Atmospheric odd nitrogen response to electron forcing from a 6D magnetospheric hybrid-kinetic simulation

Häkkilä, Tuomas; Grandin, Maxime; Battarbee, Markus; Szeląg, Monika E.; Alho, Markku; Kotipalo, Leo; Kalakoski, Niilo; Verronen, Pekka T.; Palmroth, Minna

doi:https://doi.org/10.5194/angeo-43-217-2025

Articles | Volume 43, issue 1

https://doi.org/10.5194/angeo-43-217-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/angeo-43-217-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 43, issue 1

Regular paper

|

17 Apr 2025

Regular paper |

| 17 Apr 2025

Atmospheric odd nitrogen response to electron forcing from a 6D magnetospheric hybrid-kinetic simulation

Tuomas Häkkilä, Maxime Grandin, Markus Battarbee, Monika E. Szeląg, Markku Alho, Leo Kotipalo, Niilo Kalakoski, Pekka T. Verronen, and Minna Palmroth

Data sets

eVlasiator 3D run (eEGI-1506) with DMSP correction: Precipitating electron differential number flux data M. Grandin https://doi.org/10.57707/fmi-b2share.79a154a9959347d0829b0ab2e145499c

WACCM simulation data (VLAS, REF) for the manuscript "Atmospheric Nitrogen Oxide response to electron forcing from a 6D magnetospheric hybrid-kinetic simulation" by T. Häkkilä et. al. T. Häkkilä and M. Szelag https://doi.org/10.57707/fmi-b2share.f5adbf0738724045803a117f8b00f016

WACCM simulation data (KP0-KP5) in the Northern hemisphere for the manuscript "Atmospheric Nitrogen Oxide response to electron forcing from a 6D magnetospheric hybrid-kinetic simulation" by T. Häkkilä et. al. T. Häkkilä and M. Szelag https://doi.org/10.57707/fmi-b2share.684501221fc94e1691108ffe39934031

WACCM simulation data (KP0-KP5) in the Southern hemisphere for the manuscript "Atmospheric Nitrogen Oxide response to electron forcing from a 6D magnetospheric hybrid-kinetic simulation" by T. Häkkilä et. al. T. Häkkilä and M. Szelag https://doi.org/10.57707/fmi-b2share.d1b034eb72924fc2a7be0bd0ffe1ebe3

Model code and software

fmihpc/vlasiator: Vlasiator 5.3 Y. Pfau-Kempf et al. https://doi.org/10.5281/zenodo.10600112

fmihpc/vlasiator: eVlasiator 6D pre-release Y. Pfau-Kempf et al. https://doi.org/10.5281/zenodo.6642177

hakkila/waccm_iprmlt: IPRMLT T. Häkkilä https://doi.org/10.5281/zenodo.11397846

Short summary

We study the atmospheric impact of auroral electron precipitation through the novel combination of both magnetospheric modelling and atmospheric modelling. We first simulate fluxes of auroral electrons and then use these fluxes to model their atmospheric impact. We find an increase of more than 200 % in thermospheric odd nitrogen and a corresponding decrease in stratospheric ozone of around 0.8 %. The produced auroral electron precipitation is realistic and shows potential for future studies.