Articles | Volume 40, issue 5
Ann. Geophys., 40, 605–618, 2022
https://doi.org/10.5194/angeo-40-605-2022
Ann. Geophys., 40, 605–618, 2022
https://doi.org/10.5194/angeo-40-605-2022
Regular paper
12 Oct 2022
Regular paper | 12 Oct 2022

Magnetic local time (MLT) dependence of auroral peak emission height and morphology

Noora Partamies et al.

Related authors

Simulated seasonal impact on middle atmospheric ozone from high-energy electron precipitation related to pulsating aurorae
Pekka T. Verronen, Antti Kero, Noora Partamies, Monika E. Szeląg, Shin-Ichiro Oyama, Yoshizumi Miyoshi, and Esa Turunen
Ann. Geophys., 39, 883–897, https://doi.org/10.5194/angeo-39-883-2021,https://doi.org/10.5194/angeo-39-883-2021, 2021
Short summary
Characteristics of fragmented aurora-like emissions (FAEs) observed on Svalbard
Joshua Dreyer, Noora Partamies, Daniel Whiter, Pål G. Ellingsen, Lisa Baddeley, and Stephan C. Buchert
Ann. Geophys., 39, 277–288, https://doi.org/10.5194/angeo-39-277-2021,https://doi.org/10.5194/angeo-39-277-2021, 2021
Short summary
D-region impact area of energetic electron precipitation during pulsating aurora
Emma Bland, Fasil Tesema, and Noora Partamies
Ann. Geophys., 39, 135–149, https://doi.org/10.5194/angeo-39-135-2021,https://doi.org/10.5194/angeo-39-135-2021, 2021
Short summary
Electron precipitation characteristics during isolated, compound, and multi-night substorm events
Noora Partamies, Fasil Tesema, Emma Bland, Erkka Heino, Hilde Nesse Tyssøy, and Erlend Kallelid
Ann. Geophys., 39, 69–83, https://doi.org/10.5194/angeo-39-69-2021,https://doi.org/10.5194/angeo-39-69-2021, 2021
Short summary
Observations of precipitation energies during different types of pulsating aurora
Fasil Tesema, Noora Partamies, Hilde Nesse Tyssøy, and Derek McKay
Ann. Geophys., 38, 1191–1202, https://doi.org/10.5194/angeo-38-1191-2020,https://doi.org/10.5194/angeo-38-1191-2020, 2020
Short summary

Cited articles

Aikio, A.T., Vanhamäki, H., Workayehu, A.B., Virtanen, I.I., Kauristie, K., Juusola, L., Buchert, A., and Knudsen, D.: Swarm satellite and EISCAT radar observations of a plasma flow channel in the auroral oval near magnetic midnight, J. Geophys. Res., 123, 5140–5158, https://doi.org/10.1029/2018JA025409, 2018. a
Akasofu, S.-I.: Recent progress in studies of DMSP auroral photographs, Space Sci. Rev., 19, 169–215, 1976. a, b
Bland, E. C., Partamies, N., Heino, E., Yukimatu, A. S., and Miyaoka, H.: Energetic electron precipitation occurrence rates determined using the Syowa East SuperDARN Radar, J. Geophys. Res., 124, 6253–6265, https://doi.org/10.1029/2018JA026437, 2019. a
Davis, T. N. and Sugiura, M.: Auroral electrojet activity index AE and its universal time variations, J. Geophys. Res., 71, 785–801, https://doi.org/10.1029/JZ071i003p00785, 1966. a
Frey, H.U., Han, D., Kataoka, R., Lessard, M. R., Milan, S. E., Nishimura, Y., Strangeway, R. J., and Zou, Y.: Dayside Aurora, Space Sci. Rev., 215, 51, https://doi.org/10.1007/s11214-019-0617-7, 2019. a, b
Download
Short summary
We investigate the local time behaviour of auroral structures and emission height. Data are collected from the Fennoscandian Lapland and Svalbard latitutes from 7 identical auroral all-sky cameras over about 1 solar cycle. The typical peak emission height of the green aurora varies from 110 km on the nightside to about 118 km in the morning over Lapland but stays systematically higher over Svalbard. During fast solar wind, nightside emission heights are 5 km lower than during slow solar wind.