R: Seawater Preformed Salinity, in GSW formulation

swSstar {oce} | R Documentation

## Seawater Preformed Salinity, in GSW formulation

### Description

Compute seawater Preformed Salinity (S*), according to the GSW/TEOS-10 formulation with `gsw::gsw_Sstar_from_SA()` in the gsw package.

### Usage

    swSstar(salinity, pressure = NULL, longitude = NULL, latitude = NULL)

### Arguments

`salinity` | either practical salinity (in which case `pressure` must be provided) or an `oce` object with `salinity` and `pressure` in its data slot, and with `longitude` and `latitude` either there, or in the metadata slot.
`pressure` | pressure in dbar.
`longitude` | longitude of observation.
`latitude` | latitude of observation.

### Value

Preformed Salinity, S*, in g/kg.

### Author(s)

Dan Kelley

### References

McDougall, T.J. and P.M. Barker, 2011: Getting started with TEOS-10 and the Gibbs Seawater (GSW) Oceanographic Toolbox, 28pp., SCOR/IAPSO WG127, ISBN 978-0-646-55621-5.

### See Also

For some objects, S-star may also be recovered by indexing as e.g. `ctd[["Sstar"]]`.

Other functions that calculate seawater properties: `T68fromT90()`, `T90fromT48()`, `T90fromT68()`, `computableWaterProperties()`, `locationForGsw()`, `swAbsoluteSalinity()`, `swAlphaOverBeta()`, `swAlpha()`, `swBeta()`, `swCSTp()`, `swConservativeTemperature()`, `swDepth()`, `swDynamicHeight()`, `swLapseRate()`, `swN2()`, `swPressure()`, `swRho()`, `swRrho()`, `swSCTp()`, `swSR()`, `swSTrho()`, `swSigma0()`, `swSigma1()`, `swSigma2()`, `swSigma3()`, `swSigma4()`, `swSigmaTheta()`, `swSigmaT()`, `swSigma()`, `swSoundAbsorption()`, `swSoundSpeed()`, `swSpecificHeat()`, `swSpice()`, `swTFreeze()`, `swTSrho()`, `swThermalConductivity()`, `swTheta()`, `swViscosity()`, `swZ()`

### Examples

    ## Not run:
    sa <- swAbsoluteSalinity(35.5, 300, 260, 16)
    stopifnot(abs(35.671358392019094 - sa) < 00.000000000000010)

    ## End(Not run)

[Package oce version 1.7-2 Index]