gsw_SP_from_cndr

Practical Salinity from conductivity ratio

Contents

USAGE:

SP = gsw_SP_from_cndr(R,t,p)

DESCRIPTION:

Calculates Practical Salinity from conductivity ratio (R), using the
PSS-78 algorithm.  Note that the PSS-78 algorithm for Practical Salinity
is only valid in the range 2 < SP < 42.  The output, SP, of this 
function is constrained to be non-negative. 
TEOS-10
Click for a more detailed description of calculating
Practical Salinity from conductivity ratio.

INPUT:

R  =  Conductivity ratio                                    [ unitless ]
t  =  in-situ temperature (ITS-90)                             [ deg C ]
p  =  sea pressure                                              [ dbar ]
      ( ie. absolute pressure - 10.1325 dbar )
t & p may have dimensions 1x1 or Mx1 or 1xN or MxN, where R is MxN.

OUTPUT:

SP  =  Practical Salinity on the PSS-78 scale               [ unitless ]

EXAMPLE:

R = [ 1.3145;  1.3123;  1.1807;  0.8886; 0.8169; 0.7687;]
t = [28.7856; 28.4329; 22.8103; 10.2600; 6.8863; 4.4036;]
p = [     10;      50;     125;     250;    600;   1000;]
SP = gsw_SP_from_cndr(R,t,p)
SP =
  34.547219254816596
  34.727400381174370
  34.859100827188712
  34.679845200922003
  34.567856165219020
  34.561679175326645

AUTHOR:

17th April 1993.  Phil Morgan          [ help_gsw@csiro.au ]
  
MODIFIED:
   12th December 2003. Lindsay Pender, Converted to ITS-90.
   28th July 2010. by Paul Barker

VERSION NUMBER:

2.0 (3rd August, 2010)

REFERENCES:

Fofonoff, P. and R.C. Millard Jr. 1983: Algorithms for computation of
 fundamental properties of seawater. Unesco Tech. Pap. in Mar. Sci., 44,
 53 pp.
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 appendix E of this TEOS-10 Manual.
The software is available from http://www.TEOS-10.org