SUDDEN  ENHANCEMENTS  OF  ATMOSPHERICS - SEA

Month: APRIL      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.
   1   0823   0925   0840    1     2     62     5
       1004   1115   1038U   1     2     71     2a
       1528   1614   1541    1     3     46     5
   2   1317   1406   1326    1     3     49     5
       1408   1529   1416    1     2     81     5
       1534   1618   1549    1     2     44     3
   3   0745   1003   0805    1     2    138     3
   4   1030   1044   1044    1     2     14     6    PREFLARE
       1044   1144   1054    3     4     60     1
       1418   1504   1423    1     2     46     3
       1526   1643   1537    3     4     77     1
   5   1309   1412   1322U   1     2     63     5
       1435   1457   1446    1     2     22     6    UNCERTN
       1516   1555   1523    1     2     39     5
   6   0614   0650   0622    1     3     36     5
       1406   1450   1447U   1     2     44     5
   7   0821   0841   0826    1     2     20     6
       1424   1542   1429U   1     2     78     3
   9   0604   0902   0612    2     4    178     5
       1258   1544   1310    1     4    166     5
  10   1226   1403   1235U   1     3     97     5
       1420   1519   1430    1     2     59     5
       1543   1624   1545    1     2     41     5
  11   1618   1703   1630    1     3     45     5
  12   1309   1404   1313    2     4     55     5
       1557   1633U  1608    2     3     36U    5
  13   1328   1510   1408U   1     2    102     3    UNCERTN
  14   0736   0812   0746    1     2     36     5
       1006   1106   1011    1     2     60     3
  16   0752   0945   0859    1     2    113     3
       1041   1120   1045    1     3     39     1
       1244   1437   1322    2     4    113     2a
  17   0752   1028   0808    2     3    156     5
       1339   1424   1348    1     2     45     3
  18   0640   0805   0653    3     4     85     5
       0900   0936   0910U   1     2     36     3
  19   0703   0730   0708    1     2     27     5
  20   1538   1631   1557    1     2     53     3
  21   1240   1311   1251    1     2     31     2a
  22   0803   0830   0811    1     2     27     5
  24   1549   1631   1611U   1     2     42     3
  26   0922   1050   0940U   1     2     88     5
  28   0909   1004   0922U   1     2     55     3    UNCERTN
  29   0830   0908   0843U   1     2     38     3
       0915   1030   0947    1     2     75     3
       1035   1157   1049U   1     2     82     3
       1204   1335   1315    1     2     91     3
  30   0821   0914   0826    3     4     53     5
       1110   1145   1119    1     2     35     3

       Evaluated by L.Krivsky and J.Klimes