gsw_sigma0_pt0_exact

potential density anomaly

Contents

USAGE:

sigma0_pt0_exact = gsw_sigma0_pt0_exact(SA,pt0)

DESCRIPTION:

Calculates potential density anomaly with reference sea pressure of
zero (0) dbar.
TEOS-10 
Click for a more detailed description of potential
density anomaly with p_ref of 0 dbar (sigma_0).

INPUT:

SA   =   Absolute Salinity                                      [ g/kg ]
pt0  =   potential temperature with respect to a               [ deg C ]
         reference sea pressure of 0 dbar (ITS-90)
SA & pt0 need to have the same dimensions.

OUTPUT:

sigma0_pt0_exact  =  potential density anomaly with           [ kg/m^3 ]
                     respect to a reference pressure of 0 dbar,
                     that is, potential density minus 1000 kg/m^3.

EXAMPLE:

SA = [34.7118; 34.8915; 35.0256; 34.8472; 34.7366; 34.7324;]
pt0 = [28.7832; 28.4209; 22.7850; 10.2305;  6.8292;  4.3245;]
sigma0_pt0_exact = gsw_sigma0_pt0_exact(SA,pt0)
sigma0_pt0_exact =
  21.798144753257930
  22.052511933456117
  23.893563694775708
  26.667625207411902
  27.107234985050809
  27.409632401587487

AUTHOR:

Trevor McDougall & 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. (3.6.1) of this TEOS-10 Manual.
The software is available from http://www.TEOS-10.org