calcRH_AH: Calculate Relative Humidity from temperature and absolute...

In ConSciR: Tools for Conservation Science

Calculate Relative Humidity from temperature and absolute humidity

Description

Function to calculate relative humidity (%) from temperature (°C) and absolute humidity (g/m^3)

Usage

calcRH_AH(Temp, AH, P_atm = 1013.25)

Arguments

Temp	Temperature (°Celsius)
AH	Absolute Humidity (g/m³)
P_atm	Atmospheric pressure = 1013.25 (hPa)

Value

Relative Humidity (0-100%)

References

Buck, A. L. (1981). New equations for computing vapor pressure and enhancement factor. Journal of Applied Meteorology, 20(12), 1527-1532.

See Also

calcAH for calculating absolute humidity

calcTemp for calculating temperature

calcRH_DP for calculating relative humidity from dew point

calcDP for calculating dew point

Examples

# Relative humidity (RH) at temperature of 20°C (Temp) and absolute humidity of 8.645471 g/m³ (AH)
calcRH_AH(20, 8.630534)

calcRH_AH(20, calcAH(20, 50))


# mydata file
filepath <- data_file_path("mydata.xlsx")
mydata <- readxl::read_excel(filepath, sheet = "mydata", n_max = 5)

mydata |> dplyr::mutate(Abs = calcAH(Temp, RH), RH2 = calcRH_AH(Temp, Abs))

ConSciR documentation built on Nov. 5, 2025, 5:25 p.m.