Calculate Practical Salinity from salinometer readings of conductivity ratio and bath temperature.
gsw_SP_salinometer(ratio, temperature)Conductivity ratio [ unitless ].
(This is called Rt in the GSW documentation.)
Bath temperature [ degC ].
(This is called t in the GSW documentation.)
Practical salinity on the PSS-77 scale [ unitless ]
This R function uses a wrapper to a C function contained within the GSW-C system as updated 2021-12-28 at https://github.com/TEOS-10/GSW-C 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
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 2022-05-25,
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.
ratio <- c( 0.9345, 0.95123, 0.91807, 0.8886, 0.8169, 0.6687)
temperature <- c(28.7856, 28.4329, 22.8103, 10.2600, 6.8863, 4.4036)
SP <- gsw_SP_salinometer(ratio, temperature)
stopifnot(all.equal(SP,
c(32.431728787558541, 33.085035719966307, 31.800791917322833,
30.692490757036179, 27.979281308696116, 22.474597460508491)))