<div dir="ltr">Hi Jonathan,<div><br></div><div>The input file that I sent is from the post processed output of ICTP-RegCM. </div><div>I have already converted the raw output from sigma to pressure levels.</div><div><br></div><div><br></div><div>Sincerely,</div><div>Lyndz</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Oct 16, 2020 at 2:51 PM Buzan, Jonathan <<a href="mailto:jbuzan@purdue.edu">jbuzan@purdue.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">
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Hello Lyndz,
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<div>From a quick glance, it looks like you did not transform your data from the original model coordinate system into pressure coordinates. A hybrid coordinate system is terrain following, so no topographic features will show up in your plots. This
coordinate system is not true height in pressure or meters, but a hybrid.</div>
<div>If you are using CAM, you might want to try this function: <a href="http://www.ncl.ucar.edu/Document/Functions/Built-in/vinth2p.shtml" target="_blank">http://www.ncl.ucar.edu/Document/Functions/Built-in/vinth2p.shtml</a></div>
<div>"Interpolates CAM (Community Atmosphere Model) hybrid coordinates to pressure coordinates.”</div>
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<div>Cheers,</div>
<div>-Jonathan</div>
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<div>On Oct 16, 2020, at 8:43 AM, Lyndz via ncl-talk <<a href="mailto:ncl-talk@mailman.ucar.edu" target="_blank">ncl-talk@mailman.ucar.edu</a>> wrote:</div>
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<div>Dear NCL experts,</div>
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<div><b>Problem:</b> </div>
<div>I am plotting a cross section along two lat-lon points using the transect example in NCL. My input file has no topography nor hgt variable. I want to mask the topography since the transect crosses an Island.</div>
<div>Any suggestions on how I can do this in NCL?</div>
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<div><b>Here's my input file:</b></div>
<div><a href="https://www.dropbox.com/s/wt1q4wwnjrg4nvo/q_ein75-RegCM_1998-2005_DJF_1.nc?dl=0" target="_blank">https://www.dropbox.com/s/wt1q4wwnjrg4nvo/q_ein75-RegCM_1998-2005_DJF_1.nc?dl=0</a><br>
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<div><b>What I have so far:</b></div>
<div>Attached are the script and output images.</div>
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<div>I'll appreciate any help on this matter.</div>
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<div>Sincerely,</div>
<div>Lyndz</div>
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<span id="gmail-m_-4500694394979506899cid:f_kgbvondo1"><q_trans_ein75-RegCM_DJF.000002.png></span><span id="gmail-m_-4500694394979506899cid:f_kgbvoncp0"><q_trans_ein75-RegCM_DJF.000001.png></span><span id="gmail-m_-4500694394979506899cid:f_kgbvxhpq2"><transect_q_ein75-RegCM.ncl></span>_______________________________________________<br>
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