Fig. 5.From: Hodograph method to estimate the latitudinal profile of the field-line resonance frequency using the data from two ground magnetometersShows the complex-number ratio R o (Eq. (21)) calculated from the data shown in Fig. 4. The model hodograph R mm (Eq. (25)) is best-fitted to the asterisk-and-circle data points, which correspond to the data points between the two dashed lines in Fig. 4. See text for more details.Back to article page