# gsw_dilution_coefficient_t_exact

`dilution coefficient of seawater`

## USAGE:

`dilution_coefficient_t_exact = gsw_dilution_coefficient_t_exact(SA,t,p)`

## DESCRIPTION:

```Calculates the dilution coefficient of seawater.  The dilution
coefficient of seawater is defined as the Absolute Salinity times the
second derivative of the Gibbs function with respect to Absolute
Salinity, that is, SA.*g_SA_SA.```

## 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:

`dilution_coefficient_t_exact  =  dilution coefficient   [ (J/kg)(kg/g) ]`

## 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;]```
`dilution_coefficient_t_exact = gsw_dilution_coefficient_t_exact(SA,t,p)`
`dilution_coefficient_t_exact =`
```  79.140034211532040
79.104983526833820
77.503312016847389
73.535062653715272
72.483378545466564
71.760667498673087```

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