Open Access

Figure 7


Download original image

Comparison of the semi-annual variations in various geomagnetic indices (in blue) and the power input into the magnetosphere (Pα, in mauve). All data are all available 3-hourly values for the interval 1995–2017, inclusive and averages are taken in 36 bins of F of width 0.0278. The pink and cyan shaded errors are plus and minus one standard error in the means. In each case mean values of a generic index X in each F bin are normalized by dividing by the overall mean of X over the whole interval. The panels are for the geomagnetic indices: (a) am; (b) -midnight; (c) -dawn; (d) -noon; (e) -dusk; (f) aaH; (g) Dst; (h) AU and (i) AL. Note that for the bottom row the y-scale has been expanded by a factor of 3.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.