sw.sigma.t {oce}R Documentation

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 [degC]
p in-situ pressure [dbar]

Details

Definition: sigma_t=rho(S,t,0) - 1000 kg/m^3.

Value

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

Author(s)

Dan Kelley Dan.Kelley@Dal.Ca

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) # 

[Package oce version 0.1.59 Index]