humidityconvert: Converts between different measures of humidity

In ilyamaclean/microclima: microclimate modelling with R

Converts between different measures of humidity

Description

humidityconvert is used to convert between different measures of humidity, namely relative, absolute or specific. Vapour pressure is also returned.

Usage

humidityconvert(h, intype = "relative", tc = 20, p = 101300)

Arguments

h	humidity value(s). Units as follows: specific humidity (kg kg-1), absolute humidity (kg m-3 ), relative humidity (percentage), vapour pressure (kPa).
intype	a character string description of the humidity type of h. One of "relative", "absolute" or "specific".
tc	A numeric value specifying the temperature (ºC).
p	An optional numeric value specifying the atmospheric pressure (Pa).

Details

This function converts between vapour pressure and specific, relative and absolute humidity, based on sea-level pressure and temperature. It returns a list of relative, absolute and specific humidity and vapour pressure. If intype is unspecified, then h is assumed to be relative humidity. If p is unspecified, pressure assumed to be 101300, a typical value for sea-level pressure. If one or more of the relative humidity values exceeds 100\

Value

a list of numeric humidity values with the following components:

1

relative - relative humidity (percentage)

2

absolute - absolute humidity (kg m^-3 )

3

specific specific humidity (kg kg^-1 )

4

vapour_pressure vapour pressure (kPa)

Examples

humidityconvert(90, 'relative', 20)
humidityconvert(0.01555486, 'absolute', 20)
humidityconvert(0.01292172, 'specific', 20)

ilyamaclean/microclima documentation built on Sept. 5, 2024, 8:37 p.m.