# gsw_pot_rho_t_exact

**potential density**

## Contents

## 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.

## 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