gsw_pot_rho
potential density
Contents
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.
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