dropouts

Turner, D., Angelopoulos, V., Morley, S., Henderson, M., Reeves, G., Li, W., et al. (2014). On the cause and extent of outer radiation belt losses during the 30 September 2012 dropout event. Journal Of Geophysical Research: Space Physics, 119, 1530-1540. http://doi.org/10.1002/2013JA019446 (Original work published March 2014)
Zhang, X. -J., Li, W., Thorne, R., Angelopoulos, V., Ma, Q., Li, J., et al. (2016). Physical mechanism causing rapid changes in ultrarelativistic electron pitch angle distributions right after a shock arrival: Evaluation of an electron dropout event. Journal Of Geophysical Research: Space Physics. http://doi.org/10.1002/2016JA022517 (Original work published September 2016)