oce (version 0.1.63)

sw.sigma.t: Seawater quasi-potential density anomaly

Description

Compute $\sigma_t$, a quasi-potential density of seawater, minus 1000 kg/m$^3$.

Usage

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

Arguments

S

in-situ salinity [PSU]

t

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

p

in-situ pressure [dbar]

Value

• Quasi-potential density anomaly [kg/m$^3$].

Details

Definition: $\sigma_t=\rho(S,t,0)$ - 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

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.

Examples

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