gsw_cabbeling
cabbeling coefficient (48-term equation)
Contents
USAGE:
cabbeling = gsw_cabbeling(SA,CT,p)
DESCRIPTION:
Calculates the cabbeling coefficient of seawater with respect to
Conservative Temperature. This function uses the computationally-
efficient 48-term expression for density in terms of SA, CT and p
(McDougall et al., 2011)
Note that the 48-term equation has been fitted in a restricted range of
parameter space, and is most accurate inside the "oceanographic funnel"
described in McDougall et al. (2011). The GSW library function
"gsw_infunnel(SA,CT,p)" is avaialble to be used if one wants to test if
some of one's data lies outside this "funnel".
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:
cabbeling = cabbeling coefficient with respect [ 1/(K^2) ]
to Conservative Temperature.
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;]
cabbeling = gsw_cabbeling(SA,CT,p)
cabbeling =
1.0e-004 *
0.086714418929414
0.086896846098803
0.092576793986774
0.108971394410689
0.112995099379498
0.115427535671542
AUTHOR:
David Jackett, Trevor McDougall and Paul Barker [ help@teos-10.org ]
VERSION NUMBER:
3.01 (11th May, 2011)
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. (3.9.2) and (P.4) of this TEOS-10 manual.
McDougall T.J., P.M. Barker, R. Feistel and D.R. Jackett, 2011: A
computationally efficient 48-term expression for the density of
seawater in terms of Conservative Temperature, and related properties
of seawater. To be submitted to Ocean Science Discussions.
The software is available from http://www.TEOS-10.org