MADIS WISDOM Balloon Wind Variables --------------------------------------------------------------------------------------------------- Code Name Units Max Notes Max Number Database* QC Level of Levels FSL AWIPS --------------------------------------------------------------------------------------------------- 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 Balloon Wind data is only available with the FSL database.