<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><div> Dear GrADS colleagues,</div><div><br></div><div> I need to compare two datasets which are in the same spatial resolution (2.5 degrees), but slightly displaced between each other. For example, the forecasts stretches from longitude 0° to 2.5°, while the observation data (GPCP v2.1) goes from 1.25° to 3.75°. Please refer to the following figure for a visual sample of the problem: http://img824.imageshack.us/img824/7200/griddisplac.png.</div><div><br></div><div> Is there any way to interpolate the observed data to the same grid of forecasted data, so that both grids are entirely overlapped?</div><div><br></div><div> Thanks in advance,</div><div><br></div><div> Thiago Veloso. </div></td></tr></table><br>