Fig. 1From: The AUTUMNX magnetometer meridian chain in Québec, CanadaThe AUTUMN magnetometer array in western Canada. AUTUMN stations are indicated with a yellow dot. NRCan station Meanook (red dot) is very close to AUTUMNX station Athabasca. 60, 70, and 80 ° geomagnetic latitude lines are marked with yellow linesBack to article page