gsw_cabbeling: Cabbeling coefficient

View source: R/gsw.R

gsw_cabbelingR Documentation

Cabbeling coefficient


Cabbeling coefficient (75-term equation)


gsw_cabbeling(SA, CT, p)



Absolute Salinity [ g/kg ]


Conservative Temperature [ degC ]


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


Cabbeling coefficient with respect to Conservative Temperature [ 1/(K^2) ]

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.



SA <- c(34.7118, 34.8915, 35.0256, 34.8472, 34.7366, 34.7324)
CT <- c(28.8099, 28.4392, 22.7862, 10.2262,  6.8272,  4.3236)
p <-  c(     10,      50,     125,     250,     600,    1000)
cabbeling <- gsw_cabbeling(SA,CT,p)
stopifnot(all.equal(cabbeling*1e4, c(0.086645721047423, 0.086837829466794, 0.092525582052438,
                                     0.108884336975401, 0.112971197222338, 0.115483896148927)))

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