sw.alpha {oce}R Documentation

Seawater thermal expansion coefficient

Description

Compute alpha, the seawater thermal expansion coefficient, as the product of alpha/beta and beta, each calculated from McDougall's (1987) algorithm.

Usage

  a <- sw.alpha(S, t, p, is.theta=FALSE);

Arguments

S salinity [PSU]
t Temperature or potential temperature [degC], according to is.theta
p pressure [dbar]
is.theta Set TRUE if t is theta or FALSE if t is in-situ

Details

McDougall (1987). Note the use of potential temperature, not temperature.

Value

Value in 1/degC.

Author(s)

Dan Kelley Dan.Kelley@Dal.Ca

References

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

See Also

N/A.

Examples

 a <- sw.alpha(40, 10, 4000) # 2.5060e-4 (inferred from p1964 of McDougall 1987)

[Package oce version 0.1.59 Index]