Fig. 11From: NetPICOmag: A low-cost networked magnetometer and its applicationsX (black lines), Y (red lines), Z (blue lines) magnetic perturbations at (a) College (CMO), (b) Fort St. John (FSJ), and (c) Grande Prairie (GPR) on April 5 2010. Panels (b) and (c) are in local geomagnetic coordinates. GPR and FSJ are closely spaced yet show significant differences, whose origins are discussed in the text.Back to article page