<div dir="ltr"><div>I think you should examine your data. <br></div><div><br></div><div>sounding_1.txt has a value of pressure below 0  [-62]</div><div><br></div><div>I only looked at sounding_1.ncl</div><div><br></div><div>The attached can be used as a basis for you plotting.</div><div><br></div><div>%> ncl vert_profile_shum.ncl</div><div><br></div><div>Good Luck<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jun 24, 2020 at 11:15 AM Lyndz via ncl-talk <<a href="mailto:ncl-talk@mailman.ucar.edu">ncl-talk@mailman.ucar.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Dear NCL-experts,<div><br></div><div>I want to:</div><div><br></div><div>[1] plot the vertical profile of specific humidity from sounding data.</div><div>Input file: <b>sounding_1.txt</b>.</div><div>Attached is my script: <b>vert_profile_shum.ncl</b></div><div><b><br></b></div><div>I want the y-axis to be in log format but I can not plot this correctly. The output is also not good.</div><div><br></div><div>I got the following warning messages:</div><div><br></div><div>





<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><i>warning:XyPlotSetValues:xyYStyle is NhlLOG:trYMinF can't be <= 0.0:Setting xyComputeYMin to True</i></span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><i>warning:XyPlotSetValues:The Minimum Y value is <= 0.0 NhlLOG invalid:Changing xyYStyle to NhlLINEAR</i></span></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)">------------------------------</p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><br></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif">[2] In addition, I have another sounding data with different pressure level and height: <b>sounding_2.txt</b></font></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;line-height:normal;color:rgb(0,0,0)"><font face="arial, sans-serif"><b><br></b></font></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;line-height:normal;color:rgb(0,0,0)">I want to combine the two profiles in one plot but I am not sure how to do this.</p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;line-height:normal;color:rgb(0,0,0)"><br></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;line-height:normal;color:rgb(0,0,0)"><br></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;line-height:normal;color:rgb(0,0,0)">I'll appreciate any help on this.</p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;line-height:normal;color:rgb(0,0,0)"><br></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;line-height:normal;color:rgb(0,0,0)"><br></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;line-height:normal;color:rgb(0,0,0)">Sincerely,</p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;line-height:normal;color:rgb(0,0,0)">Lyndz</p></div></div>
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