MADIS WISDOM Variables

MADIS WISDOM Balloon Wind Variables
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Code       Name                                Units      Max     Notes      Max Number   Database*
                                                       QC Level               of Levels  FSL  
---------------------------------------------------------------------------------------------------
                                                            
CIRCERR   position fix error                   m
DD        wind direction                       deg          1       1                     X   
FF        wind speed                           m/s          1       1                     X   
U         u wind component                     m/s          1       1                     X   
V         v wind component                     m/s          1       1                     X   
HT        altitude                             m            0                             X   
P         pressure (Calulated)                 Pa           0                             X  
POBS      pressure (Observed)                  Pa           0       2                     X  
LAT       latitude                             deg N        1                             X   
LON       longitude                            deg E        1                             X   
T         air temperature                      K            1       2                     X        
RH        relative humidity                    %            1       2                     X       
CUTDOWN   cutdown flag                         code         0       3



Notes

  1. Wind speed and direction are calculated from position change informaton and are and stored in the database. The user can optionally select u & v wind components and those will be calculated and returned. The QC results from speed and direction will be used in either case, and if one of the map projections has been selected via the MSETDOM call, the winds will be rotated to match the projection.

  2. The only quality control currently performed on the observed pressure, air temperature, and relative humidity is to subjectively flag them as bad, pending further work to determine the usefulness of these observations.

  3. The cutdown flag is used to command the balloon to self-destruct.
    
           Value      Meaning
           -----      -------
             0        Cutdown not asserted
             1        Cutdown asserted
    
* The WISDOM data is only available with the FSL database.