Modulation

Colpitts, C., Cattell, C., Engebretson, M., Broughton, M., Tian, S., Wygant, J., et al. (2016). Van Allen Probes observations of cross-scale coupling between electromagnetic ion cyclotron waves and higher-frequency wave modes. Geophysical Research Letters. http://doi.org/10.1002/2016GL071566 (Original work published November 2016)
Liu, H., Zong, Q. -G., Zhou, X. -Z., Fu, S. . Y., Rankin, R., Wang, L. -H., et al. (2016). Compressional ULF wave modulation of energetic particles in the inner magnetosphere. Journal Of Geophysical Research: Space Physics. http://doi.org/10.1002/2016JA022706 (Original work published May 2016)