Articles | Volume 39, issue 2
Ann. Geophys., 39, 277–288, 2021
https://doi.org/10.5194/angeo-39-277-2021

Special issue: Special Issue on the joint 19th International EISCAT Symposium...

Ann. Geophys., 39, 277–288, 2021
https://doi.org/10.5194/angeo-39-277-2021

Regular paper 04 Mar 2021

Regular paper | 04 Mar 2021

Characteristics of fragmented aurora-like emissions (FAEs) observed on Svalbard

Joshua Dreyer et al.

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Short summary
Small-scale auroral features are still being discovered and are not well understood. Where aurorae are caused by particle precipitation, the newly reported fragmented aurora-like emissions (FAEs) seem to be locally generated in the ionosphere (hence, aurora-like). We analyse data from multiple instruments located near Longyearbyen to derive their main characteristics. They seem to occur as two types in a narrow altitude region (individually or in regularly spaced groups).