Multistage substorm expansion: Auroral dynamics in relation to plasma sheet particle injection, precipitation, and plasma convection

• Published in: Journal of Geophysical Research
• Main Authors: Sandholt, Per Even, Farrugia, Charlie J., Lester, Mark, Cowley, Stan, Milan, Steve, Denig, William F., Lybekk, Bjorn, Trondsen, Espen, Vorobjev, Vjacheslav
• Format: Text
• Language: unknown
• Published: University of New Hampshire Scholars' Repository 2002
• Subjects: Svalbard; Ny-Ålesund; Lovozero; Ny Ålesund
• Online Access: https://scholars.unh.edu/cmerg/257; https://doi.org/10.1029/2001JA900116

We present observations of the auroral expansions during two substorms, focusing on multistage intensifications and the morphology of the poleward boundary, and relate these auroral observations to the local plasma convection and plasma sheet dynamics. The observations are made by meridian scanning...