BarometricPressure
BarometricPressure(Elevation) requires one parameter and that it the elevation above sea level in [m] for SI units or [ft] for English System units. The function returns the standard barometric pressure in the selected EES pressure units up to an elevation of about 12000 m. Use the Standard_Atmosphere_1976 procedure{link=*! ExecFile("")} to determine the pressure and temperature of the atmosphere for higher elevations.
Example:
$UnitSystem SI C kPa
h=1000 [m]
P=barometricpressure(h)
{Solution: P=89.88 kPa}
Reference: http://archive.psas.pdx.edu/RocketScience/PressureAltitude_Derived.pdf