Figure 8.

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(a) Jz dynamic spectrum 24 October 2011. (b) Jz dynamic spectrum 08 March 2012. (c) ULF Hns dynamic spectrum 24 October 2011. (d) ULF Hns dynamic spectrum 8 March 2012. Color bars for Jz are in pA m−2/√Hz and pT2/Hz for the ULF spectrum.

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