<div dir="ltr"><div><div>If you go to:<br><br> <a href="http://www2.mmm.ucar.edu/wrf/OnLineTutorial/Tools/p_interp.htm" target="_blank">http://www2.mmm.ucar.edu/wrf/OnLineTutorial/Tools/p_interp.htm</a> <br><br>you
will be able to download the p_interp program, which interpolates WRF.out data to (user defined) pressure levels and dump the data in NETCDF format. If simulations are conducted over areas with little-to-no terrain, then I'd advise you to write your own code and use the following to convert to Z(km) e.g.,:<br>
<br> ph_tmp = ( (ph_tmp+phb_tmp) / 9.81)/1000. <br><br></div>as provided in module_interp.f90 of ARWpost.<br><br></div>Cheers,<br><div><div>-- <br>-------------------------------------------------------------<br>Alexandre Fierro, PhD<br>
Research Scientist-<br>National Severe Storms Laboratory (NSSL/NOAA)<br><b style="font-weight:normal">The Cooperative Institute for Mesoscale Meteorological
Studies</b> (OU/NOAA)<br>Los Alamos National Laboratory, Los Alamos, NM (LANL)<br><br>"Yesterday is History, Tomorrow is a Mystery and Today is a Gift; That is why it is called the Present" <br><br>"There are only 10 types of people in the world:<br>
Those who understand binary, and those who don't" <br><br>"My opinions are my own and not representative of OU, NSSL,<br>AOML, HRD, LANL or any affiliates."<br> ^.^<br> (o o)<br> /( V )\<br>
---m---m----<br><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, May 22, 2014 at 1:42 PM, Eric Altshuler <span dir="ltr"><<a href="mailto:ela@cola.iges.org" target="_blank">ela@cola.iges.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:arial,helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">The best way to do vertical interpolation of WRF output is to use one of the postprocessing tools. These include ARWpost (for WRF-ARW only), UPP (ARW and NMM), NCL and RIP. If you're running WRF-ARW, then ARWpost is probably the easiest to use, although the others can calculate many more diagnostic fields.<div>
<br></div><div>Best regards,<br><br><div><span name="x"></span>Eric L. Altshuler<br>Research Scientist<br>Center for Ocean-Land-Atmosphere Studies<br>253 Research Hall, Mail Stop 6C5<div>George Mason University</div><div>
4400 University Drive<br>Fairfax, VA 22030 USA<br><br>E-mail: <a href="mailto:ela@cola.iges.org" target="_blank">ela@cola.iges.org</a><br>Phone: <a href="tel:%28703%29%20993-5725" value="+17039935725" target="_blank">(703) 993-5725</a><br>
Fax: <a href="tel:%28703%29%20993-5770" value="+17039935770" target="_blank">(703) 993-5770</a></div><span name="x"></span><br></div><br><hr><b>From: </b>"孙佳" <<a href="mailto:sunjiaouc@sina.com" target="_blank">sunjiaouc@sina.com</a>><br>
<b>To: </b>"wrf-users" <<a href="mailto:wrf-users@ucar.edu" target="_blank">wrf-users@ucar.edu</a>><br><b>Sent: </b>Wednesday, May 21, 2014 9:21:28 PM<br><b>Subject: </b>[Wrf-users] Transforming eta levels to p levels<br>
<br>
<div><font face="Verdana">Dear all,</font></div>
<div style="text-indent:2em"> </div>
<div style="text-indent:2em">I was doing the wrfout data analysis in MATLAB.
Data in "wrfout_*" files are constructed in eta levels, and this is not
convinient for atmosphere analysis. </div>
<div style="text-indent:2em"> </div>
<div style="text-indent:2em">with the following formula, I get eta values
but different from those in namelist files.</div>
<div style="text-indent:2em"> eta
= (P0-P_TOP)/(PSFC-P_TOP) where P0=P+PB, and P PB PSFC P_TOP
are all variables in wrfout_d* files</div>
<div style="text-indent:2em"> </div>
<div style="text-indent:2em">So, I am not sure that it is right if I use
P0 = P+PB to do the p_level interpretion.</div>
<div style="text-indent:2em"> </div>
<div style="text-indent:2em">Can you give me some advise? I will be very
appreciate about it!</div>
<div style="text-indent:2em"> </div>
<div style="text-indent:2em">Thank you all!</div>
<div style="text-indent:2em"> </div>
<div><font face="Verdana"></font> </div>
<div align="left"><font color="#c0c0c0" face="Verdana">2014-05-22
</font></div><font face="Verdana">
<hr style="width:122px;min-height:2px" align="left" size="2">
<div><font color="#c0c0c0" face="Verdana"><span>
<div>
<div><font face="Verdana"></font>
<div>
<div><font face="微软雅黑" size="3">谨祝顺祺！</font></div>
<div>WITH BEST WISHES!</div>
<div> </div>
<div>JIA, SUN</div>
<div>TEL: <a href="tel:%28%2B86%2915077857866" value="+8615077857866" target="_blank">(+86)15077857866</a></div>
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<div>36 BAOCHU, XIHU, HANGZHOU, ZHEJIANG PROVINCE, CHINA,
310012</div></div> </div></div></span></font></div></font>
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