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[ferret_users]:potential density and temperature
Hi all,
I've got some Temperature and salinity data (from CARS2006).
Id'like to compute potential density, so i just have to compute rho
using rho_un with the potential temperature. is it ok?
so i compute potential temperature with THETA_FO, but when i compare rho
and rho_pot i don't find much différence.
my script is:
use temperature_cars2006a.nc
use salinity_cars2006a.nc
let salt=mean[d=2]
let temp=mean[d=1]
let rho=rho_un(salt,temp,Z[G=poTEMP])
let potemp=THETA_FO(SALT,TEMP,Z[G=TEMP],0)
let rhop=rho_un(salt,potemp,Z[G=poTEMP])
i joins you a plot with rho and rho_pot on a same point (18S,160E)
what do you think of it?
whats wrong with my script? may by reference level?
thanks
Xavier
Attachment:
rho.ps
Description: PostScript document
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