gsw (version 1.0-5)

gsw_SA_freezing_from_t_poly: Compute Absolute Salinity at Freezing in-situ Temperature (Polynomial version)

Description

Compute Absolute Salinity at Freezing in-situ Temperature (Polynomial version)

Usage

gsw_SA_freezing_from_t_poly(t, p, saturation_fraction = 1)

Arguments

t

in-situ temperature (ITS-90) [ 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 ]

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_SA_freezing_from_t_poly.html

Examples

# NOT RUN {
t <- 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_t_poly(t, p, saturation_fraction)
expect_equal(SA, c(2.017072489768256, 2.151989342038462, 11.677649626115608,
                 32.843128114999026, 34.136459306273451, 33.097427522625182))
# }