air.density {bigleaf}

R Documentation

Air Density

Description

Air density of moist air from air temperature and pressure.

Usage

air.density(Tair, pressure, constants = bigleaf.constants())

Arguments

Tair	Air temperature (deg C)
pressure	Atmospheric pressure (kPa)
constants	Kelvin - conversion degC to Kelvin Rd - gas constant of dry air (J kg-1 K-1) kPa2Pa - conversion kilopascal (kPa) to pascal (Pa)

Details

Air density (\rho) is calculated as:

\rho = pressure / (Rd * Tair)

Value

\rho - air density (kg m-3)

References

Foken, T, 2008: Micrometeorology. Springer, Berlin, Germany.

Examples

# air density at 25degC and standard pressure (101.325kPa)
air.density(25,101.325)

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