SUDDEN ENHANCEMENTS OF ATMOSPHERICS - SEA Month: DECEMBER YEAR: 2005 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. 1 0818 0910 0849 2 3 52 2a 1210 1254 1226 1 2 44 5 2 0859 1010 1010 2 2 71 3 PREFLARE 1010 1241 1023 3 4 151 5 14 1325 1404 1337 1 2 39 3 UNCERTN 15 0928 1028 1000 1 2 60 3 17 1233 1351 1308U 1 2 78 3 UNCERTN 22 0944 1045 0951 1 2 61 5 31 1002 1059 1009 1 2 57 3 1202 1254 1228 1 2 52 3 Evaluated by L.Krivsky and J.Klimes