Poleward moving auroral forms (PMAFs) revisited: responses of aurorae, plasma convection and Birkeland currents in the pre- and postnoon sectors under positive and negative IMF B y conditions

• Published in: Annales Geophysicae
• Main Authors: P. E. Sandholt, C. J. Farrugia
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2007
• Subjects: Science; Q; Physics; QC1-999; Geophysics. Cosmic physics; QC801-809; Birkeland; Ny-Ålesund; Svalbard; Ny Ålesund
• Online Access: https://doi.org/10.5194/angeo-25-1629-2007; https://doaj.org/article/add97b4adcca44d78ef5ad3937f77be0

Using five case studies, we investigate the dynamical evolution of dayside auroral precipitation in relation to plasma convection, classifying it by the IMF B y component and position with respect to noon. Auroral observations were made by meridian scanning photometers (MSPs) and an all-sky camera (...