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WERA Radial Components on a Polar Grid

Each file contains all information required to describe a radial current map. 
  The file name is encoded in yyyydddhhmm_ccc.rad_lst with
    yyyy = 2002        (year, 1999, 2002)
     ddd = 032 ... 092 (day within the year, e.g. 01-Feb to 31-Mar)
      hh =  00 ...  23 (hour)
      mm =  00 ...  59 (minutes)
     ccc = nic         (code for experiment, e.g. nic = Nice)
     cur = cur / wav   (cur indicating data set for 'currents')
                       (wav indicating data set for 'waves')

  The time is given in UTC and indicates the starting time
  of the measurement.
The structure within the file is as follows (example from the SCAWVEX Maasmond experiment): 
18-MAR-1996 00:19 UTC  OUDDORP/NL     51.82917 N     3.91750 E CIT=   532 sec
Distance =    0.601 km   Angles = 151
 Ang. Vel. [m/s]  Acc. [m/s]  Var. [m/s]     Power
   1     0.16265     0.00581     0.22538     0.17301578E+16
   2     0.16757     0.00546     0.19799     0.18696571E+16
   3     0.17017     0.00511     0.17375     0.20002616E+16
   4     0.17235     0.00484     0.15262     0.21002612E+16
   5     0.17424     0.00460     0.13556     0.21433100E+16
....
Distance =    1.804 km   Angles = 151
 Ang. Vel. [m/s]  Acc. [m/s]  Var. [m/s]     Power
   1     0.08218     0.00859     0.44777     0.53567933E+15
   2     0.12322     0.00812     0.39091     0.52626234E+15
   3     0.15264     0.00771     0.34555     0.51142343E+15
....

The first line gives:
     date/time of the start of the measurement, 
     name of the site, 
     LAT / LON of site,
     and if ' CIT=' exists, the coherent integration time.
     
Data packets for the range cells follow until [EOF]. Each packet is
structured as follows:

One line giving the distance from the radar and the number 
     of angles (data lines) to follow.
One heading line.
NNN data lines:
     Ang.       Angle in degrees
     Vel.[m/s]  Radial component of the surface current
     Acc.[m/s]  Accuracy of the radial component of the surface current
     Var.[m/s]  Variance of the radial component of the surface current
     Power      Relative power
     FORMAT(X,I4,3(X,F11.5),4X,E15.8)

Look here to find out how accuracy and variance of the radial current vectors are calculated.

Comments to: gurgel@ifm.uni-hamburg.de (Klaus-Werner Gurgel)