Saturation vapor pressure of water — calc_vapor

Computes the saturation vapor pressure of water (or seawater) in atm.

Usage

calc_vapor_press(temp_water = 25, salinity = 0, method = "Dickson2007")

Arguments

temp_water: Water temperature in degrees Celsius. May be a vector.
salinity: Practical salinity (unitless). Use 0 for freshwater. Ignored when method = "MIMSY".
method: Either "Dickson2007" (Wagner & Pruss pure-water fit with a seawater osmotic correction) or "MIMSY" (Antoine equation, freshwater). Defaults to "Dickson2007".

Value

Saturation vapor pressure in atm.

References

Dickson, A.G., Sabine, C.L. and Christian, J.R. (Eds.) 2007. Guide to best practices for ocean CO2 measurements. PICES Special Publication 3, 191 pp. (Chapter 5, section 3.) Stull, D.R. 1947. Vapor pressure of pure substances. Ind. Eng. Chem. 39(4): 517-540. doi:10.1021/ie50448a022 Kelly, M.C. (2024). mimsy: Calculate MIMS Dissolved Gas Concentrations Without Getting a Headache. R package version 0.6.5. https://CRAN.R-project.org/package=mimsy

Examples

calc_vapor_press(temp_water = 25, salinity = 35, method = "Dickson2007")
#> [1] 0.03069887
calc_vapor_press(temp_water = 20, salinity = 0, method = "MIMSY")
#> [1] 0.02300875