Articles | Volume 42, issue 1
https://doi.org/10.5194/angeo-42-229-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-42-229-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Regular paper
| Highlight paper
| 
04 Jun 2024
Regular paper | Highlight paper |
| 04 Jun 2024
| 04 Jun 2024
Does high-latitude ionospheric electrodynamics exhibit hemispheric mirror symmetry?
Department of Physics and Technology, University of Bergen, Bergen, Norway
Heikki Vanhamäki
Space Physics and Astronomy Research Unit, University of Oulu, Oulu, Finland
Karl Magnus Laundal
Department of Physics and Technology, University of Bergen, Bergen, Norway
Jone Peter Reistad
Department of Physics and Technology, University of Bergen, Bergen, Norway
Johnathan K. Burchill
Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada
Levan Lomidze
Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada
David J. Knudsen
Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada
Michael Madelaire
Department of Physics and Technology, University of Bergen, Bergen, Norway
Habtamu Tesfaw
Space Physics and Astronomy Research Unit, University of Oulu, Oulu, Finland
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Editor-in-chief
This paper presents a new set of empirical models for describing variations in ionosphere-thermosphere electrodynamics in both hemispheres, as a function of season as well as prevailing solar wind and interplanetary magnetic field conditions. The models are based on combined measurements of magnetic field perturbations and ionospheric plasma drift made by the Swarm and CHAMP satellites. The chief advantage of these models is that they are the first empirical models of high-latitude ionospheric electrodynamics quantities in both hemispheres that are consistently derived. The model codes are open source and publicly available.
This paper presents a new set of empirical models for describing variations in...
Short summary
In studies of the Earth's ionosphere, a hot topic is how to estimate ionospheric conductivity. This is hard to do for a variety of reasons that mostly amount to a lack of measurements. In this study we use satellite measurements to estimate electromagnetic work and ionospheric conductances in both hemispheres. We identify where our model estimates are inconsistent with laws of physics, which partially solves a previous problem with unrealistic predictions of ionospheric conductances.
In studies of the Earth's ionosphere, a hot topic is how to estimate ionospheric conductivity....
