Inward radial diffusion

Zhao, H., Baker, D., Li, X., Jaynes, A., & Kanekal, S. (2018). The Acceleration of Ultrarelativistic Electrons During a Small to Moderate Storm of 21 April 2017. Geophysical Research Letters. (Original work published June 2018)
Hua, M., Li, W., Ma, Q., Ni, B., Nishimura, Y., Shen, X. -C., & Li, H. (2019). Modeling the Electron Flux Enhancement and Butterfly Pitch Angle Distributions on L Shells <2.5. Geophysical Research Letters, 46, 10967-10976. (Original work published September 2019)
Zhao, H., Baker, D. N., Li, X., Malaspina, D. M., Jaynes, A. N., & Kanekal, S. G. (2019). On the Acceleration Mechanism of Ultrarelativistic Electrons in the Center of the Outer Radiation Belt: A Statistical Study. Journal Of Geophysical Research: Space Physics. (Original work published October 2019)