SUDDEN  ENHANCEMENTS  OF  ATMOSPHERICS - SEA

Month: DECEMBER   YEAR: 2011      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    1326    1338    1332     1     2      12      6    UNCERTN
   5    1519    1530    1522     1     2      11      5
   7    0605    0631    0614     1     2      26      5    UNCERTN
   9    1309    1421    1323     1     2      72      3
  14    1321    1403    1330     2     4      42      5
        1454    1523    1501     1     2      29      5
  20    1142    1214    1155     1     2      32      3    UNCERTN
  21    0736    0825    0744     1     2      49      3
        1231    1352    1241     1     2      81      5
  24    1157    1419    1236     1     2     142      3
  25    1121    1159    1128     1     3      38      5
  26    1128    1335    1204     1     2     127      5
  27    0813    0838    0820     1     2      25      6
        0921    1004    0925     1     2      43      5
        1202    1337    1210     1     3      95      5
  28    1301    1353    1317     1     2      52      3
        1423    1459    1428     1     3      36      5
  29    0716    0839    0722     1     3      83      5
        1342    1500    1352     3     4      78      5
  30    0820    0841    0830     1     2      21      6
        1031    1120    1038     2     3      49      5
        1340    1411    1345     1     2      31      5
  31    1310    1415    1316     3     4      65      5

       Evaluated by J.Klimes