gsw_SA_from_rho_t_exact

Absolute Salinity from density measurements

Contents

USAGE:

SA = gsw_SA_from_rho_t_exact(rho,t,p)

DESCRIPTION:

Calculates the Absolute Salinity of a seawater sample, for given values
of its density, in-situ temperature and sea pressure (in dbar).
TEOS-10 
Click for a more detailed description of calculating
Absolute Salinity from density measurements.

INPUT:

rho =  density of a seawater sample (e.g. 1026 kg/m^3).       [ kg/m^3 ]
 Note. This input has not had 1000 kg/m^3 subtracted from it.
   That is, it is 'density', not 'density anomaly'.
t   =  in-situ temperature (ITS-90)                            [ deg C ]
p   =  sea pressure                                             [ dbar ]
       ( i.e. absolute pressure - 10.1325 dbar )
rho & t need to have the same dimensions.
p may have dimensions 1x1 or Mx1 or 1xN or MxN, where rho & t are MxN.

OUTPUT:

SA  =  Absolute Salinity.                                       [ g/kg ]
 Note. This is expressed on the Reference-Composition Salinity
   Scale of Millero et al. (2008).

EXAMPLE:

rho = [1021.839; 1022.262; 1024.426; 1027.792; 1029.839; 1032.002;]
t   = [ 28.7856;  28.4329;  22.8103;  10.2600;   6.8863;   4.4036;]
p   = [      10;       50;      125;      250;      600;     1000;]
SA = gsw_SA_from_rho_t_exact(rho,t,p)
  34.710229656274947
  34.890576832371579
  35.023324209337552
  34.849520963839424
  34.738248094721804
  34.731883839457986

AUTHOR:

Trevor McDougall & Paul Barker    [ help@teos-10.org ]

VERSION NUMBER:

3.01 (23rd May, 2011)

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 2.5 of this TEOS-10 Manual.
Millero, F. J., R. Feistel, D. G. Wright, and T. J. McDougall, 2008:
 The composition of Standard Seawater and the definition of the
 Reference-Composition Salinity Scale, Deep-Sea Res. I, 55, 50-72.
The software is available from http://www.TEOS-10.org