Figure 8
From: Ionospheric current contribution to the main impulse of a negative sudden impulse
![Figure 8](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1880-5981-66-92/MediaObjects/40623_2013_Article_131_Fig8_HTML.jpg)
MLT variations. (a) MI amplitude, ΔH; (b) estimate of magnetic field variations due to magnetopause currents, ΔHMP; and (c) residual field, ΔH − ΔHMP. For stations with geomagnetic latitudes between 60°S and 65°N.