EMIC waves observed with Cluster
EMIC waves, observed by one of the Cluster satellites on 4 September 2005, are encircled in black on each of these three panels.
This image is from Yuan, Z., X. Deng, X. Lin, Y. Pang, M. Zhou, P. M. E. Décréau, J. G. Trotignon, E. Lucek, H. U. Frey, and J. Wang, "Link between EMIC waves in a plasmaspheric plume and a detached sub-auroral proton arc with observations of Cluster and IMAGE satellites," Geophys. Res. Lett., 37, L07108, 2010. DOI:10.1029/2010GL042711. Copyright 2010 American Geophysical Union.