heatindex (version 0.0.2)

wetbulb: Wet-bulb temperature

Description

wetbulb calculates the thermodynamic (or psychrometric) wet-bulb (or ice-bulb) temperature using the Rankine-Kirchhoff approximations.

Usage

wetbulb(
  p,
  T,
  rh,
  psychrometric = FALSE,
  icebulb = FALSE,
  verbose = TRUE,
  lewis = 0.85
)

Value

The values of the wet-bulb temperature, in Kelvin, in the same shape as p, T, and rh.

Arguments

p

The total air pressuire in Pa. This can be a single number, a vector, a matrix, or an array.

T

The absolute air temperature in Kelvin. This can be a single number, a vector, a matrix, or an array.

rh

The relative humidity of the air, with values in the range of 0 to 1, with respect to saturation over liquid water for air temperatures over 273.16 K and with respect to saturation over ice for air temperatures lower than 273.16 K. This can be a single number, a vector, a matrix, or an array.

psychrometric

A logical indicating whether to calculate the thermodynamic wet-bulb temperature (if FALSE) or the psychometric (a.k.a., ventilated or aspirated) wet-bulb temperature (if TRUE). Default is FALSE.

icebulb

A logical indicating whether to calculate the temperature of an ice-bulb (if TRUE) or wet-bulb (if FALSE). Default is FALSE.

verbose

A logical indicating whether or not to print warning messages. Default is TRUE.

lewis

The Lewis number for moist air. Default is 0.85.

Author

David M. Romps

References

Romps, D. M. (2025). Wet-bulb temperature from pressure, relative humidity, and air temperature. In review.

Examples

wetbulb(1e5,300,0)
wetbulb(1e5,301:310,0)
wetbulb(1e5,301:310,1:10/10)
wetbulb(1:10*1e4,301:310,1:10/10)