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Fig. 1. | Earth, Planets and Space

Fig. 1.

From: On the coupling of fast and shear Alfvén wave modes by the ionospheric Hall conductance

Fig. 1.

ULF field components for m = 0, ∑P = 5 S and ∑H = 10 S. Snapshots at t = 800 s of the fast mode magnetic field (top, left) and shear mode electric field (top, right) show fast to shear mode coupling for m = 0. The north-south ground magnetic fields over t = 0–1200 s are shown at bottom, left. The spatial variation of the Alfvén speed used in the model is shown at bottom, right.

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