Preprints
https://doi.org/10.5194/angeo-2023-32
© Author(s) 2023. 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-2023-32
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
13 Nov 2023
| 13 Nov 2023
Status: this preprint is currently under review for the journal ANGEO.
Are drivers of northern lights in the ionosphere?
Office Geophysik, Ogoori, 838-0141, Japan
Abstract. It is reported that transverse electric fields penetrating the ionosphere either from distant space or from the upper atmosphere produce charge separations along the field lines by building up positive charges immediately above the ionosphere. Those parallel electric fields produced by the charge separation deserve auroral driver. This paper discusses why and how these internal drivers in the polar ionosphere are applied for the formation of spiral auroras in the dusk sector.
How to cite. Saka, O.: Are drivers of northern lights in the ionosphere?, Ann. Geophys. Discuss. [preprint], https://doi.org/10.5194/angeo-2023-32, in review, 2023.
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Osuke Saka
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Osuke Saka
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Short summary
Auroral spirals known as northern lights are a spectacular light show in the polar night sky. Internal processes in the polar ionosphere initiate northern lights by producing charge separations along the field lines. Parallel electric fields generated above the ionosphere by charge separations are steady-state electric fields. They occasionally discharge to produce northern lights, analogous to lightning flash in a thunderstorm.
Auroral spirals known as northern lights are a spectacular light show in the polar night sky....