Simulation Results for Effects of Global and Regional Dust Storms on the Martian Hot O Corona and Photochemical Loss

Published: 30 Dec 2019 | Version 1 | DOI: 10.17632/c85kp386fd.1
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Description of this data

We examine here for the first time the effects of both global and regional dust storms on the formation of the Martian hot O corona and associated photochemical loss of O. Our study is conducted by utilizing our integrated model framework, which couples our Martian hot O corona model with a multifluid magnetohydrodynamic model for Mars for the dusty and clear atmospheric condition cases. We present our results with the most up-to-date cross sections for the O(3P)-CO2 collisions. The main effect of dust storms on the ionosphere is the upward shift of the ionosphere on the dayside, which results in an increase in production of hot O at all altitudes above the ionospheric peak. However, the dust-induced inflation of the neutral upper atmosphere results in an enhancement in collisional loss of hot O and thus effectively suppresses the hot O density, reducing the global photochemical loss rate by ~28% for the global dust storm scenario. The relative density structure of the hot O corona does not show any significant changes, while its magnitude decreases at all altitudes.

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Latest version

  • Version 1

    2019-12-30

    Published: 2019-12-30

    DOI: 10.17632/c85kp386fd.1

    Cite this dataset

    Lee, Yuni (2019), “Simulation Results for Effects of Global and Regional Dust Storms on the Martian Hot O Corona and Photochemical Loss”, Mendeley Data, v1 http://dx.doi.org/10.17632/c85kp386fd.1

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Planet, Upper Atmosphere, Mars

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