Calculate Reference Salinity from Practical Salinity

Calculate Reference Salinity from Practical Salinity

Usage

gsw_SR_from_SP(SP)

Arguments

SP

Practical Salinity (PSS-78) [ unitless ]. The valid range for most `gsw` functions is from 2 to 42.

Value

Reference Salinity [ g/kg ]

Implementation Note

This R function uses a wrapper to a C function contained within the GSW-C system as updated 2022-10-11 at https://github.com/TEOS-10/GSW-C with git commit `657216dd4f5ea079b5f0e021a4163e2d26893371`.

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.

References

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

See also

Other things related to salinity: gsw_C_from_SP(), gsw_SA_from_SP(), gsw_SA_from_SP_Baltic(), gsw_SA_from_Sstar(), gsw_SP_from_C(), gsw_SP_from_SA(), gsw_SP_from_SK(), gsw_SP_from_SR(), gsw_SP_from_Sstar(), gsw_Sstar_from_SA(), gsw_Sstar_from_SP(), gsw_deltaSA_from_SP()

Examples

SP <- c(34.5487, 34.7275, 34.8605, 34.6810, 34.5680, 34.5600)
SR <- gsw_SR_from_SP(SP)
stopifnot(all.equal(SR, c(34.711611927085727, 34.891255045714303, 35.024882197714305,
                          34.844535778285724, 34.731002934857159, 34.722965211428587)))