Compute seawater Preformed Salinity (S*), according to the GSW/TEOS-10
formulation with gsw::gsw_Sstar_from_SA() in the gsw package.
swSstar(salinity, pressure = NULL, longitude = NULL, latitude = NULL)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 in dbar.
longitude of observation.
latitude of observation.
Preformed Salinity, S*, in \(g/kg\).
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.
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(),
swAlpha(),
swAlphaOverBeta(),
swBeta(),
swCSTp(),
swConservativeTemperature(),
swDepth(),
swDynamicHeight(),
swLapseRate(),
swN2(),
swPressure(),
swRho(),
swRrho(),
swSCTp(),
swSR(),
swSTrho(),
swSigma(),
swSigma0(),
swSigma1(),
swSigma2(),
swSigma3(),
swSigma4(),
swSigmaT(),
swSigmaTheta(),
swSoundAbsorption(),
swSoundSpeed(),
swSpecificHeat(),
swSpice(),
swSpiciness0(),
swSpiciness1(),
swSpiciness2(),
swTFreeze(),
swTSrho(),
swThermalConductivity(),
swTheta(),
swViscosity(),
swZ()
swSstar(35.5, 300, 260, 16) # 35.66601
#> [1] 35.66601