[ferret_users] calculating spatial root mean square error

[Satish Bastola <bastola@xxxxxxxxxxxxxxxxxxx>]

Dear ferret user

I have two climatological data (12 months). I was trying to estimate 
the  root means square error (spatially) between two climatological data 
set. I would be very much thankful for your help and suggestion.

to calculate the spatial root mean square error  between two data set 
(one obs and next estimtaed)i tried the following way..
the two climatological data set x1.nc and x2.nc
use climatological axis
use x1.nc
use x2.nc
!grid defination
define axis/x=1:5:1
define axis/y=2:20:1
define grid/x=xrfe/y=yrfe/t=month_reg grfe
!manupulation
let diff=x1[gx=grfe,gy=grfe,gt=grfe]-x2[gx=grfe, gy=grfe,gt=grfe]
let sdiff=diff[gx=grfe, gy=grfe,gt=grfe]^2
let ave=sdiff[ts=month_reg@ave]
let ave1=ave^0.5


!!
truly
satish bastola