gsw_cp_ice: Specific heat to ice

View source: R/gsw.R

gsw_cp_iceR Documentation

Specific heat to ice


Specific heat of ice


gsw_cp_ice(t, p)



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


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


specific heat [ J/(K*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.



t <- c(-10.7856, -13.4329, -12.8103, -12.2600, -10.8863, -8.4036)
p <-  c(     10,      50,     125,     250,     600,    1000)
cp <- gsw_cp_ice(t, p)
stopifnot(all.equal(cp, c(2017.314262094657, 1997.830122682709, 2002.281331375396,
                          2006.127319545421, 2015.676303959609, 2033.308170371559)))

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