Three dimensional exosphere model : multispecies thermal and non-thermal model

Details Three dimensional exosphere model : multispecies thermal and non-thermal model Three dimensional exosphere model : multispecies thermal and non-thermal model

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf..812y&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.812

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Scientific paper

3-D Mars' exosphere models of four seasons are developed in this study. Thermal exosphere of oxygen, CO2, and CO is derived from 3-D Chamberlain model based on the Martian Global Circulation Model (GCM). Non-thermal atomic oxygen exosphere is obtained by 3-D Monte-Carlo simulation. Production of hot oxygen is due to Dissociative Recombination (DR) of O2 +, and sputtering is neglected in this study. The profiles of O2 + and background atmosphere are also given by MGCM model. Thermal components of exosphere show the strong asymmetry of dayside-nightside, and complicated structures, which depend largely on the seasons. On the other hand, non-thermal profiles depend only on the solar zenith angle(SZA) though there are also strong asymmetry between day and nightside. From the comparison between thermal and non-thermal oxygen, the thermal oxygen is the main component below ~700km.

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