# gsw_O2sol_SP_pt

    solubility of O2 in seawater

## Contents

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

## USAGE:

    O2sol = gsw_O2sol_SP_pt(SP,pt)

## DESCRIPTION:

    Calculates the oxygen, O2, concentration expected at equilibrium with
    air at an Absolute Pressure of 101325 Pa (sea pressure of 0 dbar)
    including saturated water vapor.  This function uses the solubility coefficients
    derived from the data of Benson and Krause (1984), as fitted by Garcia
    and Gordon (1992, 1993).

    Note that this algorithm has not been approved by IOC and is not work
    from SCOR/IAPSO Working Group 127. It is included in the GSW
    Oceanographic Toolbox as it seems to be oceanographic best practice.

## INPUT:

    SP  =  Practical Salinity  (PSS-78)                         [ unitless ]
    pt  =  potential temperature                                   [ deg C ]
           with reference sea pressure (pr) = 0 dbar.

    SP & pt need to have the same dimensions.

## OUTPUT:

    O2sol = solubility of oxygen                                 [ umol/kg ]

## EXAMPLE:

    SP = [34.7118; 34.8915; 35.0256; 34.8472; 34.7366; 34.7324;]
    pt = [28.8099; 28.4392; 22.7862; 10.2262;  6.8272;  4.3236;]

    O2sol = gsw_O2sol_SP_pt(SP,pt)

    O2sol =

       1.0e+002 *

       1.946825431692940
       1.956135062814438
       2.146559360234014
       2.735652832698713
       2.951580761415903
       3.129598716631408

## AUTHOR:

    Roberta Hamme, Paul Barker and Trevor McDougall      [ 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.

    Benson, B.B., and D. Krause, 1984: The concentration and isotopic
     fractionation of oxygen dissolved in freshwater and seawater in
     equilibrium with the atmosphere. Limnology and Oceanography, 29,
     620-632.

    Garcia, H.E., and L.I. Gordon, 1992: Oxygen solubility in seawater:
     Better fitting equations. Limnology and Oceanography, 37, 1307-1312.

    Garcia, H.E., and L.I. Gordon, 1993: Erratum: Oxygen solubility in
     seawater: better fitting equations. Limnology and Oceanography, 38,
     656.

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