Fig. 6From: On the feasibility of routine baseline improvement in processing of geomagnetic observatory dataComparison between the ΔF, obtained from the definitive data accepted by INTERMAGNET (Gsrc, blue), and the ΔF curves obtained using the new method from hourly (G nhour , green) and daily (G nday , red) baseline values for the period from February 20 to October 1, 2015Back to article page