SUDDEN ENHANCEMENTS OF ATMOSPHERICS - SEA Month: JULY YEAR: 2012 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. 2 1035 1045 1037 1 2 10 6 PREFLARE 1045 1137 1055 2 4 52 1 4 0430 0458 0438 1 2 28 6 0951 1018D 0958 1 3 27D 5 1221 1300 1227 1 2 39 5 6 0819 0902 0827 1 2 43 3 1004 1051 1019 1 2 47 2a 7 1101 1153 1106 1 2 52 5 8 0531 0640 0553 1 2 69 3 1724 1819 1732 1 3 55 5 10 0502 0552 0518 1 2 50 2a 0610 0710 0627 1 2 60 2a 12 1602 1620 1620 1 2 18 6 PREFLARE 1620 1800 1636 2 4 100 5 13 0648 0729 0703 1 2 41 3 18 0550 0657 0611 1 2 67 3 19 0506 0713D 0554 3 3 127D 5 27 1722 1816 1729 1 2 54 5 29 0619 0718 0628 2 3 59 5 30 1544 1614 1553 1 2 30 5 Evaluated by J.Klimes