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<p>Thank you everyone that helped me on this. I wanted to mention
that I was able to solve my problem using a script
wrfout_to_cf.ncl that is available at <br>
</p>
<p><a class="moz-txt-link-freetext" href="http://foehn.colorado.edu/wrfout_to_cf/">http://foehn.colorado.edu/wrfout_to_cf/</a></p>
<p>The script, written by Mark Seefeldt, is well-documented and is
easy to configure and run.</p>
<p>Thanks,</p>
<p>Jim Means<br>
</p>
<br>
<div class="moz-cite-prefix">On 08/17/2018 12:29 PM, Jim Means
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:57f2c6d4-297e-28b9-1501-074f5d7212f9@weatherextreme.com">
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<p>I'm trying to do something which I think should be relatively
simple, but I think my lack of understanding of gridded files is
causing me problems.</p>
<p>I'd like to take the NetCDF output file from a WRF run and just
pull out the variables I need, so that I have a smaller version
of the file that I can work with. I'm giving it to somebody to
load into IDV and they need to be able to aggregate times. I
would like to be able to plot horizontal and vertical velocity
at different levels in the model, and keep the time information
so that I can see the evolution. My program runs, but IDV tells
me that there is "No gridded data" found in my output file. <br>
</p>
<p>My question is what do I need to do to make this a gridded data
file?</p>
<p>Here is some example code, I used unstagger because I thought
that might be my problem, but unstaggering didn't seem to help.</p>
<p>Thanks,</p>
<p>Jim</p>
<p><br>
</p>
<p>begin<br>
;<br>
<br>
;***************************************************<br>
; Open full NetCDF file and get variable names<br>
;***************************************************<br>
<br>
nc_in = addfile("wrfout_d02_2018-07-22_06:00:00.nc","r")<br>
<br>
<br>
;***************************************************<br>
; Open output netcdf file. Remove first just in case.<br>
;***************************************************<br>
nc_out_fname = "testout.nc"<br>
system("rm -f " + nc_out_fname) ; remove any pre-existing
file <br>
ncdf_out = addfile(nc_out_fname,"c") <br>
<br>
<br>
;***************************************************<br>
; Specify desired variables <br>
;***************************************************<br>
<br>
lat = nc_in->XLAT<br>
lon = nc_in->XLONG<br>
znu = nc_in->ZNU<br>
u = nc_in->U<br>
v = nc_in->V<br>
w = nc_in->W<br>
ua = wrf_user_unstagger(u,u@stagger)<br>
va = wrf_user_unstagger(v,v@stagger)<br>
wa = wrf_user_unstagger(w,w@stagger)<br>
<br>
xtime = nc_in->XTIME<br>
<br>
<br>
ncdf_out->LAT = lat<br>
ncdf_out->LON = lon<br>
ncdf_out->ZNU = znu<br>
ncdf_out->U = ua<br>
ncdf_out->V=va<br>
ncdf_out->W=wa<br>
<br>
ncdf_out->XTIME = xtime<br>
<br>
end<br>
</p>
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<p style="text-decoration:none; color:#000000; font-size:13px;
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<p style="text-decoration:none; color:#000000; font-size:13px;
font-family: 'Roboto', sans-serif; font-weight:700 !important;">James
D. Means, Ph.D.<br>
<span style="font-size:10px; font-family: 'Roboto', sans-serif;">Senior
Atmospheric & Climate Scientist</span><br>
<span style="text-decoration:none; font-size:10px;">California
Office</span><br>
<span style="text-decoration:none; font-size:10px;">Tele:
619-495-1638 | Fax: 775-636-8430</span><br>
<span style="text-decoration:none; font-size:10px;">930 Tahoe
Blvd., Suite 802-560<span style="text-decoration:none;"><br>
<span style="text-decoration:none; font-size:10px;"> Incline
Village, Nevada 89451</span><br>
<span style="text-decoration:none; color:red;"><a
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