gsw_thermobaric
thermobaric coefficient (48-term equation)
Contents
USAGE:
thermobaric = gsw_thermobaric(SA,CT,p)
DESCRIPTION:
Calculates the thermobaric coefficient of seawater with respect to
Conservative Temperature. This routine calculates rho from the
computationally-efficient 48-term expression for density in terms of
SA, CT and p (IOC et al., 2010).
INPUT:
SA = Absolute Salinity [ g/kg ]
CT = Conservative Temperature [ deg C ]
p = sea pressure [ dbar ]
( i.e. absolute pressure - 10.1325 dbar )
SA & CT need to have the same dimensions.
p may have dimensions 1x1 or Mx1 or 1xN or MxN, where SA & CT are MxN.
OUTPUT:
thermobaric = thermobaric coefficient with respect
to Conservative Temperature. [ 1/(K Pa) ]
Note. The pressure derivative is taken with respect to
pressure in Pa not dbar.
EXAMPLE:
SA = [34.7118; 34.8915; 35.0256; 34.8472; 34.7366; 34.7324;]
CT = [28.8099; 28.4392; 22.7862; 10.2262; 6.8272; 4.3236;]
p = [ 10; 50; 125; 250; 600; 1000;]
thermobaric = gsw_thermobaric(SA,CT,p)
thermobaric =
1.0e-011 *
0.140572143831373
0.141670674489603
0.163021073914596
0.225896125166222
0.246017471421262
0.261310958174722
AUTHOR:
David Jackett, Trevor McDougall and Paul Barker [ help@teos-10.org ]
VERSION NUMBER:
3.04 (10th December, 2013)
REFERENCES:
IOC, SCOR and IAPSO, 2010: The international thermodynamic equation of
seawater - 2010: Calculation and use of thermodynamic properties.
Intergovernmental Oceanographic Commission, Manuals and Guides No. 56,
UNESCO (English), 196 pp. Available from the TEOS-10 web site.
See Eqns. (3.8.2) and (P.2) of this TEOS-10 manual.
The software is available from http://www.TEOS-10.org