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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have attached a grads script that plots WRF-Chem output of carbon monoxide (co) on the 850 hPa level co_850hPa_sequence.gs for a sequence of times. When the ctl_plevs.ctl (attached) is open, the grads plots the data correctly. However, when bb_plevs.ctl (attached) is open, the script does not plot the data. I do not think the actual WRF-Chem netcdf output is corrupt because I am able to look at it with ncview. This output appears to be fine. The problem I have described above happens with grads 2.0.a8 and 2.0.1. Moreover, this error happens with bb_plevs.ctl created by ARWpost v2.2 and v3, even after recompiling them a couple of times.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>What could be happening? How can I resolve it? <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks <o:p></o:p></p><p class=MsoNormal>Jonathan<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b><span style='font-size:12.0pt'>Jonathan Wynn Smith, Ph. D.<o:p></o:p></span></b></p><p class=MsoNormal><u>jonathan.smith@nasa.gov<o:p></o:p></u></p><p class=MsoNormal>NASA-Goddard Space Flight Center<o:p></o:p></p><p class=MsoNormal>Code 614-Atmospheric Chemistry and Dynamics Branch <o:p></o:p></p><p class=MsoNormal>Greenbelt, MD 20771<o:p></o:p></p><p class=MsoNormal>301-614-5956<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>