R: Calculate properties related to ice melting in seawater

gsw_melting_ice_into_seawater {gsw} | R Documentation

## Calculate properties related to ice melting in seawater

### Description

Calculate properties related to ice melting in seawater

### Usage

    gsw_melting_ice_into_seawater(SA, CT, p, w_Ih, t_Ih)

### Arguments

`SA` | Absolute Salinity [ g/kg ]
`CT` | Conservative Temperature [ degC ]
`p` | sea pressure [dbar], i.e. absolute pressure [dbar] minus 10.1325 dbar
`w_Ih` | initial mass fraction (ice) / (water + ice)
`t_Ih` | initial temperature of ice [ 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.

### Value

a list containing `SA_final`, `CT_final` and `w_Ih_final`.

### References

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

### Examples

    SA <- c(  34.7118, 34.8915, 35.0256, 34.8472, 34.7366, 34.7324)
    CT <- c(   4.7856,  2.4329,  1.8103,  1.2600,  0.6886,  0.4403)
    p <- c(        10,      50,     125,     250,     600,    1000)
    w_Ih <- c( 0.0560, 0.02513, 0.02159, 0.01210, 0.00943, 0.00751)
    t_Ih <- c(-4.7856, -4.4329, -3.8103, -4.2600, -3.8863, -3.4036)
    r <- gsw_melting_ice_into_seawater(SA, CT, p, w_Ih, t_Ih)
    expect_equal(r$SA_final, c(32.767939199999994, 34.014676604999998, 34.269397295999994,
                               34.425548880000001, 34.409033862000001, 34.471559675999998))
    expect_equal(r$CT_final, c(-0.298448911022612, 0.215263001418312, -0.074341719211557,
                               0.207796293045473, -0.123785388299875, -0.202531182809225))
    expect_equal(r$w_Ih_final, rep(0, 6))

[Package gsw version 1.0-5 Index]