oce (version 0.1.63)

sw.sigma.theta: Seawater potential density anomaly

Description

Compute $\sigma_\theta$, the potential density of seawater, minus 1000 kg/m$^3$.

Usage

sigma.theta <- sw.sigma.theta(S, t, p);

Arguments

S

in-situ salinity [PSU]

t

in-situ temperature [$^\circ$C]

p

in-situ pressure [dbar]

Value

• Potential density anomaly [kg/m$^3$].

Details

Definition: $\sigma_\theta=\rho(S,\theta(S,t,p),0$ - 1000 kg/m$^3$.

References

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.

See Also

In the past, $\sigma_t$ was sometimes used as an alternative, but today $\sigma_\theta$ is much more commonly used.

Examples

sigma.theta <- sw.sigma.theta(35, 13, 1000) #