swAbsoluteSalinity: Seawater absolute salinity, in GSW formulation

Description Usage Arguments Details Value Author(s) References See Also Examples

View source: R/sw.R

Description

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

Usage

1
2
swAbsoluteSalinity(salinity, pressure = NULL, longitude = 300,
  latitude = 30)

Arguments

salinity

either practical salinity (in which case temperature and pressure must be provided) or an oce object (in which case salinity, etc. are inferred from the object).

pressure

pressure in dbar.

longitude

longitude of observation.

latitude

latitude of observation.

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

1
2
3
4
5
## Not run: 
sa <- swAbsoluteSalinity(35.5, 300, 260, 16)
stopifnot(abs(35.671358392019094 - sa) < 00.000000000000010)

## End(Not run)

oce documentation built on May 29, 2017, 12:19 p.m.

Search within the oce package
Search all R packages, documentation and source code