[gradsusr] Differencing data with different grid spacing between 2 files

[Sam Wilson]

Dimri,

Thanks – I will give that a shot.

Best,
Sam


From: Dr AP DIMRI <apdimri at hotmail.com<mailto:apdimri at hotmail.com>>
Reply-To: GrADS Users Forum <gradsusr at gradsusr.org<mailto:gradsusr at gradsusr.org>>
Date: Fri, 6 Jan 2012 10:35:52 +0530
To: <gradsusr at gradsusr.org<mailto:gradsusr at gradsusr.org>>
Subject: Re: [gradsusr] Differencing data with different grid spacing between 2 files

Sam,
Please use 'lterp' funciton.


Sincerely
Dimri
______________________________
Dimri, A. P.
School of Environmental Sciences
Jawaharlal Nehru University
New Delhi, India
______________________________


________________________________
From: sam at surfline.com<mailto:sam at surfline.com>
To: gradsusr at gradsusr.org<mailto:gradsusr at gradsusr.org>
Date: Fri, 6 Jan 2012 04:54:59 +0000
Subject: [gradsusr] Differencing data with different grid spacing between 2 files

Hi all,

I'm trying to difference two data files, each with it's own control file, with different grid resolution.  One is on a 1 X 1 degree grid and the other is 0.25 X 0.25 degrees.  I understand that there is a regrid function built into grads which will map the data from one grid to the other, however I haven't had any luck getting that function to work.

The version of grads I'm working on is Version 2.0.a1.  Is the regrid function only available on later versions?

Also, does the grid resolution have to be the same in order to difference the data between the two files?

Thanks for any help you can provide.

Sam


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