# gsw_rho_CT_exact

`in-situ density`

## USAGE:

`rho_CT_exact = gsw_rho_CT_exact(SA,CT,p)`

## DESCRIPTION:

```Calculates in-situ density from Absolute Salinity and Conservative
Temperature.```
```Note that potential density with respect to reference pressure, p_ref, is
obtained by calling this function with the pressure argument being p_ref
(i.e. "gsw_rho_CT_exact(SA,CT,p_ref)").```
```Note that this function uses the full Gibbs function.  There is an
alternative to calling this function, namely gsw_rho(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 density.`

## INPUT:

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

`rho_CT_exact   =  in-situ density                             [ kg/m^3 ]`

## 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;]
p =  [     10;      50;     125;     250;     600;    1000;]```
`rho_CT_exact = gsw_rho_CT_exact(SA,CT,p)`
`rho_CT_exact =`
`1.0e+003 *`
```   1.021840179764021
1.022262699103554
1.024427709285783
1.027790199901620
1.029837716779620
1.032002400877215```

## 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.
See Eqn. (2.8.2) 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`