Conference papers
SPICAM observations of thermospheric airglow during the 2007 dust storm
Abstract : In 2007 (Mars Year 28), Mars experienced a global dust storm. Previous studies have reported large changes in the H Lyman alpha coronal airglow during this period, corresponding to a large decrease in H escape fluxes during the declining phase of the dust storm. Here we present airglow measurements of CO Cameron band and CO+2 UV Doublet emission in the thermosphere from 2007 data gathered by the SPI-CAM (SPectroscopy for the Investigation of the Characteristics of the Atmosphere of Mars) instrument on Mars Express. During the dust storm period in late 2007, lower atmospheric temperatures were enhanced, pushing the thermosphere to higher altitudes. At the same time, more intense UV heating resulting from the perihelion passage of Mars resulted in extended upper atmospheric scale heights. We compare our retrievals and techniques to previous studies, which found no enhancement in thermospheric scale heights during this period.
Cited literature [1 references]
https://hal-insu.archives-ouvertes.fr/insu-01665724
Contributor : Catherine Cardon <>
Submitted on : Saturday, December 16, 2017 - 5:38:51 PM
Last modification on : Wednesday, April 14, 2021 - 3:39:29 AM
Contributor : Catherine Cardon <>
Submitted on : Saturday, December 16, 2017 - 5:38:51 PM
Last modification on : Wednesday, April 14, 2021 - 3:39:29 AM
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EPSC2017-376-1.pdf
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