psychrometric.constant: Psychrometric Constant
In lhmet-forks/bigleaf: Physical and Physiological Ecosystem Properties from Eddy Covariance Data
Description
Usage
Arguments
Details
Value
References
Examples
View source: R/meteorological_variables.r
Description
Calculates the psychrometric 'constant'.
Usage
1
psychrometric.constant(Tair, pressure, constants = bigleaf.constants())
Arguments
Tair
Air temperature (deg C)
pressure
Atmospheric pressure (kPa)
constants
cp - specific heat of air for constant pressure (J K-1 kg-1)
eps - ratio of the molecular weight of water vapor to dry air (-)
Details
The psychrometric constant (γ) is given as:
γ = cp * pressure / (eps * λ)
where λ is the latent heat of vaporization (J kg-1),
as calculated from latent.heat.vaporization.
Value
γ -
the psychrometric constant (kPa K-1)
References
Monteith J.L., Unsworth M.H., 2008: Principles of Environmental Physics.
3rd Edition. Academic Press, London.
Examples
1
psychrometric.constant(seq(5,45,5),100)
lhmet-forks/bigleaf documentation built on Aug. 4, 2020, 12:08 a.m.
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Description Usage Arguments Details Value References Examples
View source: R/meteorological_variables.r
Description
Calculates the psychrometric 'constant'.
Usage
1 | psychrometric.constant(Tair, pressure, constants = bigleaf.constants())
|
Arguments
Tair |
Air temperature (deg C) |
pressure |
Atmospheric pressure (kPa) |
constants |
cp - specific heat of air for constant pressure (J K-1 kg-1) |
Details
The psychrometric constant (γ) is given as:
γ = cp * pressure / (eps * λ)
where λ is the latent heat of vaporization (J kg-1),
as calculated from latent.heat.vaporization.
Value
γ - |
the psychrometric constant (kPa K-1) |
References
Monteith J.L., Unsworth M.H., 2008: Principles of Environmental Physics. 3rd Edition. Academic Press, London.
Examples
1 | psychrometric.constant(seq(5,45,5),100)
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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