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Hello Lyndz,
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<div class="">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 class="">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" class="">http://www.ncl.ucar.edu/Document/Functions/Built-in/vinth2p.shtml</a></div>
<div class="">"Interpolates CAM (Community Atmosphere Model) hybrid coordinates to pressure coordinates.”</div>
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<div class="">Cheers,</div>
<div class="">-Jonathan</div>
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<div class="">On Oct 16, 2020, at 8:43 AM, Lyndz via ncl-talk <<a href="mailto:ncl-talk@mailman.ucar.edu" class="">ncl-talk@mailman.ucar.edu</a>> wrote:</div>
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<div class="">Dear NCL experts,</div>
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<div class=""><b class="">Problem:</b> </div>
<div class="">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 class="">Any suggestions on how I can do this in NCL?</div>
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<div class=""><b class="">Here's my input file:</b></div>
<div class=""><a href="https://www.dropbox.com/s/wt1q4wwnjrg4nvo/q_ein75-RegCM_1998-2005_DJF_1.nc?dl=0" class="">https://www.dropbox.com/s/wt1q4wwnjrg4nvo/q_ein75-RegCM_1998-2005_DJF_1.nc?dl=0</a><br class="">
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<div class=""><b class="">What I have so far:</b></div>
<div class="">Attached are the script and output images.</div>
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<div class="">I'll appreciate any help on this matter.</div>
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<div class="">Sincerely,</div>
<div class="">Lyndz</div>
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<span id="cid:f_kgbvondo1"><q_trans_ein75-RegCM_DJF.000002.png></span><span id="cid:f_kgbvoncp0"><q_trans_ein75-RegCM_DJF.000001.png></span><span id="cid:f_kgbvxhpq2"><transect_q_ein75-RegCM.ncl></span>_______________________________________________<br class="">
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