<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>hi. </div><div><br></div><div>when you using data on pressure levels, you don't need to use calc-ecmwf-p as it is for when using ecmwf data on model levels. You have to keep in mind to use the correct Vtable for ungrib, as there are two one for plevel and one for mlevel. Also you should check the grib codes to make sure they match the one in downloaded data. it is a bit tricky to use ecmwf data first time around. </div><div><br></div><div>Do remember to check the Metgrid.TBL as well</div><div><br></div><div><br><br>Sent from my iPhone</div><div><br>On 15 Aug 2015, at 9:46 am, Md Hosen <<a href="mailto:md.hosen@live.vu.edu.au">md.hosen@live.vu.edu.au</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<p>Dear Nikhil,</p>
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<p>Thanks for your heartiest cooperation. Finally, I have downloaded pressure levels and surface data. I have seen some posts in WRF users group that they run <b style="font-size: 12pt; font-family: 'Times New Roman';">calc_ecmwf_p.exe </b><span style="font-size: 12pt;">between
ungrib.exe and metgrid.exe. </span></p>
<p><span style="font-size: 12pt;"><br>
</span></p>
<p><span style="font-size: 12pt;">Could you tell me please is it always essential if I use ERA-interim data.</span></p>
<p><span style="font-size: 12pt;"><br>
</span></p>
<p><span style="font-size: 12pt;">Also I have seen that if I want to run </span><b style="font-size: 12pt; font-family: 'Times New Roman';">calc_ecmwf_p.exe</b><span style="font-size: 12pt;">,then I need </span><span style="font-family: 'Times New Roman'; font-size: 12pt;"><b>ecmwf_coeffs</b> </span><span style="font-size: 12pt;">table
in the working directory. According to ARW </span><span style="font-size: 12pt;">user guide, I have found a</span><span style="font-size: 12pt;"> link "</span><a href="http://www.ecmwf.int/products/data/technical/model_levels/index.html" id="LPlnk848193" style="font-size: 12pt;" title="http://www.ecmwf.int/products/data/technical/model_levels/index.html
Ctrl+Click or tap to follow the link">http://www.ecmwf.int/products/data/technical/model_levels/index.html</a><span style="font-size: 12pt;">" </span><span style="font-size: 12pt;">for </span><span style="font-size: 12pt; font-family: 'Times New Roman';">ecmwf_coeffs</span><span style="font-size: 12pt; font-family: 'Times New Roman';"> </span><span style="font-size: 12pt;">table.
But the table is not existed in that link. I want to </span><span style="font-size: 12pt;">use "e_vert=50 or 60". </span></p>
<p><span style="font-size: 12pt;">Could you please suggest any link or any sample where I can get </span><b style="font-size: 12pt; font-family: 'Times New Roman';">ecmwf_coeffs</b><span style="font-size: 12pt; font-family: 'Times New Roman';"> </span><span style="font-size: 12pt;">table. </span></p>
<p><span style="font-size: 12pt;">Could you please advise what criteria I have to follow to edit that table.</span></p>
<p><span style="font-size: 12pt;"><br>
</span></p>
<p><span style="font-size: 12pt;">Your further suggestions will be highly appreciated.</span></p>
<p><span style="font-size: 12pt;"><br>
</span></p>
<p><span style="font-size: 12pt;">Kind regards,</span></p>
<p><span style="font-size: 12pt;">Hossain</span></p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Nikhil Garg <<a href="mailto:nikhilgarg.gju@gmail.com">nikhilgarg.gju@gmail.com</a>><br>
<b>Sent:</b> 15 August 2015 02:04<br>
<b>To:</b> Md Hosen<br>
<b>Cc:</b> <a href="mailto:wrf-users@ucar.edu">wrf-users@ucar.edu</a><br>
<b>Subject:</b> Re: [Wrf-users] ERA-Interim data</font>
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<div dir="ltr">you can use either of them
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<div><a href="http://computing.io/wp/category/ecmwf/">http://computing.io/wp/category/ecmwf/</a><br>
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<div><a href="http://conorsweeneyucd.blogspot.sg/2015/01/how-to-run-wrf-driven-by-ecmwf-data.html">http://conorsweeneyucd.blogspot.sg/2015/01/how-to-run-wrf-driven-by-ecmwf-data.html</a><br>
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<div>check these links out</div>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On 14 August 2015 at 13:50, Md Hosen <span dir="ltr"><<a href="mailto:md.hosen@live.vu.edu.au" target="_blank">md.hosen@live.vu.edu.au</a>></span> wrote:<br>
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<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
Dear WRF users,</p>
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<br>
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<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
Good day!</p>
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<br>
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<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
First I have tried to use FNL data for WRF model. But I am not getting the good results compared to observation data. Therefore, I wish to use ERA-interim data. I have seen on the following website that there are different types (Types of Level) data sets such
as <b>Model Levels, Pressure Levels, Surface Levels</b> and so on.</p>
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<br>
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<p><font face="Calibri, Arial, Helvetica, sans-serif"><a href="http://apps.ecmwf.int/datasets/data/interim-full-daily/?levtype=pl" title="http://apps.ecmwf.int/datasets/data/interim-full-daily/?levtype=pl
Ctrl+Click or tap to follow the link" target="_blank">http://apps.ecmwf.int/datasets/data/interim-full-daily/?levtype=pl</a></font></p>
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<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
(1) Could you tell me please what is the criteria to select different data options. Do I need all types of data into same folder? Or I can use any of them.</p>
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<br>
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(2) Do I need any preprocessing work after downloading the data and before use in WRF model? Is it need to change anything in Vtable?</p>
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<br>
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(3) I have seen that it is possible to download one month data at a time. But if I want to download the data for couple of days then how I can download it?</p>
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<br>
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(4) After downloading the data for a month, I got only one file containing whole data set. Do I need to split the time step of the data (like FNL data)<span style="font-size:12pt"> </span><span style="font-size:12pt">. For Instance, 00hrs, 06 hrs, 12 hrs and
18 hrs. If so, then how I can do that.</span></p>
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<span style="font-size:12pt"><br>
</span></p>
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<span style="font-size:12pt">Hope you will extend your helping hand.</span></p>
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<span style="font-size:12pt">Kind regards,</span></p>
<p style="color:rgb(0,0,0); font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">
<span style="font-size:12pt">Hossain</span></p>
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<br>
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<div>Regards<br>
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Nikhil <br>
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<div><font face="comic sans ms, sans-serif" color="#000000" style="background-color:rgb(255,255,255)">Big whirls have little whirls,</font></div>
<div><font face="comic sans ms, sans-serif" color="#000000" style="background-color:rgb(255,255,255)">Which feed on their velocity,</font></div>
<div><font face="comic sans ms, sans-serif" color="#000000" style="background-color:rgb(255,255,255)">And little whirls have lesser whirls,</font></div>
<div><font face="comic sans ms, sans-serif" color="#000000" style="background-color:rgb(255,255,255)">And so on to viscosity</font></div>
<div><font face="trebuchet ms, sans-serif" color="#ff0000">(Richardson, 1922)</font></div>
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