Modeling the Martian HDO cycle with a Global Climate Model during the “dusty” season
Résumé
The D/H ratio measured in the Martian atmosphere gives an estimation of the planet’s water escape
rate. We present here a global circulation model including the water isotope HDO and the main
physical processes of fractionation. Modeling the D/H cycle accompanies the recent measurements
from the ACS spectrometer onboard the orbiter TGO. The comparison between the model outputs
and the TGO/ACS observations reveal some discrepancies, in particular during the second half of the
martian year, when the escape is supposed to be the most efficient. The present work aims at
studying these main differences.
Domaines
Planète et Univers [physics]Origine | Fichiers produits par l'(les) auteur(s) |
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