Variables for DFCG ( FS Sonne  WOCE ) experiments :

     date = year-month-day
     hour = decimal hour
     lat = latitude North ( - = South )
     lon = longitude East ( - = West )
     ws = wind speed ( earth relative  at 21 m )
     seaT = sea near-surface temperature ( 4 m depth )
     airT = air temperature ( 21 m )
     qa = specific humidity ( calculated from rhum )
     wdir = wind direction from North ( 21 m )
     pres = atmospheric pressure ( 21 m )
     rhum = relative humidity ( 21 m )