Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 39, issue 5
Articles | Volume 39, issue 5
https://doi.org/10.5194/angeo-39-795-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/angeo-39-795-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 39, issue 5
Regular paper
 | 
09 Sep 2021
Regular paper |  | 09 Sep 2021

On the relationship of energetic particle precipitation and mesopause temperature

Florine Enengl, Noora Partamies, Nickolay Ivchenko, and Lisa Baddeley

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Latest update: 30 Jun 2025
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Short summary
Energetic particle precipitation has the potential to change the neutral atmospheric temperature at the bottom of the ionosphere. We have searched for events and investigated a possible correlation between lower-ionosphere electron density enhancements and simultaneous neutral temperature changes. Six of the 10 analysed events are associated with a temperature decrease of 10–20K. The events change the chemical composition in the mesosphere, and the temperatures are probed at lower altitudes.
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Special Issue on the joint 19th International EISCAT Symposium...