gsw_chem_potential_water_ice: Chemical Potential of Ice

View source: R/gsw.R

gsw_chem_potential_water_iceR Documentation

Chemical Potential of Ice


Chemical Potential of Ice


gsw_chem_potential_water_ice(t, p)



in-situ temperature (ITS-90) [ degC ]


sea pressure [dbar], i.e. absolute pressure [dbar] minus 10.1325 dbar


chemical potential [ J/kg ]

Implementation Note

This R function uses a wrapper to a C function contained within the GSW-C system as updated 2021-12-28 at with git commit '98f0fd40dd9ceb0ba82c9d47ac750e935a7d0459'.

The C function uses data from the library/gsw_data_v3_0.mat file provided in the GSW-Matlab source code, version 3.06-11. Unfortunately, this version of the mat file is no longer displayed on the website. Therefore, in the interests of making GSW-R be self-contained, a copy was downloaded from on 2022-05-25, the .mat file was stored in the developer/create_data directory of, and then the dataset used in GSW-R was created based on that .mat file.

Please consult to learn more about the various TEOS-10 software systems.


See Also

Other things related to chemical potential: gsw_chem_potential_water_t_exact()


t <- c(-10.7856, -13.4329, -12.8103, -12.2600,  -10.8863,  -8.4036)
p <- c(      10,       50,      125,      250,      600,      1000)
pot <- gsw_chem_potential_water_ice(t, p)
stopifnot(all.equal(pot/1e4, c(-1.340648365149857, -1.644921413491445, -1.480991678890353,
                               -1.272436055728805, -0.711509477199393, 0.045575390357792)))

gsw documentation built on Oct. 16, 2022, 5:06 p.m.