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Fig. 22


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Simulations of F-UT patterns sorted by the polarity of the average IMF [BY]GSEQ component during the prior hour. The top row shows the Russell-McPherron patterns PRM(FUT) in normalised power input into the magnetosphere simulated using the eccentric dipole geomagnetic field model for 2002 with (a) [BY]GSEQ = +|B|, (b) [BY]GSEQ = −|B|, and (c) an equal mix of [BY]GSEQ = +|B| and [BY]GSEQ= −|B|. The middle panels show the corresponding modelled patterns of Pm(FUT) = PRM(FUT) · Pψ(FUT) · PNS(UT). The observed patterns in (midn) data shown in the bottom panels are for (g) [BY]GSEQ < 0, (h) [BY]GSEQ > 0 and (i) all data.

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