Upper plot: four chromospheric proxies, averaged over 80 days, using a Gaussian filter. The two major outages are shown shaded. Bottom plot: excerpt of the same proxies, showing daily values. The long-term trend has been subtracted from the latter. All records have been normalised to their standard deviation and shifted vertically for easier visualisation.
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.