<div dir="ltr"><div><div><div><div><div><div>Hi Chang,<br></div>As you likely know there are numerous height/latitude examples here: <br><a href="http://www.ncl.ucar.edu/Applications/height_lat.shtml">http://www.ncl.ucar.edu/Applications/height_lat.shtml</a><br><br></div>If you want to overlay a zonal mean on top of a height (Y-axis) by latitude (x-axis) plot I would recommend creating each plot separately, and then using gsn_add_annotation to add the zonal mean plot to the height/latitude plot. <br><a href="http://www.ncl.ucar.edu/Applications/annotate.shtml">http://www.ncl.ucar.edu/Applications/annotate.shtml</a><br><br></div>You will have to work on getting the <a href="http://www.ncl.ucar.edu/Document/Graphics/Resources/am.shtml#amJust"><em>amJust</em></a>,
<a href="http://www.ncl.ucar.edu/Document/Graphics/Resources/am.shtml#amOrthogonalPosF"><em>amOrthogonalPosF</em></a>
and <a href="http://www.ncl.ucar.edu/Document/Graphics/Resources/am.shtml#amParallelPosF"><em>amParallelPosF</em></a> settings correct, but it should be quite possible.<br><br></div>Using the overlay function may be another possibility but I do not believe that will work as your two plots do not share the same Y-axis coordinate values (pressure vs. U-wind values).<br><br></div>Hope that helps. If not or if you have any other questions, please respond to the ncl-talk email list.<br></div>Adam<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jul 16, 2015 at 11:27 AM, Xi Chang <span dir="ltr"><<a href="mailto:xi.chang01@gmail.com" target="_blank">xi.chang01@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi NCL,<div><br></div><div>I have zonal mean tropopause height data H (units: hPa) as a function of latitude (-90:90). How could I plot this values by using "gsn_csm_pres_hgt" function, so that I can overlay them with zonal mean wind U data.</div><div><br></div><div>Thanks for any hints.</div><span class="HOEnZb"><font color="#888888"><div>Chang</div></font></span></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><div><span><font color="#888888">Adam Phillips <br></font></span></div><span><font color="#888888">Associate Scientist, </font></span><span><font color="#888888">Climate and Global Dynamics Laboratory, NCAR<br></font></span></div></div><div><span><font color="#888888"><a href="http://www.cgd.ucar.edu/staff/asphilli/" target="_blank">www.cgd.ucar.edu/staff/asphilli/</a> </font></span><span><font color="#888888">303-497-1726 </font></span></div><span><font color="#888888"></font></span><div><div><span><font color="#888888"><br></font></span><div><span><font color="#888888"><a href="http://www.cgd.ucar.edu/staff/asphilli" target="_blank"></a></font></span></div></div></div></div></div></div></div></div></div></div></div>
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