| swPressure {oce} | R Documentation |
Water Pressure
Description
Compute seawater pressure from depth by inverting swDepth()
using uniroot().
Usage
swPressure(depth, latitude = 45, eos = getOption("oceEOS", default = "gsw"))
Arguments
depth |
distance below the surface in metres. |
latitude |
Latitude in |
eos |
indication of formulation to be used, either |
Details
If eos="unesco" this is done by numerical inversion of
swDepth() is done using uniroot(). If
eos="gsw", it is done using gsw::gsw_p_from_z() in the
gsw package.
Value
Pressure in dbar.
Author(s)
Dan Kelley
References
Unesco 1983. Algorithms for computation of fundamental properties of seawater, 1983. Unesco Tech. Pap. in Mar. Sci., No. 44, 53 pp.
See Also
Other functions that calculate seawater properties:
T68fromT90(),
T90fromT48(),
T90fromT68(),
computableWaterProperties(),
locationForGsw(),
swAbsoluteSalinity(),
swAlphaOverBeta(),
swAlpha(),
swBeta(),
swCSTp(),
swConservativeTemperature(),
swDepth(),
swDynamicHeight(),
swLapseRate(),
swN2(),
swRho(),
swRrho(),
swSCTp(),
swSR(),
swSTrho(),
swSigma0(),
swSigma1(),
swSigma2(),
swSigma3(),
swSigma4(),
swSigmaTheta(),
swSigmaT(),
swSigma(),
swSoundAbsorption(),
swSoundSpeed(),
swSpecificHeat(),
swSpice(),
swSstar(),
swTFreeze(),
swTSrho(),
swThermalConductivity(),
swTheta(),
swViscosity(),
swZ()
Examples
swPressure(9712.653, 30, eos = "unesco") # 10000
swPressure(9712.653, 30, eos = "gsw") # 9998.863