<div dir="ltr">Hello,<div>Shapefiles would be one way to mask your data. There are numerous shapefile examples, but example 21 uses WRF data to mask a shapefile region:</div><div><a href="http://www.ncl.ucar.edu/Applications/shapefiles.shtml#ex21">http://www.ncl.ucar.edu/Applications/shapefiles.shtml#ex21</a><br></div><div><br></div><div>Hope that helps. If not, or if you have further queries please respond to the ncl-talk email list.</div><div>Adam</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Mar 31, 2017 at 3:05 AM, 易路 <span dir="ltr"><<a href="mailto:dg1225033@smail.nju.edu.cn" target="_blank">dg1225033@smail.nju.edu.cn</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>Hi all, </div><div> I am processing the WRF output, and hope to get the average precipitation of one basin which has an irregunlar boundary, so I wonder to know if there is any functions in NCL to extract the grid data in an irreular area, maybe extracted by the shapefile of the basin boundary, then I can calculate the spatial mean value of this area. </div><div> Thanks you all </div><div> Yi Lu</div><div> </div><div> </div><div><u></u><div style="color:rgb(144,144,144);font-family:Arial Narrow;font-size:12px"><br><br><br><br></div><div style="color:rgb(0,0,0);font-family:Verdana;font-size:14px"><div style="overflow:hidden"><table class="m_-4144534781792852316preview_table"><tbody><tr><td valign="middle"><img id="m_-4144534781792852316preview_qrcode" src="https://exmail.qq.com/cgi-bin/setting_qrcode_card?action=qrcode_card&alias=dg1225033@smail.nju.edu.cn&key=33b1e5708e6a55b5"></td><td valign="middle" style="color:rgb(160,160,160);font-size:12px"><h4 class="m_-4144534781792852316name" style="margin:0px;color:rgb(0,0,0);line-height:28px;font-size:14px;font-weight:bold">易路</h4><p class="m_-4144534781792852316department" style="margin:0px">南大邮件系统/学生/博士生/12级博士生</p><p class="m_-4144534781792852316addr" style="margin:0px;color:rgb(160,160,160);line-height:22px">南京市汉口路22号 </p></td></tr></tbody></table></div></div><u></u></div><div> </div><div><u></u><u></u></div><br>______________________________<wbr>_________________<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><div><span><font color="#888888">Adam Phillips <br></font></span></div><span><font color="#888888">Associate Scientist, </font></span><span><font color="#888888">Climate and Global Dynamics Laboratory, NCAR<br></font></span></div></div><div><span><font color="#888888"><a href="http://www.cgd.ucar.edu/staff/asphilli/" target="_blank">www.cgd.ucar.edu/staff/asphilli/</a> </font></span><span><font color="#888888">303-497-1726 </font></span></div><span><font color="#888888"></font></span><div><div><span><font color="#888888"><br></font></span><div><span><font color="#888888"><a href="http://www.cgd.ucar.edu/staff/asphilli" target="_blank"></a></font></span></div></div></div></div></div></div></div></div></div></div></div>
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