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marelac (version 2.1.11)

air_spechum: Air specific humidity

Description

The specific humidity of air (mass mixing ratio in wet air), in kg/kg

Usage

air_spechum(t = 25, rh = 50, P = 1.013253)

Value

The specific humidity, in kg/kg.

Arguments

t

Temperature, \(^\circ\)C.

rh

Relative humidity, %

P

True pressure, bar

Author

Karline Soetaert <karline.soetaert@nioz.nl>, Lorenz Meire <lorenz.meire@nioz.nl>

References

Lowe, P.R. and J.M. Ficke, 1974: The computation of saturation vapor pressure. Tech. Paper No. 4-74, Environmental Prediction Research Facility, Naval Postgraduate School, Monterey, CA, 27 pp.

http://www.cactus2000.de/uk/unit/masshum.shtml

See Also

vapor, air_density, gas_O2sat, gas_satconc, gas_schmidt, gas_solubility, gas_transfer, atmComp

Examples

Run this code
air_spechum(t = 25, rh = 50)*1000     # 9.7778
plot(0:30, air_spechum(t = 0:30), xlab = "Temperature, dgC", ylab = "kg/kg")
plot(0:100, air_spechum(rh = 0:100), xlab = "percent humidity", ylab = "kg/kg")

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