<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi William,<div class=""><br class=""></div><div class="">I think UPP can do that although it is well hidden in the code.</div><div class=""><br class=""></div><div class="">The point is that the fields accumulated precip (conv/gridscale/snow) and precip accumulated over a user-specified interval are defined with same grib code etc, which means that you have to suppress the output of one or the other. I once wrote a Python tool to generate the wrf_cntrl.parm using a Python dictionary in which all possible fields are listed. These were obtained from UPPv2.1, so some things might have changed. Here is a short extract from the Python tool for the fields you are interested in:</div><div class=""><br class=""></div><div class=""><div class=""><font face="Courier New" class=""> "ACM CONVCTIVE PRECIP" : { "levelcode" : 1, "gribcode" : 63, "description" : "Accumulated convective precipitation" },</font></div><div class=""><font face="Courier New" class=""> "ACM GRD SCALE PRECIP" : { "levelcode" : 1, "gribcode" : 62, "description" : "Accumulated grid-scale precipitation" },</font></div><div class=""><span style="font-family: 'Courier New';" class=""> "ACM SNOWFALL" : { "levelcode" : 1, "gribcode" : 65, "description" : "Accumulated snowfall" },</span></div><div class=""><font face="Courier New" class=""> "BUCKET CONV PRECIP" : { "levelcode" : 1, "gribcode" : 63, "description" : "Convective precipitation accumulated over user-specified" },</font></div></div><div class=""><font face="Courier New" class=""> "BUCKET GRDSCALE PRCP" : { "levelcode" : 1, "gribcode" : 62, "description" : "Grid-scale precipitation accumulated over user-specified" },</font></div><div class=""><font face="Courier New" class=""> "BUCKET SNOW PRECIP" : { "levelcode" : 1, "gribcode" : 65, "description" : "Snow accumulated over user- specified bucket" },</font></div><div class=""><br class=""></div><div class="">If you search for those names in the UPP source code, you will find that the bucket values are accumulated precip between the specified output times. In v2.1, you’ll find it in src/unipost/SURFCE.f. Also, these variables are listed in the UPP user’s guide (<a href="http://www.dtcenter.org/upp/users/docs/user_guide/V3/upp_users_guide.pdf" class="">http://www.dtcenter.org/upp/users/docs/user_guide/V3/upp_users_guide.pdf</a>).</div><div class=""><br class=""></div><div class="">Let me know if you are interested in the Python tool.</div><div class=""><br class=""></div><div class="">Cheers</div><div class=""><br class=""></div><div class="">Dom</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 20/02/2016, at 10:05 AM, Capehart, William J <<a href="mailto:William.Capehart@sdsmt.edu" class="">William.Capehart@sdsmt.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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<div class="">Hi Don. We need the integrated precip value not the prate value of file-time.</div>
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<span style="font-weight:bold" class="">From: </span>Don Morton <<a href="mailto:don.morton@borealscicomp.com" class="">don.morton@borealscicomp.com</a>><br class="">
<span style="font-weight:bold" class="">Date: </span>Saturday, February 20, 2016 at 09:40 MST<br class="">
<span style="font-weight:bold" class="">To: </span>William Capehart <<a href="mailto:William.Capehart@sdsmt.edu" class="">William.Capehart@sdsmt.edu</a>><br class="">
<span style="font-weight:bold" class="">Cc: </span>"<a href="mailto:wrf-users@ucar.edu" class="">wrf-users@ucar.edu</a>" <<a href="mailto:wrf-users@ucar.edu" class="">wrf-users@ucar.edu</a>><br class="">
<span style="font-weight:bold" class="">Subject: </span>Re: [Wrf-users] UPP 3.0, WRF-ARW and hourly and 3-hourly Precip Accumulations<br class="">
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<div class="">I've been generating a "prate" field with units of kg m-2 s-1 with UPP. Is this something you could use more easily than hacking around with wgrib? </div>
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<div class="">Don Morton, Owner/Manager</div>
<div class="">Boreal Scientific Computing LLC</div>
<div class="">Fairbanks, Alaska USA</div>
<div class=""><a href="http://www.borealscicomp.com/" target="_blank" class="">http://www.borealscicomp.com/</a></div>
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<div class="gmail_quote">On Sat, Feb 20, 2016 at 4:31 PM, Capehart, William J <span dir="ltr" class="">
<<a href="mailto:William.Capehart@sdsmt.edu" target="_blank" class="">William.Capehart@sdsmt.edu</a>></span> wrote:<br class="">
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<div class="">I am working with our local NWS office and they are requesting GRIB output from our realtime WRF-ARW runs to have hourly precip accumulations.</div>
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<div class="">Currently our experience with the UPP 3.0 tool has us able to output accumulated precip over the whole simulation in GRIB but not hourly. We are using the prec_acc_dt = 6 option and are receiving the normal precip accumulated outputs and also the requested
PREC_ACC_C, PREC_ACC_NC, and SNOW_ACC_NC fields.</div>
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<div class="">UPP however is only accessing RAINNC and RAINC for output as per pages 7-9 for the output grib file and is displaying the total simulated accumulations. </div>
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<div class="">Is there an easy patch for this, e.g., artfully using wgrib, gribw or hacking the UPP code that has given other people success in this area?</div>
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<div class="">Thanks Much,</div>
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<div class=""><font face="Consolas,monospace" class="">Bill Capehart <<a href="mailto:William.Capehart@sdsmt.edu" target="_blank" class="">William.Capehart@sdsmt.edu</a>> Associate Professor</font></div>
<div class=""><font face="Consolas,monospace" class="">Atmospheric & Environmental Sciences Program Director</font></div>
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<div class=""><font face="Consolas,monospace" class="">=================== <a href="http://capehart.sdsmt.edu/" target="_blank" class="">
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