Fig. 1.From: Hodograph method to estimate the latitudinal profile of the field-line resonance frequency using the data from two ground magnetometersIllustrates the ζ (dimensionless latitudinal distance) profiles of the amplitude and phase of the magnetic field Fourier component Hm, caused by the field line resonance (FLR), as expressed by Eq. (1). The model parameters hR is set to 1. See text for more details.Back to article page