sw.sigma.theta {oce} | R Documentation |
Compute sigma-theta, the potential density of seawater, minus 1000 kg/m^3.
sigma.theta <- sw.sigma.theta(S, t, p);
S |
in-situ salinity [PSU] |
t |
in-situ temperature [degC] |
p |
in-situ pressure [dbar] |
Definition: sigma_theta=rho(S,theta(S,t,p),0) - 1000 kg/m^3.
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.
In the past, sigma_t was sometimes used as an alternative, but today sigma_theta is much more commonly used.
sigma.theta <- sw.sigma.theta(35, 13, 1000) #