SUDDEN  ENHANCEMENTS  OF  ATMOSPHERICS - SEA

Month: FEBRUARY   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.
   9   0952   1019   0953    1     2     27     5    UNCERTN
  10   1116   1202   1144    1     2     46     3    UNCERTN
       1227   1319   1242    1     2     52     3    UNCERTN
       1335   1458   1355    1     2     83     3    UNCERTN
  20   1015   1038   1018U   1     2     23     2b   UNCERTN
  21   0843   0917   0853U   1     2     34     3    UNCERTN
       1046   1128   1115    1     2     42     3    UNCERTN
       1153   1316   1206    1     2     83     3    UNCERTN

The evaluation is not available for a strong radio disturbation:

Date From  To     Date From  To     Date From  To
01   0550  1135   02   0815  1130   05   0620  1145
06   0620  1745   07   0550  0935   08   0630  1000
12   0935  1025   18   1120  1420

       Evaluated by J.Klimes