<div dir="ltr">Hi Jose,<div><br></div><div>The function you are using (wgt_areaave) is for rectilinear coordinates. WRF uses curvilinear coordinates (latitude and longitude are two-dimensional arrays), so you need to use the wgt_areaave2 function (see <a href="http://www.ncl.ucar.edu/Document/Functions/Built-in/wgt_areaave2.shtml">http://www.ncl.ucar.edu/Document/Functions/Built-in/wgt_areaave2.shtml</a>). </div><div><br></div><div>Also, for the weights, there is no GWGT variable in a WRF file, so you'll need to come up with your own weights. Dennis has a suggestion from this archive that might be a good starting point:</div><div><br></div><div><a href="https://www.ncl.ucar.edu/Support/talk_archives/2011/2789.html">https://www.ncl.ucar.edu/Support/talk_archives/2011/2789.html</a><br></div><div><br></div><div>Hope this helps,</div><div><br></div><div>Bill</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Dec 15, 2016 at 4:50 PM, Jose Augusto Paixão Veiga <span dir="ltr"><<a href="mailto:veiga.uea@gmail.com" target="_blank">veiga.uea@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 class="gmail_default" style="font-family:arial,helvetica,sans-serif">Dear all,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I would appreciate if someone could share a NCL script example that calculates the area average of precipitation from a WRF domain (or a specific area average inside a domain).</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">I've used an example from <a href="http://www.ncl.ucar.edu/Document/Functions/Built-in/wgt_areaave.shtml" target="_blank">http://www.ncl.ucar.edu/<wbr>Document/Functions/Built-in/<wbr>wgt_areaave.shtml</a> website. However, I've reached no success. After that, I "googled" for help in tis issue but with no exit again.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">The script I've used as an initial test is attached. The error is presented bellow:</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><p style="margin:0px;font-size:11px;line-height:normal;font-family:monaco;color:rgb(245,245,245);background-color:rgb(0,0,0)">fatal:["Execute.c":5773]:<wbr>variable (GWGT) is not in file (f)</p>
<p style="margin:0px;font-size:11px;line-height:normal;font-family:monaco;color:rgb(245,245,245);background-color:rgb(0,0,0)">fatal:["Execute.c":7743]:<wbr>Execute: Error occurred at or near line 20 in file media-area2.ncl</p></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"> </div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Any help will be very appreciated.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Thanks</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">PS: My objective is to plot area averaged precipitation total versus time integration.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div><div class="m_-1037611824205578415gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><br></span></div><div><div style="font-family:arial,helvetica,sans-serif"><span style="color:rgb(51,51,51);font-family:arial,sans-serif">==============================<wbr>========================</span><br></div><div><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><span style="border-collapse:collapse"><div style="font-family:arial,helvetica,sans-serif;display:inline"><font color="#333333"></font><b><font color="#000000">Prof. José Augusto Paixão Veiga (CREA n.: 24161)</font></b></div></span><span style="font-family:calibri,arial,helvetica,sans-serif;font-size:16px;color:rgb(0,0,0)"> </span></div><div><span style="border-collapse:collapse"><div style="font-family:arial,helvetica,sans-serif;display:inline"><b><font color="#000000">Coordenador de Projetos Institucionais</font></b></div></span></div><div><span style="border-collapse:collapse"><span style="color:rgb(51,51,51)">Universidade do Estado do Amazonas <div style="font-family:arial,helvetica,sans-serif;display:inline">(UEA)</div></span><font color="#333333"><div style="font-family:arial,helvetica,sans-serif;display:inline"><b><br></b></div></font></span></div><div><span style="border-collapse:collapse"><font color="#333333"><div style="font-family:arial,helvetica,sans-serif;display:inline">Pró-Reitoria de Pesquisa e Pós-Graduação - PROPESP</div></font></span></div><div><span style="border-collapse:collapse"><font color="#333333"><div style="font-family:arial,helvetica,sans-serif;display:inline">Av. Djalma Batista, 3578, Manaus-AM Brasil</div></font></span></div><div><span style="border-collapse:collapse"><span style="color:rgb(51,51,51);font-family:arial;font-size:small">(92) </span><div style="color:rgb(51,51,51);font-family:arial,helvetica,sans-serif;display:inline">3646-7297</div><font color="#333333"><div style="font-family:arial,helvetica,sans-serif;display:inline"><br></div></font></span></div><div><span style="border-collapse:collapse"><font color="#333333">Departamento de Meteorologia<div style="font-family:arial,helvetica,sans-serif;display:inline"> -</div><div style="display:inline"> </div><span style="font-family:arial;border-collapse:separate;font-size:small">Escola Superior de Tecnologia (EST)</span></font></span><span style="font-family:arial;font-size:small;color:rgb(51,51,51)"> </span></div><div><span style="border-collapse:collapse"><span style="border-collapse:separate;font-family:arial;font-size:small"><font color="#333333">Av. Darcy Vargas, 1200, Manaus-AM Brasil<br><div style="font-family:arial,helvetica,sans-serif;display:inline">(92) </div>3878<div style="font-family:arial,helvetica,sans-serif;display:inline">-</div>4317<br></font></span></span></div><div><span style="color:rgb(51,51,51)">==============================<wbr>=======================</span></div><div><span style="font-weight:bold;color:rgb(51,51,51);font-family:arial">Skype:</span><span style="color:rgb(51,51,51);font-family:arial"><b> </b>veiga_j.a.p.</span><font color="#333333"><br><b>CV</b>: <font color="#333333" style="color:rgb(17,85,204)"><a href="http://lattes.cnpq.br/4027612512091565" style="color:rgb(17,85,204)" target="_blank">http://lattes.cnpq.br/<wbr>4027612512091565</a></font></font></div><div><font color="#000000"><b>LinkedIn</b></font><font color="#1155cc">: </font><a href="https://www.linkedin.com/in/jos%C3%A9-augusto-veiga-a9a28130" target="_blank">https://www.<wbr>linkedin.com/in/josé-augusto-<wbr>veiga-a9a28130</a><font color="#1155cc"><br></font><font color="#333333"><b>Site</b>: </font><a href="https://scientificmet.wordpress.com/" style="color:rgb(17,85,204);background-color:rgb(255,255,0)" target="_blank">https://scientificmet.<wbr>wordpress.com</a><font color="#333333"><br></font><span style="color:rgb(51,51,51)">==============================<wbr>=======================</span></div></div></div></div></div></div></div></div></div></div><div><font color="#333333"><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><br></span></font></div><div><font color="#333333"><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><br></span></font></div><div><font color="#333333"><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><br></span></font></div></div></div></div></div></div></div></div></div></div></div></div></div>
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