Fig. 5


Download original image

Clock plots of dH/dt for the first (upper row, events (a)–(c)) and second intervals (lower row, events (d)–(f)), indicating the MLT orientation of maximum variation. Red lines indicate the dH/dt for each event observed at northern hemisphere sites, and blue for the New Zealand site. Approximate MLT zones of extreme dH/dt associated with DP1 and DP2 current systems (Freeman et al., 2019) are shown by dark and light grey shading respectively.

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.