Fig. 1.From: Automatic detection of sudden commencements using neural networksExample of one candidate rejected because there were only two (of five) low observatories presenting a slope greater than 3 nT/min: ABG 2.7 nT/min; HON 2.4 nT/min; KNY 3.3 nT/min; MBO 3.3 nT/min; SJG 1.6 nT/min.Back to article page