SUDDEN  ENHANCEMENTS  OF  ATMOSPHERICS - SEA

Month: JULY       YEAR: 2021      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.
  3     0712    0749    0716     2     4      37     5
        0826    0842    0836     1     2      16     2b
        1310    1341    1323     1     2      31     2a
        1427    1645    1433     2     4     138     5
        1702    1742    1708     1     2      40     5
  9     1041    1110    1053     1     2      29     2b   

        NO OBSERVATION   

        Evaluated by J.Klimes