gsw_SP_salinometer
  Practical Salinity from a salinometer
 Contents
  
 USAGE:
 SP = gsw_SP_salinometer(Rt,t)
DESCRIPTION:
Calculates Practical Salinity from salinometer (Rt), 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. 
INPUT:
Rt =  Conductivity ratio                                    [ unitless ]
t  =  in-situ temperature (ITS-90)                             [ deg C ]
t may have dimensions 1x1 or Mx1 or 1xN or MxN, where Rt is MxN.
OUTPUT:
SP  =  Practical Salinity on the PSS-78 scale               [ unitless ]
EXAMPLE:
Rt = [ 0.9345;  0.95123;  0.91807;  0.8886; 0.8169; 0.6687;]
t =  [28.7856; 28.4329; 22.8103; 10.2600; 6.8863; 4.4036;]
SP = gsw_SP_salinometer(Rt,t)
SP =
  32.431728787558541
  33.085035719966307
  31.800791917322833
  30.692490757036179
  27.979281308696116
  22.474597460508491
AUTHOR:
Trevor McDougall and Paul Barker                    [ help@teos-10.org ]
VERSION NUMBER:
3.01 (23rd May, 2011)
REFERENCES:
  Hill, K.D., T.M. Dauphinee and D.J. Woods, 1986: The extension of the
 Practical Salinity Scale 1978 to low salinities. IEEE J. Oceanic Eng.,
 OE-11, 1, 109 - 112.
 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.
   Unesco, 1983: Algorithms for computation of fundamental properties of
 seawater. Unesco Technical Papers in Marine Science, 44, 53 pp.
  The software is available from http://www.TEOS-10.org