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<p>​Works perfectly Jennifer,<br>
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<p>There are seemingly few sources of real-time and recent precipitation data -- glad to be able to use GrADS to visualize it. <br>
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<p>RYAN<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> gradsusr-bounces@gradsusr.org <gradsusr-bounces@gradsusr.org> on behalf of Jennifer Adams <jma@cola.iges.org><br>
<b>Sent:</b> Friday, April 18, 2014 10:43 AM<br>
<b>To:</b> GrADS Users Forum<br>
<b>Subject:</b> Re: [gradsusr] HRAP precipitation grid</font>
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<div>Hi, Ryan --
<div>I subtracted hrap.xor from 401 and hrap.yor from 1601 and now it seems to fit with this PDEF:</div>
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<div>pdef 1051 813 nps 388 1591 -105.000000 4.7625</div>
<div>xdef 1500 linear -135 0.05</div>
<div>ydef 700 linear 20 0.05</div>
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<div>Note the new XDEF and YDEF axes do not need to match the size of the original grid; I used 0.05 degrees as a grid increment which kind of matches the native grid size, and made the axes big enough to cover the whole domain:</div>
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<div><img height="532" width="882" id="feb85560-d629-455c-81f3-ab0ddd02fb04" src="cid:72EE7728-60EE-4D3C-B81F-20ADFAC2C4C9@SME"></div>
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<div>--Jennifer</div>
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<div>On Apr 9, 2014, at 5:14 PM, Maue, Ryan wrote:</div>
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<div style="margin-top:0px; margin-bottom:0px">Greetings,<br>
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<div style="margin-top:0px; margin-bottom:0px">Does anyone have a control file handy for the netcdf files that are provided by NWS AHPS? My control file is a little bit off. The grid is the HRAP 4 km polar stereographic.<br>
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<div style="margin-top:0px; margin-bottom:0px">Any help or guidance would be great!<br>
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<div style="margin-top:0px; margin-bottom:0px">I've uploaded an example here as well as the ascii output from the conversion program:<br>
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<div style="margin-top:0px; margin-bottom:0px"><a href="http://models.weatherbell.com/news/nws_precip_conus_20140101.nc" id="lnk448130">http://models.weatherbell.com/news/nws_precip_conus_20140101.nc</a><br>
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<div style="margin-top:0px; margin-bottom:0px"><a href="http://models.weatherbell.com/news/20140101.txt" id="lnk685508">http://models.weatherbell.com/news/20140101.txt</a><br>
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<div style="margin-top:0px; margin-bottom:0px"><span style="font-size:12pt">Location of the NWS Precip page:</span><br>
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<div style="margin-top:0px; margin-bottom:0px"><a href="http://water.weather.gov/precip/" id="lnk839083" style="font-size:12pt">http://water.weather.gov/precip/</a><br>
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<div style="margin-top:0px; margin-bottom:0px">​<br>
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<div>dset ^nws_precip_conus_20140101.nc</div>
<div>dtype netcdf</div>
<div>title amountofprecip</div>
<div>undef -1</div>
<div>pdef 1051 813 nps 401 1601 -105.000000 4.7625</div>
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<div>xdef 1051 linear -131.402908 .06366019047619047619</div>
<div>ydef 813 linear 20.761557 .04260785837438423645</div>
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<div>ydef 813 linear 20.749580 0.04262164576</div>
<div>zdef 1 linear 1 1</div>
<div>tdef 1 linear 00:00Z01jan2014 1dy</div>
<div>vars 1</div>
<div>amountofprecip=>pcp 1 y,x amountofprecip</div>
<div>endvars<br>
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<div>RYAN MAUE<br>
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<div>--</div>
<div>Jennifer M. Adams<br>
Center for Ocean-Land-Atmosphere Studies (COLA)<br>
111 Research Hall, Mail Stop 2B3<br>
George Mason University<br>
4400 University Drive<br>
Fairfax, VA 22030 <br>
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