An image from the paper on deep ionospheric hole during SSW was used as the cover of the JGR-Space Physics V123 (9) published in Sept, 2018.
Goncharenko, L. P., Coster, A. J., Zhang, S.-R., Erickson, P. J., Benkevitch, L., Aponte, N., et al. (2018). Deep Ionospheric Hole Created by Sudden Stratospheric Warming in the Nighttime Ionosphere. Journal of Geophysical Research: Space Physics. https://doi.org/10.1029/2018ja025541
