# gsw_entropy_from_CT

    specific entropy of seawater as a function of
    Conservative Temperature

## Contents

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

## USAGE:

    entropy  =  gsw_entropy_from_CT(SA,CT)

## DESCRIPTION:

    Calculates specific entropy of seawater.

    Click for a more detailed description of calculating
    entropy from Conservative Temperature.

## INPUT:

    SA  =  Absolute Salinity                                        [ g/kg ]
    CT  =  Conservative Temperature (ITS-90)                       [ deg C ]

    SA & CT need to have the same dimensions.

## OUTPUT:

    entropy  =  specific entropy                                [ J/(kg*K) ]

## 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;]

    entropy  =  gsw_entropy_from_CT(SA,CT)

    entropy =

     400.3892
     395.4378
     319.8668
     146.7910
      98.6471
      62.7919

## AUTHOR:

    Trevor McDougall and Paul Barker [ help_gsw@csiro.au ]

## VERSION NUMBER:

    2.0 (13 October, 2010)

## 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 appendix A.10 of this TEOS-10 Manual.

    The software is available from http://www.TEOS-10.org