dew.point {bigleaf} | R Documentation |
calculates the dew point, the temperature to which air must be cooled to become saturated (i.e. e = Esat(Td))
dew.point(
Tair,
VPD,
accuracy = 0.001,
Esat.formula = c("Sonntag_1990", "Alduchov_1996", "Allen_1998"),
constants = bigleaf.constants()
)
Tair |
Air temperature (degC) |
VPD |
Vapor pressure deficit (kPa) |
accuracy |
Accuracy of the result (deg C) |
Esat.formula |
Optional: formula to be used for the calculation of esat and the slope of esat.
One of |
constants |
Pa2kPa - conversion pascal (Pa) to kilopascal (kPa) |
Dew point temperature (Td) is defined by:
e = Esat(Td)
where e is vapor pressure of the air and Esat is the vapor pressure deficit.
This equation is solved for Td using optimize
.
Td - |
dew point temperature (degC) |
Monteith J.L., Unsworth M.H., 2008: Principles of Environmental Physics. 3rd edition. Academic Press, London.
dew.point(c(25,30),1.5)