SUDDEN ENHANCEMENTS OF ATMOSPHERICS - SEA Month: JANUARY 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. 12 1314 1358 1325 1 2 44 5 14 1201 1234 1209 1 3 33 5 1239 1448 1319 2 3 129 5 16 1033 1130 1043 1 2 57 5 19 1436 1640 1509 3 4 124 5 28 0833 0906 0848 1 2 33 2a Evaluated by J.Klimes