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<div>Yes, I do. I am busy right now. I will get back to you. John</div>
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<font color="#000000" size="2" face="Tahoma"><b>From:</b> arlindo.dasilva@gmail.com [arlindo.dasilva@gmail.com] On Behalf Of Arlindo da Silva [dasilva@alum.mit.edu]<br>
<b>Sent:</b> Thursday, December 15, 2011 12:54 PM<br>
<b>To:</b> Huddleston, John<br>
<b>Cc:</b> GrADS Users Forum<br>
<b>Subject:</b> Reading CMAQ netcdf files in GrADS<br>
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<div>Hi John,
<div><br>
</div>
<div> Something tells me that you might know this. I have these CMAQ netcdf files from the DISCOVER-AQ campaign (see ncdump below). Do you happen to know the PDEF line that goes with these? I have the grid metrics in a separate file, I could always write
some code to remap these, but if grads can do it on the fly it would be good enough for the exploratory data analysis that I need to perform.</div>
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<div> Thanks,</div>
<div><br>
</div>
<div> Arlindo</div>
<div><br>
</div>
<div>-----</div>
<div><br>
</div>
<div>
<div>netcdf UMA_AOD {</div>
<div>dimensions:</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>TSTEP = UNLIMITED ; // (48 currently)</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>DATE-TIME = 2 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>LAY = 1 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>VAR = 1 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>ROW = 79 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>COL = 112 ;</div>
<div>variables:</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>int TFLAG(TSTEP, VAR, DATE-TIME) ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>TFLAG:units = "<YYYYDDD,HHMMSS>" ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>TFLAG:long_name = "TFLAG " ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>TFLAG:var_desc = "Timestep-valid flags: (1) YYYYDDD or (2) HHMMSS " ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>float AOD(TSTEP, LAY, ROW, COL) ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>AOD:long_name = "AOD " ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>AOD:units = "unitless " ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>AOD:var_desc = "AOD by Mie in VIS file " ;</div>
<div><br>
</div>
<div>// global attributes:</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:IOAPI_VERSION = "$Id: @(#) ioapi library version 3.0 $ " ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:EXEC_ID = "???????????????? " ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:FTYPE = 1 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:CDATE = 2011182 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:CTIME = 164809 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:WDATE = 2011182 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:WTIME = 164809 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:SDATE = 2011182 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:STIME = 130000 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:TSTEP = 10000 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:NTHIK = 1 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:NCOLS = 112 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:NROWS = 79 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:NLAYS = 1 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:NVARS = 1 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:GDTYP = 2 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:P_ALP = 33. ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:P_BET = 45. ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:P_GAM = -97. ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:XCENT = -97. ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:YCENT = 40. ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:XORIG = 984000. ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:YORIG = -384000. ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:XCELL = 12000. ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:YCELL = 12000. ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:VGTYP = 1 ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:VGTOP = 200.f ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:VGLVLS = 1.f, 0.9959855f ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:GDNAM = "AQF_CONUS_5x " ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:UPNAM = "setup " ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:VAR-LIST = "AOD " ;</div>
<div><span style="WHITE-SPACE: pre" class="Apple-tab-span"></span>:FILEDESC = "hourly 1-layer cross-point Visibility Information </div>
<div><br>
</div>
-- <br>
Arlindo da Silva<br>
<a href="mailto:dasilva@alum.mit.edu">dasilva@alum.mit.edu</a><br>
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