Fig. 5.From: Wavelet-based multiscale analysis of geomagnetic disturbanceThree scalograms revealing the energy distribution of the wavelet coefficients of the horizontal component. The time series start on 1 October, 2003, and comprise storms from October and November 2003. The three observatories are CLF (top), HER (middle) and THL (bottom). The color scale reflects the increasing energy from blue to violet.Back to article page