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Grads script to compare DAS fields

VERSION 1 
Created on: May 21, 2010 1:08 PM by Carlos Cruz - Last Modified:  May 21, 2010 1:08 PM by Carlos Cruz

Attached is a grads script that creates four "difference" subplots and prints out a png file. The "difference" is taken between zonally averaged-fields
of temperature, u-winds, v-winds and specific humidity.

 

To use:

 

1) Download the two scripts and place in your grads script directory (as defined by GASCRP environment variable) or in the same directory where you will be running grads.

 

2) start grads

 

3) Open the two netCDF files to be compared. Script assumes that they are eta files produced by the GEOS5-DAS at 2/3x1/2 deg. resolution (576x361); otherwise change accordingly.

 

4) Then , inside grads, "exec geos5diff.gs". The folowing is a PNG file produced by the script. Note that the model surface is at level 72.

g5dasDiff.png

 

Feel free to change colors, contour intervals, etc. For additional information look at http://www.iges.org/grads/gadoc/

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