# gsw_CT_from_enthalpy_exact

    Conservative Temperature as a function of enthalpy

## Contents

- USAGE:
- DESCRIPTION:
- INPUT:
- OUTPUT:
- EXAMPLE:
- AUTHOR:
- VERSION NUMBER:
- REFERENCES:

## USAGE:

    CT = gsw_CT_from_enthalpy_exact(SA,enthalpy)

## DESCRIPTION:

    Calculates Conservative Temperature with enthalpy as an input variable.

    Note that this function uses the full Gibbs function.  There is an
    alternative to calling this function, namely gsw_CT_from_enthalpy(SA,h,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 ]
    h   =  enthalpy                                                [ deg C ]

    SA & enthalpy need to have the same dimensions.

## OUTPUT:

    CT  =  Conservative Temperature                                [ deg C ]

## EXAMPLE:

    SA = [ 34.7118;  34.8915;  35.0256;  34.8472; 34.7366; 34.7324;]
    h = [1.15103e5; 1.14014e5; 0.92180e5; 0.43255e5; 0.33087e5; 0.26970e5]
    p = [     10;      50;     125;     250;     600;    1000;]

    CT = gsw_CT_from_enthalpy_exact(SA,h,p)

    CT =

      28.809854574967055
      28.439026514480602
      22.786196698875298
      10.226107012713658
       6.827159542010420
       4.323428479901965

## AUTHOR:

    Trevor McDougall and Paul Barker                   [ 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.

    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