swSpecificHeat: Seawater specific heat

In oce: Analysis of Oceanographic Data

Seawater specific heat

Description

Compute specific heat of seawater.

Usage

swSpecificHeat(
  salinity,
  temperature = NULL,
  pressure = 0,
  longitude = NULL,
  latitude = NULL,
  eos = getOption("oceEOS", default = "gsw")
)

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 (^\circC), defined on the ITS-90 scale.
pressure	seawater pressure (dbar)
longitude	longitude of observation (only used if eos="gsw"; see “Details”).
latitude	latitude of observation (only used if eos="gsw"; see “Details”).
eos	equation of state, either "unesco" or "gsw".

Details

If the first argument is a ctd object, then salinity, etc, are extracted from it, and used for the calculation.

Value

Specific heat (J/kg/degC).

Author(s)

Dan Kelley

References

Millero et. al., J. Geophys. Res. 78 (1973), 4499-4507

Millero et. al., UNESCO report 38 (1981), 99-188.

See Also

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(), swSpice(), swSstar(), swTFreeze(), swTSrho(), swThermalConductivity(), swTheta(), swViscosity(), swZ()

Examples

swSpecificHeat(40, T90fromT68(40), 10000, eos="unesco") # 3949.499

oce documentation built on July 9, 2023, 5:18 p.m.