# gsw_pot_rho

    potential density

## Contents

- USAGE:
- DESCRIPTION:
- INPUT:
- OUTPUT:
- EXAMPLE:
- AUTHOR:
- VERSION NUMBER:
- REFERENCES:

## USAGE:

    pot_rho = gsw_pot_rho(SA,t,p,pr)

## DESCRIPTION:

    Calculates potential density of seawater.  Note. 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 ]
           ( ie. absolute pressure - 10.1325 dbar )
    pr  =  reference pressure                                       [ dbar ]
           ( ie. reference absolute pressure - 10.1325 dbar )

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

## OUTPUT:

    pot_rho  =  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;]
    pr  = 0;

    pot_rho = gsw_pot_rho(SA,t,p,pr)

    pot_rho =

    1.0e+003 *

     1.021798145811089
     1.022052484416980
     1.023893583651958
     1.026667621124443
     1.027107230868492
     1.027409631264134

## AUTHOR:

    David Jackett, Trevor McDougall and Paul Barker [ help_gsw@csiro.au ]

## VERSION NUMBER:

    2.0 (23rd July, 2010)

## 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