sw.rho {oce} | R Documentation |
Compute, rho, the in-situ density of seawater.
sw.rho(S, t=NULL, p=NULL)
S |
either salinity [PSU] (in which case t and p
must be provided) or a ctd object (in which case
S , t and p are determined from the object, and
must not be provided in the argument list). |
t |
in-situ temperature [degC] |
p |
pressure [dbar] |
If the first argument is a ctd
object, then salinity,
temperature and pressure values are extracted from it, and used for
the calculation.
The density is calculated using the UNESCO equation of state for seawater, assuming that input variables are defined according to modern calibrations. In conventional Oceanographic notation, the calculated quantity is rho(S,t,p)
In-situ density [kg/m^3].
Dan Kelley
Fofonoff, P. and R. C. Millard Jr, 1983. Algorithms for computation of fundamental properties of seawater. Unesco Technical Papers in Marine Science, 44, 53 pp
Gill, A.E., 1982. Atmosphere-ocean Dynamics, Academic Press, New York, 662 pp.
Related density routines include
sw.sigma
,
sw.sigma.t
, and
sw.sigma.theta
.
rho <- sw.rho(35, 13, 1000) # 1030.818