SUDDEN ENHANCEMENTS OF ATMOSPHERICS - SEA Month: JULY YEAR: 2016 Observing Station: OBSERVATORY U P I C E CZECH REPUBLIC Lat.: 50 30 26.6 N Sea level: 416 m Long.: 16 00 43.5 E Frequency: 27 kHz Band pass: 308 Hz a 3 dB Chart speed: 3.4 cm/H Recorder time constant: 27 sec Date Start End Max. Imp. Def. Dur. Type REMARKS UT UT UT SEA min. 7 0750 0834 0802 1 2 44 5 16 0701 0733 0707 1 2 32 5 18 0810 0818 0818 1 2 8 6 PREFLARE 0818 0856 0825 1 2 38 5 21 1117 1132 1121 1 2 15 5 1252 1320U 1256U 1 2 28U 5 22 0645 0703 0652 1 2 18 2b 23 0509 0723 0516 2 3 134 5 24 0612 0730 0620 2 4 78 5 Evaluated by J.Klimes