Fig. 6From: Recent geomagnetic secular variation from Swarm and ground observatories as estimated in the CHAOS-6 geomagnetic field modelFit of CHAOS-6 to secular variation of intensity (\({\text {d}}F/{\text {d}}t\)) at example ground observatories. Top College station, Alaska (left); Niemengk, Germany (middle); and Novosibirsk, Russia (right); bottom Kourou, French Guiana (left); Hermanus, South Africa (middle); and Learmouth, Australia (right)Back to article page