Interhemispheric Comparisons of Large Nighttime Magnetic Perturbation Events Relevant to GICs

• Published in: Journal of Geophysical Research: Space Physics
• Main Authors: Engebretson, Mark J, Kirkevold, Kathryn R, Steinmetz, Erik S, Pilipenko, Viacheslav A, Moldwin, Mark B, McCuen, Brett A, Clauer, C R, Hartinger, Michael D, Coyle, Shane, Opgenoorth, Herman, Schillings, Audrey, Willer, Anna N, Edwards, Thom R, Boteler, David H, Gerrard, Andy J, Freeman, Mervyn P, Rose, Michael C
• Format: Text
• Language: unknown
• Published: Idun 2020
• Subjects: Physics; Arctic; Canada; Greenland; South Pole; Pangnirtung; Antarc*; Antarctica; Iqaluit; South pole
• Online Access: https://idun.augsburg.edu/faculty_scholarship/37; https://doi.org/10.1029/2020JA028128; https://idun.augsburg.edu/context/faculty_scholarship/article/1040/viewcontent/jgra_Engebretson_2020_2020JA028128.pdf

Nearly all studies of impulsive magnetic perturbation events (MPEs) with large magnetic field variability (dB/dt) that can produce dangerous geomagnetically induced currents (GICs) have used data from the Northern Hemisphere. Here we present details of four large‐amplitude MPE events (|ΔBx| > 900...