Fig. 3From: Significant enhancements of secondary cosmic rays and electric field at the high mountain peak of Lomnický Štít in High Tatras during thunderstormsHistograms summarizing the observation at LS. a Number of minutes when Nres> 41 (Nraw/10) for specific intervals of normalized PG. b Total duration of PG values in specific intervals. c Occurrence rate of Nres> 41 (Nraw/10) for various intervals of normalized PG. d Duration of enhancements in dependence on their relative values Nres/median(Nraw)Back to article page