sw.rho {oce} | R Documentation |
Compute, rho, the in-situ density of seawater.
rho <- sw.rho(ctd) rho <- sw.rho(S, t=NULL, p=NULL)
ctd |
an object of class "ctd ". |
S |
salinity [PSU] |
t |
in-situ temperature [degC] |
p |
pressure [dbar] |
In the first form, the argument is a ctd
object, from
which the salinity, temperature and pressure values are extracted and
used to 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