Figure 9From: Study of Pc1 pearl structures observed at multi-point ground stations in Russia, Japan, and CanadaThe cross-correlation analysis in case 2. Cross-correlation between H component at ATH and D component at MGD obtained for upper envelope of Pc1 pearl structures at (a) 11:57:00 to 11:59:08 and (b) 12:02:00 to 12:04:08 UT on 11 April 2010.Back to article page