Left: SDO/HMI line-of-sight magnetogram of the analysed magnetic structure, measured at 23:00:45 UT on the 6th July 2013. Blue contours show the magnetic field intensity levels of 70 (dash), 100 (solid) and 600 (dash) G. Right: temporal variations of the average line-of-sight component of the magnetic field (blue) in the structure, integrated over the whole 100 G contour. The red solid line shows the long-term trend of the blue signal, determined as the last empirical mode with EMD (see Sect. 3). Variations of the total area inside the 100 G contour are shown by the black solid line, with the long-term trend (green line) determined also with EMD. Both original time-series were normalised to their maximum values (shown in arbitrary units), and the total area signal was slightly shifted downwards for a better visualisation. The elapsed time starts at 23:00:45 UT on the 6th July 2013 and spans 13 h of observations with a cadence of 45 s.
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.