Download original image
Latitude variations of the correlation coefficient between ΔfoF2 and <ap>24 h; the red, blue, black, and green lines correspond to the seasonal conditions of March equinox, June Solstice, September equinox, and December solstice, respectively. The dots surrounded by triangles indicate low statistical significance (P > 0.01) of the correlation coefficient.
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.