R: Potential Temperature of Ice Referenced to the Surface

gsw_pt0_from_t_ice {gsw} | R Documentation

## Potential Temperature of Ice Referenced to the Surface

### Description

Potential Temperature of Ice Referenced to the Surface

### Usage

    gsw_pt0_from_t_ice(t, p)

### Arguments

`t` | in-situ temperature (ITS-90) [ 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

potential temperature [ degC ]

### References

http://www.teos-10.org/pubs/gsw/html/gsw_pt0_from_t_ice.html

### Examples

    t  <- c(-10.7856, -13.4329, -12.8103, -12.2600, -10.8863, -8.4036)
    p <- c(       10,       50,      125,      250,      600,    1000)
    pt0 <- gsw_pt0_from_t_ice(t, p)
    expect_equal(pt0, c(-10.787787898205298, -13.443730926050607, -12.837427056999708,
                      -12.314321615760905, -11.017040858094250, -8.622907355083088))

[Package gsw version 1.0-5 Index]