2 papers
physics.space-ph2016
A new technique for determining Substorm Onsets and Phases from Indices of the Electrojet (SOPHIE)
C. Forsyth, I. J. Rae, J. C. Coxon +4
We present a new quantitative technique that determines the times and durations of substorm expansion and recovery phases and possible growth phases based on percentiles of the rat…
physics.space-ph2016
Birkeland current effects on high-latitude groundmagnetic field perturbations
K. M. Laundal, S. E. Haaland, N. Lehtinen +8
Magnetic perturbations on ground at high latitudes are directly associated only with the divergence-free component of the height-integrated horizontal ionospheric current, $\textbf…