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Fig. 15


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F-UT of conductivity factors for the hemispheric indices. The top row is for northern hemisphere indices, the bottom row for southern hemisphere indices. The columns from left to right are for: (a) and (f) for the hemispheric an and as indices, PΣN and PΣS; (b) and (g) for the N(dawn) and S(dawn) indices, PΣN(dawn) and PΣS(dawn); (c) and (h) for the N(noon) and S(noon) indices, PΣN(noon) and PΣS(noon); (d) and (i) for the N(dusk) and S(dusk) indices, PΣN(dusk) and PΣS(dusk); and (e) and (j) for the N(midn) and S (midn) indices, PΣN(midn) and PΣS(midn).

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