Seawater conservative temperature, in GSW formulation

Description

Compute seawater conservative temperature, according to the GSW/TEOS-10 formulation.

Usage

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swConservativeTemperature(salinity, temperature = NULL, 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).

temperature

in-situ temperature [degC], defined on the ITS-90 scale; see “Temperature units” in the documentation for swRho.

pressure

pressure [dbar]

longitude

longitude of observation.

latitude

latitude of observation.

Details

If the first argument is an oce object, then values for salinity, etc., are extracted from it, and used for the calculation, and the corresponding arguments to the present function are ignored.

The conservative temperature is calculated using the TEOS-10 function gsw_CT_from_t from the gsw package.

Value

Conservative temperature in degrees Celcius.

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 “absolute salinity” may be computed with swAbsoluteSalinity. For a ctd object, conservative temperature may also be recovered by indexing as e.g. ctd[["conservativeTemperature"]] or ctd[["CT"]].

Other functions that calculate seawater properties: T68fromT90, T90fromT48, T90fromT68, swAbsoluteSalinity, swAlphaOverBeta, swAlpha, swBeta, swCSTp, 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

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swConservativeTemperature(35,10,1000,188,4) # 9.86883

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