This function is mainly intended for use within swAbsoluteSalinity() and
similar functions that use the gsw package to compute seawater
properties in the Gibbs Seawater formulation.
locationForGsw(x)A list containing longitude and latitude, with
dimensionality matching pressure in the data slot
of x. If x lacks location information (in either
its metadata or data slot) or lacks pressure in its
data slot, then the returned list will hold NULL values for
both longitude and latitude.
an oce object.
Dan Kelley
The gsw functions
require location information to be matched up with hydrographic
information. The scheme depends on the dimensionality of the
hydrographic variables and the location variables. For example,
the ctd stores salinity etc in vectors, an stores
just one longitude-latitude pair for each vector. By contrast,
the argo stores salinity etc as matrices, and stores
e.g. longitude as a vector of length matching the first
dimension of salinity.
locationForGsw repeats location information as required,
returning values with dimensionality matching pressure.
Other functions that calculate seawater properties:
T68fromT90(),
T90fromT48(),
T90fromT68(),
computableWaterProperties(),
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(),
swSpecificHeat(),
swSpice(),
swSstar(),
swTFreeze(),
swTSrho(),
swThermalConductivity(),
swTheta(),
swViscosity(),
swZ()