# gsw_pot_rho_t_exact

`potential density`

## USAGE:

`pot_rho_t_exact = gsw_pot_rho_t_exact(SA,t,p,p_ref)`

## DESCRIPTION:

```Calculates potential density of seawater.  Note that this
function outputs potential density, not potential density
anomaly; that is, 1000 kg/m^3 is not subtracted.``` ```Click for a more detailed description of potential density.```

## 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 )
p_ref = reference pressure                                     [ dbar ]
( i.e. reference absolute pressure - 10.1325 dbar )```
```SA & t need to have the same dimensions.
p & p_ref may have dimensions 1x1 or Mx1 or 1xN or MxN, where SA & t
are MxN```

## OUTPUT:

```pot_rho_t_exact  =  potential density                        [ kg/m^3 ]
(not potential density anomaly)```

## 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;]
p_ref  = 0```
`pot_rho_t_exact = gsw_pot_rho_t_exact(SA,t,p,p_ref)`
`pot_rho_t_exact =`
`1.0e+003 *`
```   1.021798145811089
1.022052484416980
1.023893583651958
1.026667621124443
1.027107230868492
1.027409631264134```

## AUTHOR:

`David Jackett, 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.
See section 3.4 of this TEOS-10 Manual.```
`The software is available from http://www.TEOS-10.org`