Open Access

Fig. 5.


Download original image

Trend of the global NmF2 (left) and hmF2 (right) as derived from global averages and standard deviations of the retrieved F2 layer peak computed for the days under investigation. The data is plotted for the study period between 10 June 2006 and 29 April 2014.

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.