Re: [ferret_users] potential density

["william s. kessler" <william.s.kessler@xxxxxxxx>]

For potential density, definitely use the result of function THETA_FO  
rather than in situ temperature. It won't make too much difference in  
the upper water (in the tropics), but it is more correct (and easy to  
do).

Billy

On Aug 16, 2005, at 11:38 AM, David Wang wrote:

> Hello Ferreters,
>
> I just have a simple question to make sure,
> When calculating potential density using the function RHO_UN, which  
> temperature should be put into the second function argument, in  
> situ or potential temperature?
> rho_un(salt, temp, 0) or rho_un(salt, theta, 0) or it doesn't make  
> much difference in the upper ocean?
>
> Thanks,
> - David