R1 and R2 currents

Ohtani, S., Motoba, T., Gkioulidou, M., Takahashi, K., & Singer, H. (2018). Spatial Development of the Dipolarization Region in the Inner Magnetosphere. Journal Of Geophysical Research: Space Physics. http://doi.org/10.1029/2018JA025443 (Original work published June 2018)