Skip to Main content Skip to Navigation
Journal articles

Vertical profiles of dust and ozone in the martian atmosphere deduced from solar occultation measurements

Abstract : THE most sensitive parameter in a chemical model of the martian atmosphere is the vertical profile of ozone concentration, which has not previously been measured. Solar occultation measurements performed on the Phobos 2 spacecraft in martian orbit have provided us with such profiles, together with evidence for the existence of particles of small dimensions (0.1-μm diameter) in the 50- to 20-kilometre altitude range. These particles could be H2O ice at the top of the observed range and dust at lower altitudes, possibly haematite, with a wide range of dimensions (down to nanocrystal size), dispersed in some other material (H2O ice or silicates, for example). The relatively large number of these solid particles opens up the possibility of heterogeneous chemistry having a major role in the atmosphere of Mars.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03581934
Contributor : Catherine Cardon Connect in order to contact the contributor
Submitted on : Sunday, February 20, 2022 - 8:18:15 PM
Last modification on : Friday, May 6, 2022 - 2:54:41 PM

Links full text

Identifiers

Citation

Jacques-Emile Blamont, Eric Chassefière, Jean-Pierre Goutail, Bernard Mege, Manuel Nunes-Pinharanda, et al.. Vertical profiles of dust and ozone in the martian atmosphere deduced from solar occultation measurements. Nature, Nature Publishing Group, 1989, 341 (6243), pp.600-603. ⟨10.1038/341600a0⟩. ⟨insu-03581934⟩

Share

Metrics

Record views

7