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<p>​Dear NCL,<br>
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<p> I want to plot a difference between two model outputs (see the attached figure). In both plots, >0.2 (in the colorbar) are subject of interest. Simple difference plot shows difference in <0.2 background also. How do I specifically plot difference keeping
background <0.2 at constant in NCL? <br>
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<p> Thanks,<br>
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<p> Partha<br>
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