sw.sigma.t {oce} | R Documentation |
Compute sigma-t, a quasi-potential density of seawater, minus 1000 kg/m^3.
sigma.t <- sw.sigma.t(S, t, p);
S |
in-situ salinity [PSU] |
t |
in-situ temperature [degC] |
p |
in-situ pressure [dbar] |
Definition: sigma_t=rho(S,t,0) - 1000 kg/m^3.
Quasi-potential density anomaly [kg/m^3].
Dan Kelley Dan.Kelley@Dal.Ca
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.
Normally sigma_theta is more useful than the present function. Indeed, sigma_t is mainly of historical interest, going back to the days when it was too time-consuming to compute sigma_theta by hand.
sigma.t <- sw.sigma.t(35, 13, 1000) #