SUDDEN  ENHANCEMENTS  OF  ATMOSPHERICS - SEA

Month: MAY        YEAR: 2012      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    0422    0505    0449     1     2      43      3
   3    0602    0649    0609     1     2      47      5    UNCERTN
   7    0648    0725    0709     1     2      37      3
        1105    1140    1110     1     3      35      1
        1406    1647    1430     2     4     161      5
        1726    1749    1736     1     2      23      6
   8    1304    1411    1311     1     4      67      1
   9    1223    1343    1235     2     4      80      1
        1406    1455    1410     1     4      49      1
  10    0416    0548    0422     1     3      92      5
        1339    1514    1345     1     2      95      5
        1652    1719    1659     1     2      27      6
        1742    1809    1755     1     2      27      2b
  11    0833    0927    0845     1     2      54      3
        1300    1418    1311     1     3      78      5
  13    0810    0855    0815     1     3      45      5
  14    0734    0811    0741     1     2      37      5
  18    0806    0857    0815     1     2      51      3
  21    1632    1701    1639     1     2      29      5    UNCERTN
  26    1607    1631    1612     1     2      24      6    UNCERTN
  27    0453    0619    0530     1     2      86      2a

        NO OBSERVATION 4.; 5.; and 6.5.2012

        Evaluated by J.Klimes