<p dir="ltr">Besides the data format which must be grib, check also the starting and ending dates of four data . Also I think you can download fnl data directly in grib format</p>
<div class="gmail_quote">On Apr 11, 2016 9:33 PM, "Richard Newton" <<a href="mailto:richard.newton-6@postgrad.manchester.ac.uk">richard.newton-6@postgrad.manchester.ac.uk</a>> wrote:<br type="attribution"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Cambria",serif">Hello,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Cambria",serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Cambria",serif">Ungrib needs GRIB format files in order to run. You are linking netCDF files with ./link_grib.csh, creating GRIBFILE.***s This will throw the error “</span>ERROR:
Grib2 file or date problem, stopping in edition_num.” In order to convert from netCDF format to GRIB2 format, one option is to use CDO (link:
<a href="https://code.zmaw.de/projects/cdo/wiki/cdo#Installation-and-Supported-Platforms" target="_blank">
https://code.zmaw.de/projects/cdo/wiki/cdo#Installation-and-Supported-Platforms</a>). Then remove all the old GRIBFILE.*** and rerun ./link_grib.csh with the GRIB files instead.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Hope this helps,<u></u><u></u></p>
<p class="MsoNormal">Richard<span style="font-size:11.0pt;font-family:"Cambria",serif"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Cambria",serif"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#767171">Richard Newton<u></u><u></u></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#767171">PhD Student<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#767171">School of Earth, Atmospheric and Environmental Sciences<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#767171">University of Manchester<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Cambria",serif"><u></u> <u></u></span></p>
<p class="MsoNormal" style="margin-left:36.0pt"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Benjamin Alabi [mailto:<a href="mailto:alabibenjamin2@gmail.com" target="_blank">alabibenjamin2@gmail.com</a>]
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<b>Sent:</b> 11 April 2016 18:16<br>
<b>To:</b> <a href="mailto:wrf-users@ucar.edu" target="_blank">wrf-users@ucar.edu</a><br>
<b>Subject:</b> [Wrf-users] Ungrid error<u></u><u></u></span></p><div class="elided-text">
<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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<p class="MsoNormal" style="margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt">
sir, i need assistance on the error i encounter when running ./ungrid.exe. i was using grip1 data to run it on WPSV3.7.1<u></u><u></u></p>
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this is my namelist.wps<br>
<br>
&share<br>
wrf_core = 'ARW',<br>
max_dom = 3,<br>
start_date = '2006-03-05_00:00:00', '2006-03-05_00:00:00', '2006-03-05_00:00:00',
<br>
end_date = '2006-03-14_00:00:00', '2006-03-14_00:00:00', '2006-03-14_00:00:00',
<br>
interval_seconds = 21600,<br>
io_form_geogrid = 2,<br>
/<br>
<br>
&geogrid<br>
parent_id = 1,1,2,<br>
parent_grid_ratio = 1,3,3,<br>
i_parent_start = 1,36,44,<br>
j_parent_start = 1,30,26,<br>
e_we = 100,133,193,<br>
e_sn = 82,103,121,<br>
geog_data_res = '10m','2m','30s',<br>
dx = 36000,<br>
dy = 36000,<br>
map_proj = 'mercator',<br>
ref_lat = 9.652,<br>
ref_lon = 5.048,<br>
truelat1 = 9.652,<br>
truelat2 = 0,<br>
stand_lon = 5.048,<br>
geog_data_path = '/home/amarachi/Build_WRF/geog_complete',<br>
/<br>
<br>
&ungrib<br>
out_format = 'WPS',<br>
prefix = 'FILE',<br>
/<br>
<br>
&metgrid<br>
fg_name = 'FILE',<br>
io_form_metgrid = 2,<br>
/<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">the step after running geogrid.exe,
<u></u><u></u></p>
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(1) ./link_grib.csh /home/amarachi/Build_WRF/fnl_data/*.nc<u></u><u></u></p>
<p style="margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
(2) ln -sf ungrib/Variable_Tables/Vtable.GFS Vtable<u></u><u></u></p>
<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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(3) ./ungrid.exe<u></u><u></u></p>
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<p class="MsoNormal" style="margin-left:36.0pt">it gave this following error:<u></u><u></u></p>
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*** Starting program ungrib.exe ***<u></u><u></u></p>
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Start_date = 2006-03-05_00:00:00 , End_date = 2006-03-14_00:00:00<u></u><u></u></p>
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output format is WPS<u></u><u></u></p>
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Path to intermediate files is ./<u></u><u></u></p>
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ERROR: Grib2 file or date problem, stopping in edition_num.<u></u><u></u></p>
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could anyone guide me. Thanks.<u></u><u></u></p>
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<u></u> <u></u></p>
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<u></u> <u></u></p>
<p style="margin-right:0cm;margin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt">
Alabi Benjamin<u></u><u></u></p>
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<u></u> <u></u></p>
<p class="MsoNormal" style="margin-left:36.0pt"><u></u> <u></u></p>
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<u></u> <u></u></p>
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