enhancements

Forsyth, C., Rae, I., Murphy, K., Freeman, M., Huang, C. -L., Spence, H., et al. (2016). What effect do substorms have on the content of the radiation belts?. Journal Of Geophysical Research: Space Physics. http://doi.org/10.1002/2016JA022620 (Original work published June 2016)
Khoo, L., Li, X., Zhao, H., Sarris, T., Xiang, Z., Zhang, K., et al. (2018). On the Initial Enhancement of Energetic Electrons and the Innermost Plasmapause Locations: CME-Driven Storm Periods. Journal Of Geophysical Research: Space Physics. http://doi.org/10.1029/2018JA026074 (Original work published October 2018)