rh2q {eva3dm} | R Documentation |
Convert relative humidity to absolute humidity
Description
function to convert humidity to absolute humidity using Tetens formula, assuming standard atmosphere conditions.
Usage
rh2q(rh, temp = 15)
Arguments
rh |
vector (or data.frame) of relative humidity (in percentage) |
temp |
vector (or data.frame) of temperature (in Celsius) |
Value
value of data.frame with time and the absolute humidity, units are g/g
Note
default values are from standard atmosphere (288.15 K / 15 C)
if rh and temp arguments are data.frame, both need to have the same number of lines and columns, first column (time column) will be ignored.
Examples
# for a singfle value
rh2q(rh = 99, temp = 25)
# vector of rh values
rh2q(rh = c(0,seq(1,100, by = 4)), temp = 25)
# vector of values for rh and temp
rh2q(rh = c(0,seq(1,100, by = 4)), temp = 10:35)
# rh is data.frame and temp is a value
times <- seq(as.POSIXct('2024-01-01',tz = 'UTC'),
as.POSIXct('2024-01-02',tz = 'UTC'),
by = 'hour')
rh2q(rh = data.frame(time = times, a = seq(1,100, by = 4)),temp = 25)
# using both rh and temp are data.frames
rh2q(rh = data.frame(time = times, a = seq(1,100, by = 4)),
temp = data.frame(time = times, a = 11:35))
[Package eva3dm version 1.11 Index]