Fig. 13From: Magnetic ripples observed by Swarm satellites and their enhancement during typhoon activityComparison of average MR amplitudes between typhoon and non-typhoon cases. The left and right panels show non-typhoon and typhoon cases on the night side sector (21–3 LT), respectively. Average amplitudes of the meridional (top) and zonal (middle) components, and number of data (bottom) in each mesh grid are shownBack to article page