Reconstruction of electron precipitation spectra at the top of the upper atmosphere using 427.8 nm auroral imagesElisa Robert, Mathieu Barthelemy, Gael Cessateur, Angélique Woelfflé, Hervé Lamy, Simon Bouriat, Magnar Gullikstad Johnsen, Urban Brändström and Lionel BireeJ. Space Weather Space Clim., 13 (2023) 30DOI: https://doi.org/10.1051/swsc/2023028