# gsw_sound_speed_t_exact

**sound speed**

## Contents

## USAGE:

sound_speed_t_exact = gsw_sound_speed_t_exact(SA,t,p)

## DESCRIPTION:

Calculates the speed of sound in seawater.

## INPUT:

SA = Absolute Salinity [ g/kg ]
t = in-situ temperature (ITS-90) [ deg C ]
p = sea pressure [ dbar ]
( i.e. absolute pressure - 10.1325 dbar )

SA & t need to have the same dimensions.
p may have dimensions 1x1 or Mx1 or 1xN or MxN, where SA & t are MxN.

## OUTPUT:

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

## EXAMPLE:

SA = [34.7118; 34.8915; 35.0256; 34.8472; 34.7366; 34.7324;]
t = [28.7856; 28.4329; 22.8103; 10.2600; 6.8863; 4.4036;]
p = [ 10; 50; 125; 250; 600; 1000;]

sound_speed_t_exact = gsw_sound_speed_t_exact(SA,t,p)

sound_speed_t_exact =

1.0e+003 *

1.542615803587414
1.542703534065789
1.530844979136360
1.494409996920661
1.487377102518027
1.483934609078705

## AUTHOR:

David Jackett, 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.

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