Compute $\sigma$, the in-situ density of seawater, minus 1000 kg/m$^3$.
Usage
sig <- sw.sigma(S, t, p);
Arguments
S
in-situ salinity [PSU]
t
in-situ temperature [$^\circ$C]
p
in-situ pressure [dbar]
Value
In-situ density anomaly [kg/m$^3$].
Details
Definition:
$\rho(S,t,p)$
- 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.