storms and substorms

Sarris, T., & Li, X. (2016). Calculating ultra-low-frequency wave power of the compressional magnetic field vs. L and time: multi-spacecraft analysis using the Van Allen probes, THEMIS and GOES. Annales Geophysicae, 34, 565-571. http://doi.org/10.5194/angeo-34-565-2016 (Original work published June 2016)