Fig. 2: Lightning maps from January 3, 2017.
From: Whistler echo trains triggered by energetic winter lightning
a Locations of lightning discharges from the consolidated list consisting of EUCLID and WWLLN detections. b The locations of lightning discharges from the consolidated list (in grey) are shown, with the source lightning discharges for echo trains in colour coded by the time of their occurrence. The colours correspond to the time of lightning occurrence. The coloured ovals mark three separated areas with the lightning activity (Northern thunderstorm – blue, Central Mediterranean – green, and Eastern and African Mediterranean – orange). The intervals of distances the sferics travelled to the receiving station Kannuslehto (KAN) are also shown (906–1137 km from the Northern thunderstorm; 2638–3040 km from the Central Mediterranean; 3495−4185 km from the Eastern and African Mediterranean). Source data are provided as a Source Data file. The maps were plotted using the IDL® procedures (a product of Exelis Visual Information Solutions, Inc., a subsidiary of Harris Corporation).
