain temperatures lower than the limit for CO2 condensation. Strong warm layers were found in 13.5% of the profiles. They are present mainly at dawn and in the winter hemisphere, while the Northern dusks appear featureless. The data set mainly covers high latitudes around 60° and we derived some non-migrating tides. In the Southern winter hemisphere, we derived apparent zonal wavenumber-1 (WN-1) and WN-3 tidal components with a maximum amplitude of 10% and 5% at 63 km, respectively. | |
| dc.language | eng | |
| dc.title | Carbon Dioxide Retrievals From NOMAD-SO on ESA's ExoMars Trace Gas Orbiter and Temperature Profile Retrievals With the Hydrostatic Equilibrium Equation: 2. Temperature Variabilities in the Mesosphere at Mars Terminator | |
| dc.type | Article | |
| dc.subject.frascati | Physical sciences | |
| dc.audience | Scientific | |
| dc.source.title | Journal of Geophysical Research: Planets | |
| dc.source.volume | 128 | |
| dc.source.issue | 3 | |
| dc.source.page | e2022JE007279 | |
| Orfeo.peerreviewed | Yes | |
| dc.identifier.doi | 10.1029/2022JE007279 | |
| dc.identifier.scopus |
