# gsw_delta_SA

    Absolute Salinity anomaly

## Contents

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

## USAGE:

    delta_SA = gsw_delta_SA(p,long,lat)

## DESCRIPTION:

    Calculates the Absolute Salinity anomaly.

    Click for a more detailed description of the
    Absolute Salinity anomaly.

## INPUT:

    p     =  sea pressure                                           [ dbar ]
            (ie. absolute pressure - 10.1325 dbar)
    long  =  longitude in decimal degrees                     [ 0 ... +360 ]
                                                        or [ -180 ... +180 ]
    lat   =  latitude in decimal degrees north               [ -90 ... +90 ]

    p, long & lat need to have the same dimensions.

## OUTPUT:

    delta_SA  =  Absolute Salinity anomaly                          [ g/kg ]

## EXAMPLE:

    p =    [   10;   50;  125;  250;  600; 1000;]
    lat =  [    4;    4;    4;    4;    4;    4;]
    long = [  188;  188;  188;  188;  188;  188;]

    delta_SA = gsw_delta_SA(p,long,lat)

    delta_SA =              in_ocean =

     0.000167785807437       1
     0.000268675908040       1
     0.000665539507353       1
     0.002694303422857       1
     0.005626663909471       1
     0.009396653216531       1

## AUTHOR:

    David Jackett, Paul Barker and Trevor McDougall [ 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 http://www.TEOS-10.org
      See section 2.5 of this TEOS-10 Manual.

    McDougall, T.J., D.R. Jackett and F.J. Millero, 2010: An algorithm
     for estimating Absolute Salinity in the global ocean.  Submitted to
     Ocean Science. A preliminary version is available at Ocean Sci. Discuss.,
     6, 215-242.
     http://www.ocean-sci-discuss.net/6/215/2009/osd-6-215-2009-print.pdf

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