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A new detailed plasma‐chemistry model for the potential impact of blue jet streamers on atmospheric chemistry

Abstract : detailed ion–neutral chemistry model named MiPO‐Streamer model has been developed to simulate the impact of blue jet streamers on stratospheric chemistry. It is based on the MiPLaSMO model (Microphysical and Photochemical Lagrangian Stratospheric Model of Ozone) widely used over the last 20 years to interpret balloon and satellite measurements associated with stratospheric ozone. In this study, instead of using a reduced electric field with constant value during blue jet streamer discharge process, we used a time‐dependent reduced electric field coming from an explicit streamer model. The simulations are performed on day‐time/night‐time and in two‐day long‐term duration at 27 km where the catalytic cycle of NOx is the most efficient to destroy ozone. Among 117 species considered, we put the focus on nitrogen, oxygen, chlorine and bromine species, and ozone perturbation. The model results indicate that the densities of neutral species through an electrodynamic streamer simulation show an impact of a factor 2 as compared to the pulse‐based simulation at 27 km.
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Submitted on : Monday, March 30, 2020 - 2:23:25 PM
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Chen Xu, Nathalie Huret, Matthieu Garnung, Sébastien Celestin. A new detailed plasma‐chemistry model for the potential impact of blue jet streamers on atmospheric chemistry. Journal of Geophysical Research: Atmospheres, American Geophysical Union, 2020, ⟨10.1029/2019JD031789⟩. ⟨insu-02504762⟩



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