Reference : CO2 variations in the Martian lower thermosphere from IUVS-MAVEN airglow observations.
Scientific congresses and symposiums : Unpublished conference/Abstract
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/228155
CO2 variations in the Martian lower thermosphere from IUVS-MAVEN airglow observations.
English
Gkouvelis, Leonardos []
Gérard, Jean-Claude mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
Ritter, Birgit mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Hubert, Benoît mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Jain, S. []
Schneider, N. []
17-Sep-2018
2
No
No
International
European Planetary Society Congress
16-21 septembre 2018
Copernicus
Berlin
Allemagne
[en] Mars ; atmospheres dynamics ; Ultraviolet ; MAVEN ; carbon dioxide ; pressure level
[en] IUVS-MAVEN limb observations have been performed since 2014. We have analyzed almost four years of observations focusing on the O(1S) 297.2 nm dayglow emission line. We have developed an automatic methodology to retrieve the CO2 column densities near 80 km, a region difficult to probe by other techniques. We present nearly two Martian years of observations of pressure variations at different latitudes and comparisons withMCD model predictions. Generally, the best
agreement is reached following scaling down of the MCD values from 0.3 to 0.8 to fit the observations. This result was previously expected on the basis of model comparisons with ultraviolet occultation measurements.
Space sciences, Technologies and Astrophysics Research - STAR
PRODEX - ESA
Researchers ; Professionals
http://hdl.handle.net/2268/228155

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