<div dir="ltr">Hi Vanucia,<div><br></div><div>I'm not sure I understand what you are wanting to do. In WRF, the latitude and longitude coordinates are two-dimensional, since WRF uses curvilinear coordinates. Unless you are using a staggered variable, the coordinates are stored in the XLAT and XLONG variables in the WRF output file. (For plotting in NCL, you can set the special lat2d and lon2d coordinate variables to point to XLAT and XLONG, and NCL will know what to do).</div><div><br></div><div>As for creating the lat/lon coordinates, are you wanting to create the coordinate variables from scratch, rather than just writing out the XLAT and XLONG variables? The NCL WRF routines have a wrf_ij_to_ll (<a href="https://www.ncl.ucar.edu/Document/Functions/Built-in/wrf_ij_to_ll.shtml">https://www.ncl.ucar.edu/Document/Functions/Built-in/wrf_ij_to_ll.shtml</a>) that you could use to generate the lat/lon arrays if you supply the WRF map projection parameters. Another way to create the lat/lon arrays is to use geogrid from WRF itself. You would need to set the map projection that you want, run geogrid, and grab the latitude and longitude arrays from the <a href="http://geo_em.d01.nc">geo_em.d01.nc</a> file. </div><div><br></div><div>If this doesn't answer your question, can you clarify what you want to do, and I'll try again.</div><div><br></div><div>Hope this helps,</div><div><br></div><div>Bill</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jun 7, 2017 at 9:05 AM, Vanúcia Schumacher <span dir="ltr"><<a href="mailto:vanucia-schumacher@hotmail.com" target="_blank">vanucia-schumacher@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<span style="font-size:12pt">Hi users,</span></p>
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<span style="font-size:12pt">I would like to know if there is a way to create lat and lon coordinates like </span><span style="font-size:12pt">netCDF</span><span style="font-size:12pt"> file </span><span style="font-size:12pt">with the <a href="http://wrfout.nc" target="_blank">wrfout.nc</a> </span><span style="font-size:12pt">data
in NCL? I need to input into other model with time level lat and lon informations. </span><br>
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<span style="font-size:12pt">Thanks for any hep on this question</span></p>
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