SUDDEN ENHANCEMENTS OF ATMOSPHERICS - SEA Month: MAY 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 1412 1503 1435 1 2 51 2a 3 1027 1103 1040 1 2 36 2a 4 1103 1127 1111 1 2 24 5 1149 1210D 1159 1 2 22D 5 5 1412 1432 1417 1 2 20 5 PREFLARE 1432 1556 1450U 1 2 84 5 6 0924 0956 0942U 1 2 32 3 1026 1122 1122 1 2 56 3 PREFLARE 1122 1220 1128 2 3 58 1 1405 1444 1415U 1 2 39 3 1520 1603 1546 1 2 43 3 7 0803 1028 0815 3 4 145 5 1146 1222 1206 1 2 36 3 8 1626 1736 1642 1 2 70 3 9 1042 1311 1104 2 3 149 5 10 0508U 0626 0530U 1 2 78 3 11 0615 0855 0634U 2 2 160 5 1659 1746 1703 1 3 47 5 12 0716 0732 0720 1 2 16 5 PREFLARE 0732 0905 0742 3 3 93 5 1624 1724 1654 1 2 60 3 1739 1904 1749 2 3 85 5 13 1635 1814 1658 3 4 99 5 14 1504 1552 1530 1 2 48 3 16 0902 1050 0916 3 3 108 5 25 1640 1707 1652 1 2 27 6 31 1435 1510 1443 1 2 35 5 The evaluation is not available for a strong radio disturbation: Day From To Day From To Day From To 01. 0630-1340 02. 0630-1555 03. 0650-1000 04. 1210-1510 12. 1205-1435 13. 0635-1530 14. 0730-1415 15. 1020-1430 16. 0715-0850 16. 1130-1550 19. 0555-0830 19. 1235-1540 20. 0640-1540 21. 0730-1545 22. 0600-1550 25. 0700-1550 26. 0445-1550 27. 0500-1550 28. 0500-1610 29. 0545-1610 30. 0540-1440 31. 0610-1420 Evaluated by L.Krivsky and J.Klimes