SUDDEN ENHANCEMENTS OF ATMOSPHERICS - SEA Month: MARCH 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. 9 1204 1235 1231 1 2 31 3 PREFLARE 1235 1402 1250 1 2 87 5 11 0858 0958 0907 1 2 60 3 UNCERTN 1314 1535 1330 1 2 141 5 UNCERTN 16 0637 0713 0653 1 2 36 3 NO OBSERVATION: 30. 0000 2400 31. 0000 2400 Evaluated by J.Klimes