Originally Posted by
eckhard
QNH gives a correct reading of elevation when on the ground at the airport.
QFE makes the altimeter reads zero when on the ground.
The altimeter setting that shows correct elevation at sea level is the QFF, not really used in aviation operations but is useful for meteorological plotting of isobars, etc.
thank you.
that also explains why some ATIS informations in the US cite Sea Level Pressure.
Though if the airport is at 11ft elevation it's kind of redundant.