<div dir="ltr"><div>[1]<b> Example s</b>cripts are not necessarily directly applicable. They are meant as <b>guidance</b>. <br></div><div><a href="http://www.ncl.ucar.edu/Applications/wrftrack.shtml" target="_blank"><b>http://www.ncl.ucar.edu/Applications/wrftrack.shtml</b></a></div><div><b> WRF_track_1.ncl <br></b></div><div><b><br></b></div><div>Others<b> WRF guidance</b> examples.<b><br></b></div><div><b><a href="http://www.ncl.ucar.edu/Applications/wrf.shtml" target="_blank">http://www.ncl.ucar.edu/Applications/wrf.shtml</a></b></div><div><b>h<a>ttp://www2.mmm.ucar.edu/wrf/OnLineTutorial/Graphics/NCL/NCL_examples.php</a></b></div><div><a href="http://www2.mmm.ucar.edu/wrf/OnLineTutorial/Graphics/NCL/Examples/SPECIAL/wrf_Vortex.php" target="_blank"><b>http://www2.mmm.ucar.edu/wrf/OnLineTutorial/Graphics/NCL/Examples/SPECIAL/wrf_Vortex.php</b></a></div><div><br></div><div>[2] The golden rule of data processing is <b>"Look at you data"</b></div><div>It is <b>user responsibility</b> to look at the WRF data being used. <br></div><div>This allows the user to make an assessment if the data can be directly used within the example script.</div><div><br></div><div>[3] <b>WRF_track_1.ncl </b>had one time step per file. Each of your WRF files has 17 time steps. Obviously, the <b>user </b>must make script changes to accommodate these file structure differences. This is user responsibility.</div><div><br></div><div>[4] Using 'ncdump -h' or 'ncl_filedump' on each file shows they have <b>different horizontal grid resolutions</b>. <br></div><div>The have different areas:<br></div><div><br></div><div>netcdf <span style="color:rgb(0,0,255)"><b>wrfout_d01_2017-10-21_00_00_00 </b></span>{<br>dimensions:<br> Time = UNLIMITED ; // (17 currently)<br> <b>west_east = 80 ;</b><br> <b> south_north = 80 ;</b><br> <b>bottom_top = 32</b> ; ;</div><div><br></div><div>(0) <b>LATITUDE</b>, SOUTH IS NEGATIVE (degree_north) : <b>min=13.834 max=32.9475</b><br>(0)<b> LONGITUDE</b>, WEST IS NEGATIVE (degree_east) : <b>min=79.9375 max=100.897</b><br></div><div><br></div><div>netcdf <span style="color:rgb(0,0,255)"><b>wrfout_d02_2017-10-21_00_00_00 </b></span>{<br>dimensions:<br> Time = UNLIMITED ; // (17 currently) ;<br><b> west_east = 93 ;<br> south_north = 96 ;<br> bottom_top = 32 ;</b></div><div><b><br></b></div><div>(0) <b>LATITUDE, </b>SOUTH IS NEGATIVE (degree_north) :<b> min=19.09 max=26.8182<br></b>(0)<b> LONGITUDE, </b>WEST IS NEGATIVE (degree_east)<b> : min=87.2776 max=95.4136<br></b></div><div><br></div><div>Thus, <b>when looping over files, it may be necessary to use NCL's <span style="color:rgb(255,0,0)">reassignment operator</span> <span style="color:rgb(255,0,0)"> :=</span></b><br></div><div><br></div><div>[5] re: Being 'new-to-NCL' or being a "novice"</div><div>It is your responsibility to read/study the language documentation:</div><div> <a href="http://www.ncl.ucar.edu/Document/Manuals/NCL_User_Guide/NCL_User_Guide_v1.1_Legal.pdf" target="_blank"><b>http://www.ncl.ucar.edu/Document/Manuals/NCL_User_Guide/NCL_User_Guide_v1.1_Legal.pdf</b></a></div><div><b> </b><br></div><div><br></div><div><br></div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 20, 2019 at 11:52 PM Saurav Dey Shuvo via ncl-talk <<a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.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"><div dir="ltr">Dear Respected Sir, <div><br><div>I have attached my files for you to check. They are not single time step files. So what should I do now? </div><div>I am trying to plot the path of a depression that formed during that period and moved over that area. </div><div>The script I am using is from the NCL's website. </div><div>As I have said before, I am a novice at this. That's why I am still at wonder with these things. </div><div><br></div><div><a href="https://drive.google.com/open?id=1Icu9p9hT6u7_zOzUEnDwEZH7-9NwH62i" target="_blank">https://drive.google.com/open?id=1Icu9p9hT6u7_zOzUEnDwEZH7-9NwH62i</a><br></div><div><br></div><div>Sincerely -</div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 21 Jun 2019 at 04:14, Rick Brownrigg <<a href="mailto:brownrig@ucar.edu" target="_blank">brownrig@ucar.