Free Access
Fig. 4.

Amplitude spectra of the SMEI data: Original data with F1 identified (top panel), amplitude spectra after pre-whitening with F1 and showing F2 (middle panel), and residuals after pre-whitening F1 and F2 (bottom panel). The position of the Nyquist frequency is marked in red.
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.