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<div style="margin-bottom: 0cm">Dear all,</div>
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<ol><li><div style="margin-bottom: 0cm">I want to obtain the difference
between the precipitation forecast (1.875X1.25 resolution) and
the observed rainfall (2.5X2.5 resolution).</div>
</li><li><div style="margin-bottom: 0cm;">These are the commands I am using :</div></li></ol>reinit'<br>'set display color white'<br>'c'<br>'sdfopen oo.nc' *observed<br>'sdfopen ff.nc' * forecasted<br>'set dfile 1'<br>'set t 1 14'<br>'set z 1'<br>'set lon 10 55'<br>'set lat -35 -10'<br>'define obs=ave(prcp_est,t=1,t=14)'<br><br>'set dfile 2'<br>'set t 1 14'<br>'set z 1'<br>'set lon 10 55'<br>'set lat -35 -10'<br>'define gg=ave(precip*86400,t=1,t=14)'<br>'define forecast=re(gg,2.5,2.5,ba)' * regridding the forecast<br>'define difference=forecast-obs'<br>'d difference'<br><br>
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<ol start="3"><li><div style="margin-bottom: 0cm">But Iam getting the following
error message:</div>Data Request Error: Invalid grid coordinates<br> World coordinates convert to non-integer grid coordinates<br> Variable = obs Dimension = 3 <br> Error ocurred at column 10<br>DEFINE error: Invalid expression <br></li></ol><br>4. Help is needed<br><br><br>Arlindo<br><br><br><br>
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