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"><div dir="ltr"><div>Hi,</div><div><br></div><div>Please reply to the ncl-talk group -- it provides a bigger resource for answering questions.</div><div><br></div><div>I don't know much about WRF and what you are trying to do, but if all your WRF files are single time step files, and all you are tring to do with this line:</div><div><br></div><div> time(ifs) = wrf_user_list_times(f)</div><div><br></div><div>is for each file capture that timestamp, then something like this might work:</div><div><br></div><div> time(ifs) = charactertostring(f->Times)</div><div><br></div><div>The f->Times variable (which I believe is standard) is character, so it needs to be converted. <br></div><div><br></div><div>I'll note that when I ran a test using wrf_user_list_times() on a single-time WRF file, it always produced a 1D array of dimension 2, which would be why you are getting the error: trying to assign a 2-element entity into a 1-element slot. Note that NCL requires the dimensionality *and* types of both sides of an assignment statement to match.</div><div><br></div><div>Rick<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jun 20, 2019 at 4:27 PM Saurav Dey Shuvo <<a href="mailto:sauravshuvo007@gmail.com" target="_blank">sauravshuvo007@gmail.com</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"><div dir="ltr">Dear Respected Sir, <div><br><div>Thank you for the clarification. </div><div>But I am very new at NCL, and still has minimal knowledge about it. </div><div>Could you please tell me what should I write to solve this problem? </div><div><br></div><div>Sincerely - </div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 20 Jun 2019 at 21:26, Rick Brownrigg <<a href="mailto:brownrig@ucar.edu" target="_blank">brownrig@ucar.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"><div dir="ltr"><div>Hi,</div><div><br></div><div>The error message is telling you exactly the problem -- the dimensions of the expression on the right hand side of an assignment must match the dimensions of the variable on the left. More specifically, line 61 in your script is:</div><div><br></div><div> time(ifs) = wrf_user_list_times(f)</div><div><br></div><div>Time is a one dimension variable, declared as:</div><div><br></div><div> time = new(ndate,string)</div><div><br></div><div>and wrf_user_list_time() returns an array of available times, so line 61 is an attempt to assign an *element* of the time array to a 1D array of indeterminate length.</div><div><br></div><div>Hope that helps...</div><div>Rick<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jun 19, 2019 at 1:07 AM Saurav Dey Shuvo via ncl-talk <<a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.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"><div dir="ltr">Dear Respected Sir/Madam, <div>I am trying to plot a cyclone track. But I am getting this -</div><div><br></div><div>ncl WRF_track_1.ncl <br> Copyright (C) 1995-2017 - All Rights Reserved<br> University Corporation for Atmospheric Research<br> NCAR Command Language Version 6.4.0<br> The use of this software is governed by a License Agreement.<br> See <a href="http://www.ncl.ucar.edu/" target="_blank">http://www.ncl.ucar.edu/</a> for more details.<br>(0) Check input data:1 .ne. 8<br><br><br>Variable: times<br>Type: string<br>Total Size: 264 bytes<br> 33 values<br>Number of Dimensions: 1<br>Dimensions and sizes: [33]<br>Coordinates: <br>Number Of Attributes: 2<br> description : times in file<br> _FillValue : missing<br>(0) 2017-10-17_00:00:00<br>(1) 2017-10-17_03:00:00<br>(2) 2017-10-17_06:00:00<br>(3) 2017-10-17_09:00:00<br>(4) 2017-10-17_12:00:00<br>(5) 2017-10-17_15:00:00<br>(6) 2017-10-17_18:00:00<br>(7) 2017-10-17_21:00:00<br>(8) 2017-10-18_00:00:00<br>(9) 2017-10-18_03:00:00<br>(10) 2017-10-18_06:00:00<br>(11) 2017-10-18_09:00:00<br>(12) 2017-10-18_12:00:00<br>(13) 2017-10-18_15:00:00<br>(14) 2017-10-18_18:00:00<br>(15) 2017-10-18_21:00:00<br>(16) 2017-10-19_00:00:00<br>(17) 2017-10-19_03:00:00<br>(18) 2017-10-19_06:00:00<br>(19) 2017-10-19_09:00:00<br>(20) 2017-10-19_12:00:00<br>(21) 2017-10-19_15:00:00<br>(22) 