Seawater absolute salinity, in GSW formulation

Description

Compute seawater absolute salinity, according to the GSW/TEOS-10 formulation.

Usage

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

Arguments

Details

The absolute salinity is calculated using the GSW function gsw_SA_from_SP. Typically, this is a fraction of a unit higher than practical salinity as defined in the UNESCO formulae.

Value

Absolute Salinity 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

The related TEOS-10 quantity “conservative temperature” may be computed with swConservativeTemperature. For a ctd object, absolute salinity may also be recovered by indexing as e.g. ctd[["absoluteSalinity"]] or ctd[["SA"]].

Other functions that calculate seawater properties: T68fromT90, T90fromT48, T90fromT68, swAlphaOverBeta, swAlpha, swBeta, swCSTp, swConservativeTemperature, swDepth, swDynamicHeight, swLapseRate, swN2, swPressure, swRho, swRrho, swSCTp, 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)