magnetic cloud

Zhang, J. -C., Kistler, L., Spence, H., Wolf, R., Reeves, G., Skoug, R., et al. (2015). \textquotedblleftTrunk-like\textquotedblright heavy ion structures observed by the Van Allen Probes. Journal Of Geophysical Research: Space Physics. http://doi.org/10.1002/2015JA021822 (Original work published October 2015)