Fig. 7.From: Hodograph method to estimate the latitudinal profile of the field-line resonance frequency using the data from two ground magnetometersSimilar to Fig. 6, but for each frequency f of FFT, illustrates the locations of the observed data point R oc (f) (small circles, the same as in Fig. 6) and the best-fitted model value R m (f) (diamonds). See text for more details.Back to article page