sw.beta {oce}R Documentation

Seawater haline contraction coefficient

Description

Compute beta using McDougall's (1987) algorithm. NOTE: this conflicts with base::beta, so be sure to prefix as sw.beta().

Usage

sw.beta(S, t, p, is.theta=FALSE)

Arguments

S either salinity [PSU] (in which case t and p must be provided) or a ctd object (in which case S, t and p are determined from the object, and must not be provided in the argument list).
t in-situ temperature [degC]
p pressure [dbar]
is.theta Set TRUE if t is theta or FALSE if t is in-situ

Details

If the first argument is a ctd object, then salinity, temperature and pressure values are extracted from it, and used for the calculation.

Value

Value in 1/psu.

Author(s)

Dan Kelley

References

McDougall, T.J. 1987. "Neutral Surfaces" Journal of Physical Oceanography vol 17 pages 1950-1964

Examples

sw.beta(40, 10, 4000, is.theta=TRUE)  # 0.72088e-3 (from p1964 of McDougall 1987)

[Package oce version 0.1-76 Index]