Scheduled Downtime
On Friday 21 April 2023 @ 5pm MT, this website will be down for maintenance and expected to return online the morning of 24 April 2023 at the latest

Error while running ungrib.exe with 1 degree FNL data

DeebakVijay

New member
Greetings,
I am trying to run ./ungrib.exe for 16-10-1999 to 01-11-1999 with FNL 1 degree data .




I am getting the following error,

-------------------------------------------------------------------------------
End-of-record mark (7777) not found1272117438
Sec0(1) = 89678 0
*** stopping in findgrib in gribcode ***\n
\tI could not find the GRIB string in the input file
\tafter testing the first 100,000 bytes.
\tThe file may be corrupt or it is not a GRIB file.
\tPerhaps a gzipped GRIB file or netcdf?\n
STOP findgrib




I followed this : (RESOLVED) ungrib "Grib2 file or date problem" error with ds113.1 data
by adding

&ungrib
ec_rec_len = 26214508

But its now working.

All my files are in grib1 format


This error is happening after "Inventory for date = 1999-11-01 00:00:00"






the following is my namelist.wps

&share
wrf_core = 'ARW',
max_dom = 2,
start_date = '1999-10-16_00:00:00','1999-10-16_00:00:00','2019-04-16_00:00:00',
end_date = '1999-11-01_00:00:00','1999-11-01_00:00:00','2019-04-18_00:00:00',
interval_seconds = 43200
/

&geogrid
parent_id = 1, 1, 2,
parent_grid_ratio = 1, 3, 4,
i_parent_start = 1, 42, 43,
j_parent_start = 1, 125, 6,
e_we = 250, 250, 193,
e_sn = 250, 250, 241,
geog_data_res = 'default','default','default',
dx = 12000,
dy = 12000,
map_proj = 'mercator',
ref_lat = 14,
ref_lon = 90,
truelat1 = 14,
truelat2 = 0,
stand_lon = 90,
geog_data_path = '/scratch/deebak/UCAR_MMM/Build_WRF/WPS_GEOG/'
/

&ungrib
out_format = 'WPS',
prefix = 'FILE',

/

&metgrid
fg_name = 'FILE',
/


Kindly help me to figure it out
, Thank you.
 
Can you try to ungrib the FNL data usage older version of WPS, for example WPSv3.6?
This is because the Vtable has been updated to address new GFS data format, It could be not consistent with FNL.
 
Can you try to ungrib the FNL data usage older version of WPS, for example WPSv3.6?
This is because the Vtable has been updated to address new GFS data format, It could be not consistent with FNL.
As I have access to WPS 3.8.1 , I tried running ungrib.exe with the same data set. This produced the same errors. Should I try it with a much older version or is there any other solution?
Note: This is a part of my work , so for consistency I should be using WRF 4.4 dynamic solver . I am worried about older version WPS or older version ungrib with new WRF.

Looking forward to hear from you.Thank you.
 
Top