SUDDEN ENHANCEMENTS OF ATMOSPHERICS - SEA Month: MAY YEAR: 2002 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 1444 1529 1458U 1 2 45 3 1620 1644 1627 1 2 24 5 UNCERTN 3 1436 1704 1545U 1 2 148 3 4 1314 1554 1329 1 3 160 5 5 0754 0839 0818 1 2 45 3 8 0941 1020 1002 1 2 39 3 1305 1747 1330 2 3 282 5 9 0910 1116 0917 1 2 126 5 11 0747 0823 0806 1 2 36 2a 0838 0928 0900 1 2 50 3 1125 1232 1151U 1 3 67 2a 13 1650 1724 1654 1 2 34 5 15 0804 0905 0816 2 4 61 5 16 0534 0658 0553 2 2 84 5 17 0520 0608 0528 2 3 48 5 0711 0731 0731 1 2 20 6 PREFLARE 0731 0951 0740 3 4 140 5 1603 1632 1610 1 3 29 5 19 0755 0854 0840 2 3 59 4 20 1018 1137 1032 1 4 79 5 1328 1417 1339 1 2 49 3 1525 1720 1530 3 4 115 1 21 1310 1435 1314U 1 2 85 3 UNCERTN 1630 1720 1635 1 2 50 5 22 1808 1828 1818 1 2 20 2b 24 0627 0644 0644 1 2 17 6 PREFLARE 0644 0720 0646 2 3 36 5 0827 0900 0832U 1 2 33 3 1443 1528 1451 1 2 45 3 25 1408 1519 1434 1 2 71 3 UNCERTN 26 0614 0819 0758 2 3 125 4 0956 1330 1016 2 3 214 5 UNCERTN 27 0558 0646 0618 1 2 48 3 29 0406 0439 0409 1 2 33 5 0515 0612 0517 1 2 57 5 0659 0839 0711 1 3 100 5 0950 1108 1009 1 2 78 3 1502 1539 1508 1 2 37 5 1548 1632 1555 1 2 44 5 30 0444 0652 0530 1 2 128 3 1421 1532D 1429 1 2 71D 5 1532 1657 1547 1 2 85 5 1704 1830 1721 2 4 86 5 31 1302 1322 1308 1 2 20 2a Evaluated by L.Krivsky and J.Klimes