R: Properties of Frazil ice

gsw_frazil_properties {gsw} | R Documentation

## Properties of Frazil ice

### Description

Calculation of Absolute Salinity, Conservative Temperature, and ice mass fraction based on bulk Absolute Salinity, bulk enthalpy, and pressure

### Usage

    gsw_frazil_properties(SA_bulk, h_bulk, p)

### Arguments

`SA_bulk` | Absolute Salinity of a combination of seawater and ice [ g/kg ]
`h_bulk` | enthalpy of a mixture of seawater and ice [ J/kg ]
`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

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

### References

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

### Examples

    SA_bulk <- c(  34.7118,   34.8915,   35.0256,   34.8472,   34.7366,   34.7324)
    h_bulk <- c( -4.5544e4, -4.6033e4, -4.5830e4, -4.5589e4, -4.4948e4, -4.4027e4)
    p <- c(             10,        50,       125,       250,       600,      1000)
    r <- gsw_frazil_properties(SA_bulk, h_bulk, p)
    expect_equal(r$SA_final, c(39.111030663000442, 39.407625769681573, 39.595789974885108,
                             39.481230045372889, 39.591177095552503, 39.826467709177123))
    expect_equal(r$CT_final, c(-2.156311126114311, -2.204672298963783, -2.273689262333450,
                             -2.363714136353600, -2.644541000680772, -2.977651291726651))
    expect_equal(r$w_Ih_final, c(0.112480560814322, 0.114600300867556, 0.115421108602301,
                               0.117372990660305, 0.122617649983886, 0.127906590822347))

[Package gsw version 1.0-5 Index]