oce (version 1.7-8)

swSstar: 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)

Value

Preformed Salinity, S*, in \(g/kg\).

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.

Author

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

if (FALSE) {
sa <- swAbsoluteSalinity(35.5, 300, 260, 16)
stopifnot(abs(35.671358392019094 - sa) < 00.000000000000010)
}