gsw (version 1.0-5)

gsw_CT_freezing_poly: Conservative Temperature Freezing Point (Polynomial version)

Description

Conservative Temperature Freezing Point (Polynomial version)

Usage

gsw_CT_freezing_poly(SA, p, saturation_fraction = 1)

Arguments

SA

Absolute Salinity [ g/kg ]

p

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

saturation_fraction

saturation fraction of dissolved air in seawater

Value

Conservative Temperature at freezing of seawater [ degC ].

Details

The present R function works with a wrapper to a C function contained within the GSW-C system (Version 3.05-4 dated 2017-08-07, available at https://github.com/TEOS-10/GSW-C, as git commit '5b4d959e54031f9e972f3e863f63e67fa4f5bfec'), which stems from the GSW-Fortran system (https://github.com/TEOS-10/GSW-Fortran) which in turn stems from the GSW-Matlab system (https://github.com/TEOS-10/GSW-Matlab). Consult http://www.teos-10.org to learn more about these software systems, their authorships, and the science behind it all.

References

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

Examples

# NOT RUN {
SA <- c(34.7118, 34.8915, 35.0256, 34.8472, 34.7366, 34.7324)
p <-  c(     10,      50,     125,     250,     600,    1000)
saturation_fraction <- 1
CT_freezing <- gsw_CT_freezing(SA, p, saturation_fraction)
expect_equal(CT_freezing, c(-1.899683776424096, -1.940791867869104, -2.006240664432488,
                            -2.092357761318778, -2.359300831770506, -2.677162675412748))
# }