2017-10-19_18:00:00<br>(23) 2017-10-19_21:00:00<br>(24) 2017-10-20_00:00:00<br>(25) 2017-10-20_03:00:00<br>(26) 2017-10-20_06:00:00<br>(27) 2017-10-20_09:00:00<br>(28) 2017-10-20_12:00:00<br>(29) 2017-10-20_15:00:00<br>(30) 2017-10-20_18:00:00<br>(31) 2017-10-20_21:00:00<br>(32) 2017-10-21_00:00:00<br>fatal:Dimension sizes on right hand side of assignment do not match dimension sizes of left hand side<br>fatal:["Execute.c":8640]:Execute: Error occurred at or near line 61 in file WRF_track_1.ncl<br><br><div>Could you please help me in sorting out my problem. </div><div><br></div><div>Sincerely -</div>-- <br><div dir="ltr" class="gmail-m_-3393115966588246112gmail-m_-1981052983865808840gmail-m_-2788819789935562750gmail-m_3014488532873010035gmail-m_-6536658771981503385gmail-m_8358607927975396288gmail_signature"><div dir="ltr"><div><div dir="ltr"><div style="font-size:12.8px;margin:8px 0px 0px;padding:0px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"><div><div dir="ltr"><span><font color="#888888"><div dir="ltr"><div dir="ltr"><font face="comic sans ms, sans-serif">Saurav Dey Shuvo</font><div><font face="comic sans ms, sans-serif">M.Sc. in Meteorology at Department of Meteorology, University of Dhaka</font></div><div><font face="comic sans ms, sans-serif">B.S. in Geography and Environment at </font><span style="font-family:"comic sans ms",sans-serif">Department of </span><span style="font-family:"comic sans ms",sans-serif">Geography and Environment, </span><span style="font-family:"comic sans ms",sans-serif">University of Dhaka</span></div><div><span style="font-family:"comic sans ms",sans-serif"><br></span></div></div></div></font></span></div><div></div></div></div><div style="font-size:12.8px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"></div></div></div></div></div></div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail-m_-3393115966588246112gmail-m_-1981052983865808840gmail-m_-2788819789935562750gmail-m_3014488532873010035gmail_signature"><div dir="ltr"><div><div dir="ltr"><div style="font-size:12.8px;margin:8px 0px 0px;padding:0px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"><div><div dir="ltr"><span><font color="#888888"><div dir="ltr"><div dir="ltr"><font face="comic sans ms, sans-serif">Saurav Dey Shuvo</font><div><font face="comic sans ms, sans-serif">M.Sc. in Meteorology at Department of Meteorology, University of Dhaka</font></div><div><font face="comic sans ms, sans-serif">B.S. in Geography and Environment at </font><span style="font-family:"comic sans ms",sans-serif">Department of </span><span style="font-family:"comic sans ms",sans-serif">Geography and Environment, </span><span style="font-family:"comic sans ms",sans-serif">University of Dhaka</span></div><div><span style="font-family:"comic sans ms",sans-serif"><br></span></div></div></div></font></span></div><div></div></div></div><div style="font-size:12.8px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"></div></div></div></div></div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail-m_-3393115966588246112gmail-m_-1981052983865808840gmail_signature"><div dir="ltr"><div><div dir="ltr"><div style="font-size:12.8px;margin:8px 0px 0px;padding:0px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"><div><div dir="ltr"><span><font color="#888888"><div dir="ltr"><div dir="ltr"><font face="comic sans ms, sans-serif">Saurav Dey Shuvo</font><div><font face="comic sans ms, sans-serif">M.Sc. in Meteorology at Department of Meteorology, University of Dhaka</font></div><div><font face="comic sans ms, sans-serif">B.S. in Geography and Environment at </font><span style="font-family:"comic sans ms",sans-serif">Department of </span><span style="font-family:"comic sans ms",sans-serif">Geography and Environment, </span><span style="font-family:"comic sans ms",sans-serif">University of Dhaka</span></div><div><span style="font-family:"comic sans ms",sans-serif"><br></span></div></div></div></font></span></div><div></div></div></div><div style="font-size:12.8px;font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif"></div></div></div></div></div>
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