Download original image
The occurrence time of the DDM structures in each month in different MLAT regions worldwide. Each row in the figure represents an MLAT region, and the black circles represent that the ionospheric DDMs have the highest occurrence rate in this period.
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.