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<div>Hi everybody</div>
<div><br>
</div>
<div>I am a new Grads user. Right now I am running simulations using NHRCM and GCM models to get downscaling data (temperature, precipitation, humidity, etc.) most them as a ctl or binary output files.</div>
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<div>I should do bias corrections. For instance for the temperature case I should compare or correlate values of observations versus simulation values. So, I would like to know if you could help me with a script which allow get the data or information (temperature,
precipation, etc.) from these ctl files, allows to sort this data (small value to the largest one), and graph them to get the correlation coefficent....and so on.</div>
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<div>Thanks so much in advance </div>
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<div>Kind regards</div>
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<p><br>
</p>
<p>Rei </p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> gradsusr-bounces@gradsusr.org <gradsusr-bounces@gradsusr.org> on behalf of Frank Colby <Frank_Colby@uml.edu><br>
<b>Sent:</b> Monday, July 11, 2016 6:51:46 PM<br>
<b>To:</b> GrADS Users Forum<br>
<b>Subject:</b> Re: [gradsusr] concatenating files</font>
<div> </div>
</div>
<div>Jennifer,<br>
<br>
Thanks for the help I didn't realize how much more meta data was included in the grib2 files.<br>
I had found something online that seemed to suggest grib1 files worked the same way as grib2.<br>
Now it makes sense that it didn't work out.<br>
<br>
Frank<br>
<br>
On 7/8/2016 9:18 AM, Jennifer M Adams wrote:
<blockquote type="cite">Hi, Frank —
<div>You can’t concatenate grib1 ensemble files and expect gribmap to distinguish between them — there isn’t any ensemble metadata in a grib1 header. This is discussed in the documentation for ensembles under ‘how to organize your data’:
<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__cola.gmu.edu_grads_gadoc_ensembles.html-23data&d=CwMF-g&c=lqHimbpwJeF7VTDNof4ddl8H-RbXeAdbMI2MFE1TXqA&r=6tSfNfW9eok2dvPp1qvMgNtd3pXLhNg0FMEbTXyDrbI&m=QPqA9k9AYEgTmQJHxaUoZ_ddngbq5ay2qvumidlIA3A&s=rfyXUHXXIldohh5hjQltp04HTFH4kkXgAH3khibQUIk&e=">
http://cola.gmu.edu/grads/gadoc/ensembles.html#data</a>. For GFS ensembles, I use a descriptor file like this:</div>
<div><br>
</div>
<div>
<div><font style="font-size: 14px;" face="Courier">dset ^gfsens.%e.%iy4%im2%id2%ih2.fh%f3.grib2</font></div>
<div><font style="font-size: 14px;" face="Courier">dtype grib2</font></div>
<div><font style="font-size: 14px;" face="Courier">title NCEP 5D Ensemble Forecast Initialized 00z08jul2016 6-hourly out to 192 hours</font></div>
<div><font style="font-size: 14px;" face="Courier">index ^gfsens.2016070800.map</font></div>
<div><font style="font-size: 14px;" face="Courier">options template pascals</font></div>
<div><font style="font-size: 14px;" face="Courier">undef -9.99e33</font></div>
<div><font style="font-size: 14px;" face="Courier">xdef 360 linear 0.0 1.0</font></div>
<div><font style="font-size: 14px;" face="Courier">ydef 181 linear -90.0 1.0</font></div>
<div><font style="font-size: 14px;" face="Courier">zdef 10 levels 100000 92500 85000 70000 50000 25000 20000 10000 5000 1000</font></div>
<div><font style="font-size: 14px;" face="Courier">tdef 33 linear 00z08jul2016 6hr</font></div>
<div><font style="font-size: 14px;" face="Courier">edef 22</font></div>
<div><font style="font-size: 14px;" face="Courier">*name length initialtime <type,pert or deriv></font></div>
<div><font style="font-size: 14px;" face="Courier">avg 33 00z08jul2016 0</font></div>
<div><font style="font-size: 14px;" face="Courier">c00 33 00z08jul2016 1,0</font></div>
<div><font style="font-size: 14px;" face="Courier">p01 33 00z08jul2016 3,1</font></div>
<div><font style="font-size: 14px;" face="Courier">p02 33 00z08jul2016 3,2</font></div>
<div><font style="font-size: 14px;" face="Courier">p03 33 00z08jul2016 3,3</font></div>
<div><font style="font-size: 14px;" face="Courier">p04 33 00z08jul2016 3,4</font></div>
<div><font style="font-size: 14px;" face="Courier">p05 33 00z08jul2016 3,5</font></div>
<div><font style="font-size: 14px;" face="Courier">p06 33 00z08jul2016 3,6</font></div>
<div><font style="font-size: 14px;" face="Courier">p07 33 00z08jul2016 3,7</font></div>
<div><font style="font-size: 14px;" face="Courier">p08 33 00z08jul2016 3,8</font></div>
<div><font style="font-size: 14px;" face="Courier">p09 33 00z08jul2016 3,9</font></div>
<div><font style="font-size: 14px;" face="Courier">p10 33 00z08jul2016 3,10</font></div>
<div><font style="font-size: 14px;" face="Courier">p11 33 00z08jul2016 3,11</font></div>
<div><font style="font-size: 14px;" face="Courier">p12 33 00z08jul2016 3,12</font></div>
<div><font style="font-size: 14px;" face="Courier">p13 33 00z08jul2016 3,13</font></div>
<div><font style="font-size: 14px;" face="Courier">p14 33 00z08jul2016 3,14</font></div>
<div><font style="font-size: 14px;" face="Courier">p15 33 00z08jul2016 3,15</font></div>
<div><font style="font-size: 14px;" face="Courier">p16 33 00z08jul2016 3,16</font></div>
<div><font style="font-size: 14px;" face="Courier">p17 33 00z08jul2016 3,17</font></div>
<div><font style="font-size: 14px;" face="Courier">p18 33 00z08jul2016 3,18</font></div>
<div><font style="font-size: 14px;" face="Courier">p19 33 00z08jul2016 3,19</font></div>
<div><font style="font-size: 14px;" face="Courier">p20 33 00z08jul2016 3,20</font></div>
<div><font style="font-size: 14px;" face="Courier">endedef</font></div>
<div><font style="font-size: 14px;" face="Courier">vars</font></div>
<div><font style="font-size: 14px;" face="Courier">....</font></div>
<div><font style="font-size: 14px;" face="Courier">endvars</font></div>
</div>
<div><br>
</div>
<div><br>
<div>
<div>On Jul 7, 2016, at 5:21 PM, Frank Colby <<a href="mailto:Frank_Colby@uml.edu">Frank_Colby@uml.edu</a>> wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">Hi GradsUsers,<br>
<br>
Does anyone have an easy way to handle GFS Ensemble files? I have <br>
output from ensemble runs that have separate files for each ensemble <br>
member at each forecast hour. I would like to put the ensemble members <br>
together into a single file. I used cat to put two files together as a <br>
test, and wgrib (these are grib1 files) shows that both ensemble members <br>
are indeed there. However, when I use grib2ctl and gribmap to make the <br>
ctl and index files, and open the file, it only has the first ensemble <br>
member. It's as if grib2ctl never read that there was a second <br>
ensemble member.<br>
<br>
What am I missing here?<br>
<br>
Thanks,<br>
Frank Colby<br>
UMass Lowell<br>
<br>
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<div style="font-size: 12px; orphans: 2; widows: 2;">--</div>
<div style="font-size: 12px; orphans: 2; widows: 2;">Jennifer Miletta Adams<br>
Center for Ocean-Land-Atmosphere Studies (COLA)<br>
George Mason University<br>
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