Search Publications
Strong Variability of Martian Water Ice Clouds During Dust Storms Revealed From ExoMars Trace Gas Orbiter/NOMAD
Vandaele, Ann Carine; Aoki, Shohei; Thomas, Ian +12 more
Observations of water ice clouds and aerosols on Mars can provide important insights into the complexity of the water cycle. Recent observations have indicated an important link between dust activity and the water cycle, as intense dust activity can significantly raise the hygropause, and subsequently increase the escape of water after dissociatio…
Properties of Water Ice and Dust Particles in the Atmosphere of Mars During the 2018 Global Dust Storm as Inferred From the Atmospheric Chemistry Suite
Grigoriev, A.; Montmessin, F.; Fedorova, A. +6 more
The properties of Martian aerosols are an integral part of the planetary climatology. Global dust storms (GDS) significantly alter spatial and vertical distributions of dust and water ice aerosols and their microphysical properties. We explored the 2018/Martian year 34 GDS with the Atmospheric Chemistry Suite instrument onboard the ESA-Roscosmos T…
Martian Water Ice Clouds During the 2018 Global Dust Storm as Observed by the ACS-MIR Channel Onboard the Trace Gas Orbiter
Montmessin, F.; Fedorova, A.; Korablev, O. +8 more
The Atmospheric Chemistry Suite (ACS) instrument onboard the ExoMars Trace Gas Orbiter (TGO) European Space Agency-Roscosmos mission began science operations in March 2018. ACS Mid-InfraRed (MIR) channel notably provides solar occultation observations of the Martian atmosphere in the 2.3- to 4.2-µ m spectral range. Here, we use these observa…
Studies of the 2018/Mars Year 34 Planet-Encircling Dust Storm
Guzewich, S. D.; Fedorova, A. A.; Kahre, M. A. +1 more
Mars' planet-encircling or global dust storms (GDSs) are an iconic and enigmatic feature of the Red Planet. Occurring every few Mars Years (MYs), on average, they are a stochastic process in the otherwise largely repeatable annual cycle of martian weather. In 2018 (MY 34 in the calendar of Clancy et al. [2000],
Photochemistry of Methane and Ethane in the Martian Atmosphere
Taysum, Benjamin M.; Palmer, Paul I.
We develop an existing 1-D photochemistry model to include a comprehensive description of organic chemistry on Mars that includes the oxidation products of methane (CH4) and ethane (C2H6),a longer-chain hydrocarbon that can be used to differentiate between abiotic and biotic surface releases of CH4. We f…