Contents
USAGE:
internal_energy_CT_exact = gsw_internal_energy_CT_exact(SA,CT,p)
DESCRIPTION:
Calculates the specific internal energy of seawater.
Note that this function uses the full Gibbs function. There is an
alternative to calling this function, namely gsw_internal_energy(SA,CT,p),
which uses the computationally efficient 75-term expression for specific
volume in terms of SA, CT and p (Roquet et al., 2015).
INPUT:
SA = Absolute Salinity [ g/kg ]
CT = in-situ temperature (ITS-90) [ 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:
internal_energy_CT_exact = specific internal energy, u [ J/kg ]
EXAMPLE:
SA = [34.7118; 34.8915; 35.0256; 34.8472; 34.7366; 34.7324;]
CT = [28.7856; 28.4329; 22.8103; 10.2600; 6.8863; 4.4036;]
p = [ 10; 50; 125; 250; 600; 1000;]
internal_energy_CT_exact = gsw_internal_energy_CT_exact(SA,CT,p)
internal_energy_CT_exact =
1.0e+005 *
1.148091577191008
1.134013145674121
0.909571141535849
0.408593072626607
0.273985278505536
0.175019411572283
AUTHOR:
Trevor McDougall [ help@teos-10.org ]
VERSION NUMBER:
3.05 (16th February, 2015)
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 Eqn. (2.11.1) of this TEOS-10 Manual.
Roquet, F., G. Madec, T.J. McDougall, P.M. Barker, 2015: Accurate
polynomial expressions for the density and specifc volume of seawater
using the TEOS-10 standard. Ocean Modelling.
The software is available from http://www.TEOS-10.org