Open Access
Fig. 3
Download original image
The temporal evolution in the average quiet time variation of (a) GPS measured VTEC, (b) foF2 and hmF2, and (c) OI 630.0 nm dayglow intensity. Error bars represent the standard deviations in all the plots.
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.