# gsw_sound_speed_CT_exact

    sound speed

## Contents

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

## USAGE:

    sound_speed_CT_exact = gsw_sound_speed_CT_exact(SA,CT,p)

## DESCRIPTION:

    Calculates the speed of sound in seawater.

    Note that this function uses the full Gibbs function.  There is an
    alternative to calling this function, namely gsw_sound_speed(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).

    Click for a more detailed description of sound speed.

## INPUT:

    SA  =  Absolute Salinity                                          [ g/kg ]
    CT  =  Conservative 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:

    sound_speed_CT_exact  =  speed of sound in seawater                [ m/s ]

## 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;]

    sound_speed_CT_exact = gsw_sound_speed_CT_exact(SA,CT,p)

    sound_speed_CT_exact =

    1.0e+003 *

       1.542563864078558
       1.542689879196941
       1.530906501030040
       1.494531202378831
       1.487608409464569
       1.484268813221961

## AUTHOR:

    Paul Barker and 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. (2.17.1) 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