Variables for DBCK ( R/V Heincke  WOCE ) experiments :

     date = year-month-day
     hour = decimal hour
     lat = latitude North ( - = South )
     lon = longitude East ( - = West )
     ws = wind speed ( earth relative  at 24.5 m )
     seaT = sea near-surface temperature ( 2 m depth )
     airT = air temperature ( 17 m )
     qa = specific humidity ( calculated from rhum )
     wdir = wind direction from North ( 24.5 m )
     pres = atmospheric pressure ( 17 m )
     wbT = wet bulb temperature ( 17 m )
     dewT = dewpoint temperature ( 17 m )
     rhum = relative humidity ( 17 m )