Evolution of asymmetrically displaced footpoints during substorms

Anders Ohma1, Nikolai Ostgaard1, Karl Laundal1, Jone Peter Reistad1, Paul Tenfjord2, Kristian Snekvik2 and Matthew O. Fillingim3, (1)University of Bergen, Department of Physics and Technology, Bergen, Norway, (2)University of Bergen, Birkeland Centre for Space Science, Bergen, Norway, (3)Space Sciences Laboratory, Berkeley, CA, United States