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--></style></head><body bgcolor=white lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri;mso-fareast-language:EN-US'>Hi Adam,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri;mso-fareast-language:EN-US'>Thanks for the clarification. Makes sense and this is one to save in memory for next time.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri;mso-fareast-language:EN-US'>Best,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri;mso-fareast-language:EN-US'>/M<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:Calibri;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-family:Calibri;color:black'>From: </span></b><span style='font-family:Calibri;color:black'>Adam Phillips <asphilli@ucar.edu><br><b>Date: </b>Wednesday, 14 December 2016 at 23:10<br><b>To: </b>Marston Johnston <shejo284@gmail.com><br><b>Cc: </b>"ncl-talk@ucar.edu" <ncl-talk@ucar.edu><br><b>Subject: </b>Re: [ncl-talk] polar plot and gsnAddCyclic<o:p></o:p></span></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Hi Marston,<o:p></o:p></p><div><p class=MsoNormal>Thanks for providing your data file and a easy to run script as that always makes debugging so much easier. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Looking at your longitudes they are regularly spaced from 1.267E to 357.349E by 2.5254 degrees. I believe the gsn_add_cyclic error message is coming in because the spacing between your first and last longitudes is much larger than the spacing between all other neighboring longitudes: 3.91 degrees. Thus, you can set gsnAddCyclic = True (=the default) and NCL will interpolate between the first and last longitudes when plotting, but it will warn you that it isn't sure it should be doing this.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thus, if you are fine with NCL interpolating over the larger distance over the prime meridian I do not think you need to worry about the error messages. If you really want to get rid of them you can try interpolating to a new longitude between your first and last longitudes (that will result in very irregular longitude spacing and still might not get rid of the error messages) or interpolating to a new grid (say a 2.5 degree grid that starts at 0).<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Hope that helps!<o:p></o:p></p></div><div><p class=MsoNormal>Adam <o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Wed, Dec 14, 2016 at 12:25 PM, Marston Johnston <<a href="mailto:shejo284@gmail.com" target="_blank">shejo284@gmail.com</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'>Hi Dennis,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'>Appreciate you looking into this.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'>My script: plot_tr_stats.ncl</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'>Data: stat_trs_scl_VOR850_neg_1.nc</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'>The files are uploaded.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'>Best,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'>/M</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:Calibri'> </span><o:p></o:p></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-family:Calibri;color:black'>From: </span></b><span style='font-family:Calibri;color:black'><<a href="mailto:ncl-talk-bounces@ucar.edu" target="_blank">ncl-talk-bounces@ucar.edu</a>> on behalf of Dennis Shea <<a href="mailto:shea@ucar.edu" target="_blank">shea@ucar.edu</a>><br><b>Date: </b>Wednesday, 14 December 2016 at 18:21<br><b>To: </b>Marston Johnston <<a href="mailto:marston.johnston@gu.se" target="_blank">marston.johnston@gu.se</a>><br><b>Cc: </b>"<a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a>" <<a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a>><br><b>Subject: </b>Re: [ncl-talk] polar plot and gsnAddCyclic</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><div><div><div><div><div><div><div><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>I think you will have to provide a clean script and the data for ncl-talk to address this issue.<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>ftp <a href="http://ftp.cgd.ucar.edu" target="_blank">ftp.cgd.ucar.edu</a><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>anonymous<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>your_email<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>cd incoming<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>put ... script ...<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>put ... data ...<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>quit<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>Let ncl-talk know after successful completion of the ftp transfer.<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>THX<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Mon, Dec 12, 2016 at 5:32 AM, Marston Johnston <<a href="mailto:marston.johnston@gu.se" target="_blank">marston.johnston@gu.se</a>> wrote:<o:p></o:p></p><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt'>Hi,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt'>I’m trying to make some plot using the polar stereographic projection.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt'>When I set res@gsnAddCyclic = False, everything works well but the plots have a gap at 0 deg longitude. However, whenever I set this to True, I get the standard warning that my longitude data doesn’t go to 360, but I don’t get a gap in the data. <br>Is there a way to remove the gap and the warning? I was thinking of just extending the longitude copying the last longitude values to this new line, but searching for something more elegant. <br>Note: this doesn’t happen when using Mercator projection.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt'>/M</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#0070C0'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#0070C0'>Marston S. Johnston, PhD</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#0070C0'>Department of Earth Sciences</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#0070C0'>University of Gothenburg, Sweden</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#0070C0'>Email: <a href="mailto:marston.johnston@gu.se" target="_blank"><span style='color:#0070C0'>marston.johnston@gu.se</span></a></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#0070C0'>SkypeID: marston.johnston </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#0070C0'>Phone: <a href="tel:+46%2031%20786%2049%2001" target="_blank">+46-31-7864901</a> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#0070C0'>Only the fruitful thing is true!</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='color:#0070C0'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><br>_______________________________________________<br>ncl-talk mailing list<br><a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a><br>List instructions, subscriber options, unsubscribe:<br><a href="http://mailman.ucar.edu/mailman/listinfo/ncl-talk" target="_blank">http://mailman.ucar.edu/mailman/listinfo/ncl-talk</a><o:p></o:p></p></blockquote></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>_______________________________________________ ncl-talk mailing list <a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a> List instructions, subscriber options, unsubscribe: <a href="http://mailman.ucar.edu/mailman/listinfo/ncl-talk" target="_blank">http://mailman.ucar.edu/mailman/listinfo/ncl-talk</a> <o:p></o:p></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><br>_______________________________________________<br>ncl-talk mailing list<br><a href="mailto:ncl-talk@ucar.edu">ncl-talk@ucar.edu</a><br>List instructions, subscriber options, unsubscribe:<br><a href="http://mailman.ucar.edu/mailman/listinfo/ncl-talk" target="_blank">http://mailman.ucar.edu/mailman/listinfo/ncl-talk</a><o:p></o:p></p></blockquote></div><p class=MsoNormal><br><br clear=all><o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><div><div><div><div><div><div><div><div><div><div><p class=MsoNormal><span style='color:#888888'>Adam Phillips </span><o:p></o:p></p></div><p class=MsoNormal><span style='color:#888888'>Associate Scientist, Climate and Global Dynamics Laboratory, NCAR</span><o:p></o:p></p></div></div><div><p class=MsoNormal><span style='color:#888888'><a href="http://www.cgd.ucar.edu/staff/asphilli/" target="_blank">www.cgd.ucar.edu/staff/asphilli/</a> 303-497-1726 </span><o:p></o:p></p></div><div><div><p class=MsoNormal><o:p> </o:p></p></div></div></div></div></div></div></div></div></div></div></div></div></body></html>