<div dir="ltr">Kunal,<div><br></div><div>PLEASE look at your graph and understand what it is saying. First, your plot goes far above 200 hPa. There is a LOT of data above 200 hPa. This appears to be plotting all available data you have, which appears to be up to or at least near 0 hPa based on the tick marks (perhaps it is up to 10 hPa?). Also, there is no such level as 0 hPa in the atmosphere, so be careful using this for anything meaningful.</div><div><br></div><div>This ENTIRE PAGE of examples (see link below) shows you how to make the plot you are working on. It may have been sent to you in your previous posts - if not, it is very easily searchable if you type "pressure latitude plot" in the wonderful search box on the website. It is important to look at ALL of the examples, as most of the common functionality with these plots are presented in some combination of the examples. </div><div><br></div><div><a href="http://ncl.ucar.edu/Applications/height_lat.shtml">http://ncl.ucar.edu/Applications/height_lat.shtml</a><br></div><div><br></div><div>In this case, please refer to example 8. However, I don't think this will help you unless your data actually extend to 0 hPa (which I think is unlikely), as you can't plot data that you don't have. It might be a good idea to use printVarSummary to figure out the name of your vertical coordinate variable and then print(name_of_that_variable) so you can see how far it extends. I also think you might run into problems trying to have a logarithmic plot include a zero value, which would need to be infinitely far away from all other numbers. So, overall, be careful and you might need to accept that this is potentially all the data you can plot.</div><div><br></div><div><br></div><div>Kyle</div></div><div class="gmail_extra"><br clear="all"><div><div dir="ltr">----------------------------------------<div>Kyle S. Griffin</div><div>Department of Atmospheric and Oceanic Sciences</div><div>University of Wisconsin - Madison</div><div>Room 1421</div><div>1225 W Dayton St, Madison, WI 53706</div><div>Email: <a href="mailto:ksgriffin2@wisc.edu" target="_blank">ksgriffin2@wisc.edu</a></div></div></div>
<br><div class="gmail_quote">On Wed, Sep 10, 2014 at 7:24 AM, Kunal Bali <span dir="ltr"><<a href="mailto:kunal.bali9@gmail.com" target="_blank">kunal.bali9@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"><div><div>Dear NCL<br><br></div>I have plotted the pressure vs latitude graph.<br></div><div>But in that pressure levels values is not coming from 0 to 1000. its coming from 200 to 1000 hpa. I need to display pressure levels from 0 to 1000. <br><br></div><div>So how to correct the script. I used the script for this plot given below<br></div><div><div><div><br>load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl" <br>load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl" <br>load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"<br><br>begin<br> in = addfile("<a href="http://14-01.nc" target="_blank">14-01.nc</a>","r")<br> ts = in->CH4_VMR_A <br>zave = dim_avg_Wrap(ts) <br> wks = gsn_open_wks("pdf","zonal") <br> gsn_define_colormap(wks,"BlAqGrYeOrRe") <br> res = True <br> res@cnFillOn = True <br> res@mpFillOn = True <br> res@mpFillColors = (/ -1,-1,103,-1/) <br>; res@mpMinLatF = -70. <br>; res@mpMaxLatF = 70. <br><br> res@tiMainString = " Is it OK " <br><br> res@trYReverse = True ; reverse Y axis<br> res@trXReverse = True ; reverse X axis<br><br> plot=gsn_csm_contour(wks,zave(:,:),res) <br>;***********************************************<br>end<span class="HOEnZb"><font color="#888888"><br><br><br clear="all"><div><div dir="ltr"><div>Kunal Bali<br></div><div>Research Scholar <br></div><div>Radio & Atmospheric Science Division <br></div><div>CSIR - National Physical Laboratory<br></div><div>New Delhi - 110012<br><br></div><div><br></div><div><br></div><div><br></div><div><p style="margin:0px;border-collapse:collapse;font-family:Tahoma,Verdana;font-size:12px"><font color="#1F497D"><br></font></p></div></div></div>
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