Figure 7
High time resolution polarization parameters and PSD for QP emission on 19 February. (a-d) One-min high time resolution plot showing the quasi-periodic and chorus elements of a quasi-periodic chorus emission observed at ATH on 19 February 2012 at 18:15 UT. Blue and red arrows indicate the half-gyrofrequency calculated at the magnetospheric equatorial plane of the L-shell of ATH, using T96 and T01 models, respectively.