Figure 4

Figure 4 Refer to the following caption and surrounding text.

Download original image

Selected vTEC maps in the European sector for the period of May 10th from 21:35 until 23:15 UTC. The resolution is 1° in latitude and 1° in longitude. The green dots represent the position of the IPPs of LOFAR remote and international stations projected to an altitude of 350 km. Units are in TECu.

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.