SUDDEN ENHANCEMENTS OF ATMOSPHERICS - SEA Month: JANUARY YEAR: 2007 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. 6 1149 1204 1151 1 2 15 5 UNCERTN 7 1009 1049 1015 1 2 40 3 UNCERTN 13 1039 1100 1042 1 2 21 5 UNCERTN 21 1411 1438 1418 1 2 27 5 26 1211 1230 1220 1 2 19 6 1354 1426 1407 1 2 32 3 28 0827 0853 0836 1 2 26 6 UNCERTN 0948 1159 1021U 1 2 131 3 UNCERTN 29 1346 1406 1347 1 2 20 5 31 1210 1308 1247U 1 2 58 3 UNCERTN The evaluation is not available for a strong radio disturbation: Date From To Date From To Date From To 02 0645 1555 03 0640 1635 04 0610 1610 05 0600 1345 08 0530 1615 09 0600 1630 10 0615 1620 11 0600 1545 12 0510 1600 15 0445 1630 16 0600 1515 17 0600 1635 18 0610 1525 22 0555 1510 23 0535 1520 24 0600 1525 25 0555 1600 26 0600 1205 29 0600 1100 30 0630 2400 31 0000 1130 Evaluated by J.Klimes