SUDDEN  ENHANCEMENTS  OF  ATMOSPHERICS - SEA

Month: APRIL      YEAR: 2003      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   0920   0948   0934    1     2     28     6
       1436   1517   1447    1     2     41     3
   2   1501   1535   1519    1     2     34     3
   3   0748   0942   0805    1     2    114     3
       1500   1530   1519    1     2     30     3
   4   1203   1238   1221    1     2     35     3
       1332   1415D  1344    1     2     43D    5
       1415   1516   1428    1     2     61     5
       1617   1648   1621    1     2     31     3
   5   0654   0854   0707    1     2    120     3
       0910   1045   0924    2     3     95     5
       1320   1422   1349    1     2     62     2a
       1430   1450   1432    1     2     20     5
       1500   1530   1513    1     2     30     5
   6   0804   0841   0816    1     2     37     5
   7   1151   1258   1230    1     2     67     3
   8   0819   1005   0851    2     3    106     5
       1035   1206   1050    1     2     91     5
       1314   1415   1336    1     2     61     5
   9   0602   0835   0615    2     3    153     5
       0925   1012   0939    1     2     47     3
       1127   1153   1141    1     2     26     6
  11   0728   0812   0731    2     4     44     1
  14   0504   0532   0505    2     4     28     1
  20   1532   1630   1551    1     2     58     3
  21   1202   1303   1303    1     2     61     3    PREFLARE
       1303   1401   1308    2     4     58     1
  22   1207   1251   1218U   1     2     44     3
  23   1129   1245   1213U   1     2     76     3
       1542   1746   1558    2     4    124     5
  24   1252   1348   1256    2     4     56     1
       1440   1528   1453    1     2     48     3
       1547   1649   1555    2     4     62     5
  26   0745   0806   0806    1     2     21     6    PREFLARE
       0806   0902   0809    3     4     56     1
       1441   1511   1450    1     4     30     1
       1634   1701   1637    1     3     27     5
  27   0740   0835   0743    2     4     55     5
       1530   1603   1535    2     4     33     1
       1607   1650   1625U   1     2     43     3
  28   1322   1452   1335    1     2     90     5
  29   1344   1405   1352    1     2     21     6    PREFLARE
       1405   1441   1410    1     3     36     5

       Evaluated by L.Krivsky and J.Klimes