SUDDEN  ENHANCEMENTS  OF  ATMOSPHERICS - SEA

Month: MAY        YEAR: 2007      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   1410   1501   1425    1     2     51     3
       1513   1550   1525    1     2     37     3
   5   0854   1012   0914    1     2     78     3
       1130   1200   1136    1     3     30     5
   9   0928   0953   0937    1     2     25     5
       1338   1403   1354    1     2     25     6
  11   0755   0839   0806    1     2     44     5    UNCERTN
  14   1330   1420   1335    1     2     50     5    UNCERTN
  15   1209   1251   1215    1     2     42     5
  16   1433   1530   1506U   1     2     57     3
       1547   1632   1550U   1     2     45     3
  19   1250   1338   1258U   1     2     48     5    UNCERTN
  20   0728   0856   0807U   1     2     88     5
  25   0545   0623   0555    1     2     38     5
  30   1156   1230   1201    1     2     34     5
       1351   1609   1409    1     4    138     5
       1808   1831   1817    1     3     23     2b
  31   0428   0545   0512    1     2     77     3
       0740   0757   0750U   1     2     17     6
       1243   1329   1251    1     2     46     5
       1438   1537   1501    1     2     59     5

       Evaluated by J.Klimes