swAlpha(salinity, temperature = NULL, pressure = 0, longitude = 300, latitude = 30, eos = getOption("oceEOS", default = "gsw"))temperature
and pressure must be provided) or an oce object (in
which case salinity, etc. are inferred from the object).swRho.eos="gsw";
see ‘Details’).eos="gsw"; see
‘Details’)."unesco" or "gsw".eos="unesco" formulae are based on the UNESCO
equation of state, but are formulated empirically by Trevor J. McDougall,
1987, Neutral Surfaces, Journal of Physical Oceanography, volume 17, pages
1950-1964. The eos="gsw" formulae come from GSW; see references in
the swRho documentation.
T68fromT90,
T90fromT48, T90fromT68,
swAbsoluteSalinity,
swAlphaOverBeta, 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