Calculating density using temp. and salinity?

[thethedev]

Hi
Does anyone know how to work out the density of water using just the temperature and the salinity?
There must be a formula as I've found a few sites that do the conversion for you but I need the actual formula.
Any help at all is appreciated thanks

 

[Spinnor]

Maybe not much help but my web browser allows me to view the web page source which for the following page has the formula as part of the web page:

from

http://www.csgnetwork.com/h2odenscalc.html


function rhoscalc (rho,conc,temp) { // temp and conc dependent density

var rhos, A, B, temp;

A = 0.824493 - 0.0040899*temp + 0.000076438*Math.pow(temp,2)-0.00000082467*Math.pow(temp,3) + 0.0000000053675*Math.pow(temp,4);

B = -0.005724 + 0.00010227*temp - 0.0000016546*Math.pow(temp,2);

rhos = rho + A*conc + B*Math.pow(conc,(3/2)) + 0.00048314*Math.pow(conc,2);

return rhos;

}


You might be able to reverse engineer the formula you need?