gsw_SA_freezing_from_CT: Compute Absolute Salinity at Freezing Conservative...

Description Usage Arguments Value Implementation Note References Examples

View source: R/gsw.R

Description

Compute Absolute Salinity at Freezing Conservative Temperature

Usage

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gsw_SA_freezing_from_CT(CT, p, saturation_fraction = 1)

Arguments

CT

Conservative Temperature [ degC ]

p

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

saturation_fraction

fraction of air in water [unitless]

Value

Absolute Salinity [ g/kg ]

Implementation Note

This R function uses a wrapper to a C function contained within the GSW-C system as updated 2021-03-27 at https://github.com/TEOS-10/GSW-C with git commit 'f7bfebf44f686034636facb09852f1d5760c27f5'. In turn, that 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 is no longer displayed on the TEOS-10.org website. Therefore, in the interests of making GSW-R be self-contained, a copy was downloaded from http://www.teos-10.org/software/gsw_matlab_v3_06_11.zip on 2021-0706, the .mat file was stored in the developer/create_data directory of https://github.com/TEOS-10/GSW-R, and then the dataset used in GSW-R was created based on that .mat file. Please consult http://www.teos-10.org to learn more about the various TEOS-10 software systems.

References

http://www.teos-10.org/pubs/gsw/html/gsw_SA_freezing_from_CT.html

Examples

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CT <- c(-0.11901, -0.15608, -0.72138, -1.97738, -2.31728, -2.56764)
p <- c(       10,       50,      125,      250,      600,     1000)
saturation_fraction <- 1
SA <- gsw_SA_freezing_from_CT(CT, p, saturation_fraction)
stopifnot(all.equal(SA, c(2.280500648179144, 2.416867651098550, 11.973503162175106,
                          32.868973869711390, 34.017513292374431, 32.859871943514150)))

gsw documentation built on July 8, 2021, 1:07 a.m.