Description Usage Arguments Details Value Author(s) References See Also
Compute sigma, the potential density of seawater (minus 1000 kg/m^3), referenced to 4000db pressures.
1 2 |
salinity |
either practical salinity (in which case |
temperature |
in-situ temperature [degC], defined
on the ITS-90 scale. This scale is used by GSW-style calculation (as
requested by setting |
pressure |
pressure [dbar] |
longitude |
longitude of observation (only used if |
latitude |
latitude of observation (only used if |
eos |
equation of state, either |
Definition: sigma_1=sigma_theta=rho(S,theta(S,t,p),4000) - 1000 kg/m^3.
Potential density anomaly [kg/m^3].
Dan Kelley
See citations provided in the swRho
documentation.
Other functions that calculate seawater properties: T68fromT90
,
T90fromT48
, T90fromT68
,
swAbsoluteSalinity
,
swAlphaOverBeta
, swAlpha
,
swBeta
, swCSTp
,
swConservativeTemperature
,
swDepth
, swDynamicHeight
,
swLapseRate
, swN2
,
swPressure
, swRho
,
swRrho
, swSCTp
,
swSTrho
, swSigma0
,
swSigma1
, swSigma2
,
swSigma3
, swSigmaTheta
,
swSigmaT
, swSigma
,
swSoundAbsorption
,
swSoundSpeed
, swSpecificHeat
,
swSpice
, swTFreeze
,
swTSrho
,
swThermalConductivity
,
swTheta
, swViscosity
,
swZ
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