Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 40, issue 4
Articles | Volume 40, issue 4
https://doi.org/10.5194/angeo-40-475-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-40-475-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 40, issue 4
Regular paper
 | 
12 Jul 2022
Regular paper |  | 12 Jul 2022

Reconstruction of precipitating electrons and three-dimensional structure of a pulsating auroral patch from monochromatic auroral images obtained from multiple observation points

Mizuki Fukizawa, Takeshi Sakanoi, Yoshimasa Tanaka, Yasunobu Ogawa, Keisuke Hosokawa, Björn Gustavsson, Kirsti Kauristie, Alexander Kozlovsky, Tero Raita, Urban Brändström, and Tima Sergienko

Data sets

Watec observation database in NIPR Y. Ogawa http://pc115.seg20.nipr.ac.jp/www/optical/watec/skb/awi/rawdata/

EISCAT database in NIPR Y. Ogawa http://pc115.seg20.nipr.ac.jp/www/eiscatdata/

Subset of the MIRACLE emCCD all-sky camera data at 427.8 nm from ABK and KIL on 18 Feb 2018 00-02 UT Tero Raita and Kirsti Kauristie https://doi.org/10.23729/e86df44b-8dad-44e5-89f3-4bea0d3d1236

Video supplement

Movie A1 Mizuki Fukizawa https://doi.org/10.5446/57558

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Short summary
The pulsating auroral generation mechanism has been investigated by observing precipitating electrons using rockets or satellites. However, it is difficult for such observations to distinguish temporal changes from spatial ones. In this study, we reconstructed the horizontal 2-D distribution of precipitating electrons using only auroral images. The 3-D aurora structure was also reconstructed. We found that there were both spatial and temporal changes in the precipitating electron energy.
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