<div dir="ltr"><div><div><div><div>There is no way to convert the output from RAINNC or RAINC (WRF history arrays for grid-resolved and convectively parameterized precipitation, respectively) from accumulations to instantaneous rain rates. However, if you are running convective parameterization, the array PRATEC will provide instantaneous rain rates, but only that produced by the convective scheme itself.<br><br></div>The only thing you can really do is take the difference in accumulated rainfall over your 1-hour intervals to get a 1-hour rain rate. You don't need a script to do it, as it's a one-line command:<br><br></div>'d rain(t=x)-rain(t=x-1)'<br><br></div>where x is any time index corresponding to valid data.<br><br></div>Jeff Duda<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Apr 13, 2017 at 12:20 PM, Usha Verma <span dir="ltr"><<a href="mailto:loukayaverma@gmail.com" target="_blank">loukayaverma@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><span style="font-size:12.8px">Dear fellow GrADS users,</span><br style="font-size:12.8px"></div><div><span style="font-size:12.8px"><br></span></div><span style="font-size:12.8px">I have WRF 1hr rainfall output data and i want to compare this output with satellite </span><span style="font-size:12.8px">rainrate </span><span style="font-size:12.8px">data (TRMM,GPM)</span><br style="font-size:12.8px"><span style="font-size:12.8px">My question is as below</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">How to convert WRF(mm) rainfall data into rainrate(mm/hr)?</span><br style="font-size:12.8px"><span style="font-size:12.8px">If you have any script regarding this please share it.</span><br style="font-size:12.8px"><br style="font-size:12.8px"><span style="font-size:12.8px">Sincerely,</span><br style="font-size:12.8px"><span style="font-size:12.8px">Usha</span><br></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>Jeff Duda<br>Post-doctoral research fellow<br>University of Oklahoma School of Meteorology<br></div></div></div></div></div>
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