Typical Units used in Underway data files from Southern Surveyor as National Facility since Jan 2003.

time:units = "dd-mmm-yyyy HH:MM:SS" (UTC)
latitude:units = "degrees_north"
longitude:units = "degrees_east"
speedOG:units = "knots"
courseOG:units = "degrees"
gyroHeading:units = "degrees"
waterDepth:units = "m"
airTemp:units = "degC"
humidity:units = "%"
windSpeed:units = "knots"
windDir:units = "degrees"
PAR:units = "uE/m^2"
atmPressure:units = "millibars"
waterTemp:units = "degC"
salinity:units = "PSU"