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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Dorita<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>You cannot really do this directly, since it is likely that the
files will have different dimensions.  One possible way would be to interpolate
all the data to a common grid using &quot;rcm2rgrid&quot;.  The other possible
way is to &quot;average&quot; the 3x3 grid cells from the fine mesh to obtain the
value on the coarse one if your grid ratio is 3 and these grids are part of the
same run (and are not a 2-way nest, since the average will be done already).<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Andrea<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>Andrea Hahmann, PhD.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>Senior Scientist</span><span style='color:#1F497D'><o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>Phone direct +45 4677 5471<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>andrea.n.hahmann@risoe.dk<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>Wind Energy Department<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>Risų National Laboratory for Sustainable Energy<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>Technical University of Denmark<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>Building 118, P.O. Box 49<o:p></o:p></span></p>

<p class=MsoNormal><span lang=DA style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>DK-4000 Roskilde, Denmark<o:p></o:p></span></p>

<p class=MsoNormal><span lang=DA style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>Tel +45 4677 4677<o:p></o:p></span></p>

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<p class=MsoNormal><span lang=DA style='font-size:11.0pt;font-family:"Courier New";
color:#1F497D'>Fax +45 4677 5083</span><span lang=DA style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>

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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
ncl-talk-bounces@ucar.edu [mailto:ncl-talk-bounces@ucar.edu] <b>On Behalf Of </b>Dorita
Rostkier-Edelstein<br>
<b>Sent:</b> Sunday, March 29, 2009 11:52 AM<br>
<b>To:</b> ncl-talk@ucar.edu<br>
<b>Subject:</b> [ncl-talk] subtracting wrfout at different resolutions<o:p></o:p></span></p>

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<p class=MsoNormal><o:p>&nbsp;</o:p></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Hi users,<br>
<br>
Has anybody a script to subtract wrfout files at different resolutions?<o:p></o:p></span></p>

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<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'>&nbsp;<br>
Thanks,<br>
<br>
Dorita<o:p></o:p></span></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>=====================================<br>
Dr. Dorita Rostkier-Edelstein, Ph.D.<o:p></o:p></span></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>&nbsp;<o:p></o:p></span></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><a href="http://www.geocities.com/drostkier/DO_page.html"
target="_blank">http://www.geocities.com/drostkier/DO_page.html</a><o:p></o:p></span></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>=====================================<o:p></o:p></span></p>

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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><o:p>&nbsp;</o:p></span></p>

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