<div dir="ltr"><div>The <a href="https://www.ncl.ucar.edu/Applications/Scripts/grid2geocircle.ncl" target="_blank"><b>rgrid2geocircle</b></a> function uses <a href="https://www.ncl.ucar.edu/Document/Functions/Built-in/nggcog.shtml" target="_blank"><b>nggcog</b></a> to approximate the 'circle' around a given location. Degrees of latitude are the units.<br></div><div> <a href="https://www.ncl.ucar.edu/Document/Functions/Built-in/css2c.shtml" target="_blank"><b>css2c</b></a> is used to translate the geocircle  latitude(s) and longitude(s) 
to Cartesian coordinates;</div><div><br></div><div>When circular lat/lon are translated to/from spherical  coordinates to cartesian coordin, I speculate there is some distortion. ALso, the map projection can affect the 'look.' <br></div><div><pre></pre></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jun 27, 2020 at 7:58 AM Md. Jalal Uddin via ncl-talk <<a href="mailto:ncl-talk@mailman.ucar.edu" target="_blank">ncl-talk@mailman.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">Hi all,<div><br></div><div>I produced two figures: one following the regrid_15 example and another one following regrid_17 (<a href="https://www.ncl.ucar.edu/Applications/regrid.shtml" target="_blank">https://www.ncl.ucar.edu/Applications/regrid.shtml</a>). I got a round figure from the regrid_15 example, while regrid_17 produced a bit different (oval) - the figures have attached herewith. </div><div><br></div><div><a href="https://www.ncl.ucar.edu/Applications/Scripts/regrid_15_regcm.ncl" target="_blank">https://www.ncl.ucar.edu/Applications/Scripts/regrid_15_regcm.ncl</a><br></div><div><a href="https://www.ncl.ucar.edu/Applications/Scripts/regrid_17.ncl" target="_blank">https://www.ncl.ucar.edu/Applications/Scripts/regrid_17.ncl</a><br></div><div><br></div><div>Data link:</div><div>Rainfall data ( <a href="https://drive.google.com/file/d/1G3F2NxDasygsCMyVB2x0UoWH_hPxODWm/view?usp=sharing" target="_blank">https://drive.google.com/file/d/1G3F2NxDasygsCMyVB2x0UoWH_hPxODWm/view?usp=sharing</a>)</div><div><br></div><div>cyclone track data: <a href="https://drive.google.com/file/d/1VwfPeIcNnauffdMulkh9UzUqBJS2Ad4M/view?usp=sharing" target="_blank">https://drive.google.com/file/d/1VwfPeIcNnauffdMulkh9UzUqBJS2Ad4M/view?usp=sharing</a><br></div><div><div><br></div><div>Any suggestions? </div><div><br></div><div>Best regards,</div><div>Jalal</div>-- <br><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><font size="2" color="#000000"><b>Md. Jalal Uddin</b></font></div><div dir="ltr">M.Sc. in Applied Meteorology<br>Nanjing University of Information, Science and Technology, China.</div><div dir="ltr"><span style="letter-spacing:0.2px">B.Sc. in Disaster Management (Hons.) </span><br></div><div dir="ltr"><span style="letter-spacing:0.2px">Patuakhali Science and Technology University, Bangladesh.</span></div><div dir="ltr">Cell: +8613260859092, <span style="letter-spacing:0.2px">+8801792052662</span></div><div dir="ltr"><font size="2">Web: <a href="http://www.dmjalal90.weebly.com" target="_blank">www.dmjalal90.weebly.com</a> </font></div><div dir="ltr">Researchgate: <a href="https://www.researchgate.net/profile/Md_Uddin125" target="_blank">https://www.researchgate.net/profile/Md_Uddin125</a> </div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
_______________________________________________<br>
ncl-talk mailing list<br>
<a href="mailto:ncl-talk@mailman.ucar.edu" target="_blank">ncl-talk@mailman.ucar.edu</a><br>
List instructions, subscriber options, unsubscribe:<br>
<a href="https://mailman.ucar.edu/mailman/listinfo/ncl-talk" rel="noreferrer" target="_blank">https://mailman.ucar.edu/mailman/listinfo/ncl-talk</a></blockquote></div>