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ANGEO | Articles | Volume 36, issue 1
Ann. Geophys., 36, 59–69, 2018
https://doi.org/10.5194/angeo-36-59-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Ann. Geophys., 36, 59–69, 2018
https://doi.org/10.5194/angeo-36-59-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular paper 18 Jan 2018

Regular paper | 18 Jan 2018

Pulsating aurora and cosmic noise absorption associated with growth-phase arcs

Derek McKay et al.
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Cited articles  
Brekke, A.: On the correlation between pulsating aurora and cosmic radio noise absorption, Planet. Space Sci., 19, 891–896, https://doi.org/10.1016/0032-0633(71)90140-1, 1971. a
Fukunishi, H.: Dynamic relationship between proton and electron auroral substorms, J. Geophys. Res., 80, 553–574, https://doi.org/10.1029/JA080i004p00553, 1975. a
Grandin, M., Kero, A., Partamies, N., McKay, D., Whiter, D., Kozlovsky, A., and Miyoshi, Y.: Observation of pulsating aurora signatures in cosmic noise absorption data, Geophys. Res. Lett., 44, 5292–5300, https://doi.org/10.1002/2017GL073901, 2017. a, b
Johansen, O. E.: Variations in energy spectrum of auroral electrons detected by simultaneous observation with photometer and riometer, Planet Space Sci., 13, 225–235, https://doi.org/10.1016/0032-0633(65)90072-3, 1965. a
Jussila, J. R. T., Aikio, A. T., Shalimov, S., and Marple, S. R.: Cosmic radio noise absorption events associated with equatorward drifting arcs during a substorm growth phase, Ann. Geophys., 22, 1675–1686, https://doi.org/10.5194/angeo-22-1675-2004, 2004. a, b, c, d, e
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This study used the Kilpisjärvi Atmospheric Imaging Receiver Array (KAIRA) and Finnish Meteorological Institute's all-sky camera. It looked at radio absorption and optical emission of the long east–west band of aurora (known as the growth phase arc), which forms at the start of substorms. The study found that radio absorption was consistently south of the bright auroral arc and that optical pulsating aurora occurs in the boundary region between the radio absorption zone and the bright arc.
This study used the Kilpisjärvi Atmospheric Imaging Receiver Array (KAIRA) and Finnish...
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