<div dir="ltr">Dear GrADS user,<div><br></div><div style>I want some help regarding the problem which i am facing right now. </div><div style><br></div><div style>I want to show the summer precipitation average. I prepared station data files for each month (June-Sep) using station observation data and then interpolate with CPC precipitation data using oacres function. It gives me nice view of station precipitation but when i tried to sum up all the summer months station data and interpolate with CPC precipitation data it gives Define error </div>
<div style><br></div><div style>"Define not yet valid for station data",</div><div style>"Default file is a station data file".</div><div style><br></div><div style> The error message is attached as well. Kindly help me.</div>
<div style><br></div><div style>Thanks</div><div style><br></div><div style>With Best Regards,</div><div style><br></div><div style>Mehwish</div><div style><br></div><div style> </div></div>