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<p>Dear colleges</p>
<p>hello</p>
<p>i dont know why the error has occured, because i defined the long-name , could you please help me?</p>
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<div><span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">res@gsnRightString=data_hdf4@units </span><br>
<span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">warning:Attempt to reference attribute (units) which is undefined</span><br>
<span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;"> res@sfXArray = conform(data_plt, time, 1)</span><br>
<span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">res@sfYArray = lev(nbin_2B_GEOPROF|:,nray_2B_GEOPROF|:)</span><br>
<span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;"> res@trGridType = "Triangularmesh"</span><br>
<span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;"> plot=gsn_csm_contour(xwks, data_plt, res)</span><br>
<span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">warning:ContourPlotInitialize: no valid values in scalar field; ContourPlot not possible:[errno=1101]</span><br>
<span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">stop record</span><br>
<span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">quit</span></div>
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