[Wrf-users] ungrib.exe run error

[Richard Newton]

Dear Awkash,

The “Grib2 file or date problem…” error has plagued me for months, and I’ve found a couple reasons why this may occur:


1.       Is FNL_2014 a folder? If so, ungrib.exe is trying to ungrib the folder rather than the files within the folder. Use the command
./link_grib.csh /home/external/iitb/awkash/FNL_2014/*

2.       Is there anything in the folder that isn’t a GRIB file, or a corrupt GRIB file? ungrib.exe will try to ungrib it and fail.

Hope this helps,
Richard

Richard Newton
PhD Student
School of Earth, Atmospheric and Environmental Sciences
University of Manchester

From: Awkash kumar gupta [mailto:awkash.narayan at gmail.com]
Sent: 18 March 2015 07:16
To: wrf-users at ucar.edu
Subject: [Wrf-users] ungrib.exe run error

 Dear All,

I am getting error when running ungrib.exe using fnl data. Error message is

 *** Starting program ungrib.exe ***
Start_date =  2014-03-01_00:00:00 ,      End_date = 2014-04-05_18:00:00
output format is WPS
Path to intermediate files is ./
ERROR: Grib2 file or date problem, stopping in edition_num.

I have given command

ln -sf ungrib/Variable_Tables/Vtable.GFS Vtable
./link_grib.csh /home/external/iitb/awkash/FNL_2014

namelist.input is

&share
 wrf_core = 'ARW',
 max_dom = 3,
 start_date = '2014-03-01_00:00:00', '2014-03-01_00:00:00', '2014-03-01_00:00:00',
 end_date   = '2014-04-05_18:00:00', '2014-04-05_18:00:00', '2014-04-05_18:00:00',
 interval_seconds = 10800,
 io_form_geogrid = 2,
 opt_output_from_geogrid_path = '/home/external/iitb/awkash/WRFAll/WPS/',
 debug_level = 0,
/

&geogrid
 parent_id         = 1,1,2,
 parent_grid_ratio = 1,3,3,
 i_parent_start    = 1,11,30,
 j_parent_start    = 1,24,44,
 e_we          = 100,88,88,
 e_sn          = 115,103,73,
 geog_data_res = '10m','10m','10m',
 dx = 25000,
 dy = 25000,
 map_proj =  'mercator',
 ref_lat   = 22.807,
 ref_lon   = 78.819,
 truelat1  = 22.807,
 truelat2  = 22.807,
 stand_lon = 78.819,
 geog_data_path = '/home/external/iitb/awkash/geog',
 opt_geogrid_tbl_path = '/home/external/iitb/awkash/WRFAll/WPS/',
 ref_x = 50.0,
 ref_y = 57.5,
/

&ungrib
 out_format = 'WPS',
 prefix = 'FILE',
/
&metgrid
 fg_name = 'FILE',
 io_form_metgrid = 2,
 opt_output_from_metgrid_path = '/home/external/iitb/awkash/WRFAll/WPS/',
 opt_metgrid_tbl_path = '/home/external/iitb/awkash/WRFAll/WPS/',
/

&mod_levs
 press_pa = 201300 , 200100 , 100000 ,
             95000 ,  90000 ,
             85000 ,  80000 ,
             75000 ,  70000 ,
             65000 ,  60000 ,
             55000 ,  50000 ,
             45000 ,  40000 ,
             35000 ,  30000 ,
             25000 ,  20000 ,
             15000 ,  10000 ,
              5000 ,   1000
 /


[Displaying image.png]


Awkash Kumar,
Center for Environmental Science and Engineering (CESE),
Indian Institute of Technology (IIT) Bombay,
Powai, Mumbai-400076,

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.ucar.edu/pipermail/wrf-users/attachments/20150319/ec9929bc/attachment-0001.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.png
Type: image/png
Size: 28661 bytes
Desc: image001.png
Url : http://mailman.ucar.edu/pipermail/wrf-users/attachments/20150319/ec9929bc/attachment-0001.png