# gsw_SP_salinometer

`Practical Salinity from a salinometer`

## 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. ```
 ```Click for a more detailed description of calculating Practical Salinity from salinometer.```

## 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:

`3.05 (16th February, 2015)`

## 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`