Martian Aerosols in the 3µm Spectral Range, During and Outside the 2018 Global Dust Event Based on the TGO/ACS-MIR Channel

Aurelien Stcherbinine; M. Vincendon; Franck Montmessin; M. J. Wolff; O. Korablev; A. Fedorova; Alexander Trokhimovskiy; A. Shakun; N. Ignatiev; D. Belyaev; M. Luginin

Conference papers

Martian Aerosols in the 3µm Spectral Range, During and Outside the 2018 Global Dust Event Based on the TGO/ACS-MIR Channel

Aurelien Stcherbinine ^{1, 2} M. Vincendon ² Franck Montmessin ¹ M. J. Wolff ³ O. Korablev ⁴ A. Fedorova ⁴ Alexander Trokhimovskiy ⁴ A. Shakun ⁴ N. Ignatiev ⁴ D. Belyaev ⁴ M. Luginin ⁴

1 IMPEC - LATMOS

LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales

2 IAS - Institut d'astrophysique spatiale

3 SSI - Space Science Institute [Boulder]

4 IKI - Space Research Institute of the Russian Academy of Sciences

Abstract : We present vertical profiles of water ice clouds in the Martian atmosphere, and the effects of the last global dust storm on them. To this end, we used the data produced by the ACS MIR channel during solar occultations that senses the atmospheric opacity in the 3 μm spectral range. We observe very rapid changes in the aerosol profile associated with the onset of the global dust event, initiating water ice cloud layer formation above 80 km in a period of days or so, sug- gesting a sudden intensification in the circulation re- gime. More work is needed to extract more infor- mation, such as particle size, yet this preliminary study already provides some insightful data about water ice during the 2018 global dust storm.

Document type :

Conference papers

Domain :

Sciences of the Universe [physics]

Complete list of metadatas

https://hal-insu.archives-ouvertes.fr/insu-02293845
Contributor : Catherine Cardon <>
Submitted on : Sunday, September 22, 2019 - 1:51:15 PM
Last modification on : Wednesday, September 16, 2020 - 5:02:27 PM

Martian Aerosols in the 3µm Spectral Range, During and Outside the 2018 Global Dust Event Based on the TGO/ACS-MIR Channel

Identifiers

Collections

Citation

Export

Metrics

37

Martian Aerosols in the 3µm Spectral Range, During and Outside the 2018 Global Dust Event Based on the TGO/ACS-MIR Channel

Identifiers

Collections

Citation

Export

Share

Metrics

37