Journal cover Journal topic
Annales Geophysicae An open-access journal of the European Geosciences Union
Ann. Geophys., 35, 493-503, 2017
https://doi.org/10.5194/angeo-35-493-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Regular paper
28 Mar 2017
Variations in energy, flux, and brightness of pulsating aurora measured at high time resolution
Hanna Dahlgren et al.

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Short summary
Pulsating aurora are ubiquitous events that constitute a large amount of energy transfer to the ionosphere. Still there are unsolved issues regarding their formation. Using high-resolution optical and radar data, we find that it is the flux of high-energy electrons that get reduced during the OFF period of the pulsations. We also report on dips in brightness at the transition between ON and OFF, and asymmetric rise and fall times, which may have implications for understanding the pulsations.
Pulsating aurora are ubiquitous events that constitute a large amount of energy transfer to the...
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