SUDDEN ENHANCEMENTS OF ATMOSPHERICS - SEA Month: MARCH YEAR: 2014 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 1322 1431 1333 2 4 69 1 3 0650 0724 0706 1 2 34 3 UNCERTN 1557 1612 1601 1 2 15 5 4 1117 1207 1127 1 2 50 5 9 0837 0857 0842U 1 2 20 6 1331 1352 1334 1 2 21 5 1355 1420 1400 1 3 25 5 1431 1518 1444 1 3 47 5 10 1036 1125 1045 1 3 49 5 1132 1219 1140 1 2 47 5 1525 1556 1529 2 3 31 1 11 1000 1024 1021 1 2 24 4 1201 1250 1208 2 4 49 5 12 1100 1150 1110 3 3 50 5 15 0921 0958 0937 1 2 37 2b 16 0641 0706 0647 1 3 25 5 18 1529 1619 1538 1 3 50 5 19 0729 0800 0735 1 2 31 5 20 0357 0457 0414 2 3 60 5 22 0701 0713 0704 1 2 12 5 30 1137 1149 1149 1 2 12 6 PREFLARE 1149 1238 1157 3 4 49 5 31 0757 0915 0809 2 4 78 5 1412 1432 1417 1 2 20 6 Evaluated by J.Klimes