Add humidity variables to meteorological data frame

Add humidity variables to meteorological data frame

Usage

add_hum_vars(data, hum_method = 1)

Arguments

data

Data frame with meteorological data including columns: "hum" (humidity input), "airp" (air pressure, Pa), "sst" (sea surface temperature, degC or K), "airt" (air temperature, degC or K)

hum_method

Method for humidity input: 1 = relative humidity ( 2 = wet bulb temperature (degC or K) 3 = dew point temperature (degC or K) 4 = specific humidity (kg/kg)

Value

Data frame with added columns:

es

Saturation vapour pressure at sea surface temperature (Pa)

qs

Saturation specific humidity at sea surface temperature (kg/kg)

ea

Actual vapour pressure (Pa)

qa

Actual specific humidity (kg/kg)

rhoa

Air density (kg/m3)