gsw: gsw_thermobaric – R documentation

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gsw

gsw_thermobaric

Thermobaric coefficient (75-term equation)

Description

Thermobaric coefficient (75-term equation)

Usage

gsw_thermobaric(SA, CT, p)

Arguments

`SA`	Absolute Salinity [ g/kg ]
`CT`	Conservative Temperature [ degC ]
`p`	sea pressure [dbar], i.e. absolute pressure [dbar] minus 10.1325 dbar

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.

Value

thermobaric coefficient wrt Conservative Temperature [ 1/(K Pa) ]

References

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

Examples

SA <- c(34.7118, 34.8915, 35.0256, 34.8472, 34.7366, 34.7324)
CT <- c(28.8099, 28.4392, 22.7862, 10.2262,  6.8272,  4.3236)
p <-  c(     10,      50,     125,     250,     600,    1000)
tb <- gsw_thermobaric(SA, CT, p)
expect_equal(tb*1e11, c(0.152618598186650, 0.153662896162852, 0.173429325875738,
                      0.232810160208414, 0.251984724005424, 0.266660342289558))

gsw

Gibbs Sea Water Functions

v1.0-5

GPL (>= 2) | file LICENSE

Authors

Dan Kelley [aut, cre, cph] (C wrapper plus R code, tests, and documentation), Clark Richards [aut, cph] (C wrapper plus R code, tests, and documentation), WG127 SCOR/IAPSO [aut, cph] (Original 'Matlab' and derived code)

Initial release

2017-08-08