Modelling the Ionospheric Alfvén Resonator Harmonic Frequency Separation at Eskdalemuir, UK

Ionospheric Alfvén Resonances (IAR) have been observed in Eskdalemuir induction coil magnetometer data. In order to investigate the harmonic frequency separation, we have modelled the IAR using magnetic field strength and plasma mass density. We have used three models of electron density; the IRI, E-CHAIM and an adjusted IRI model using ionosonde data. We find that the IRI and E-CHAIM models perform best.