SUDDEN  ENHANCEMENTS  OF  ATMOSPHERICS - SEA

Month: DECEMBER   YEAR: 2009      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.
  10   1055    1215   1106   1     2     80     5       
  16   1255    1340   1308   1     3     45     5      
  21   0918    1010   0930   1     2     52     3
  23   1012    1036   1021   1     4     24     1    
  28   1535    1604   1546   1     2     29     2b   UNCERTN

       Evaluated by J.Klimes