gsw (version 1.0-5)

gsw_pt_from_entropy: Potential Temperature from Entropy

Description

Potential Temperature from Entropy

Usage

gsw_pt_from_entropy(SA, entropy)

Arguments

SA

Absolute Salinity [ g/kg ]

entropy

specific entropy [ J/(degC*kg) ]

Value

potential temperature [ 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_pt_from_entropy.html

See Also

Other things related to entropy: gsw_CT_from_entropy, gsw_entropy_first_derivatives, gsw_entropy_from_pt, gsw_entropy_from_t, gsw_entropy_ice

Examples

# NOT RUN {
SA <- c(      34.7118,  34.8915,  35.0256,  34.8472, 34.7366, 34.7324)
entropy <- c(400.3892, 395.4378, 319.8668, 146.7910, 98.6471, 62.7919)
pt <- gsw_pt_from_entropy(SA, entropy)
expect_equal(pt, c(28.783179828078666, 28.420954825949291, 22.784952736245351,
                 10.230532066931868, 6.829213325916900, 4.324537782985845))
# }