Error in Running /.geogrid.exe

[Rajib Lochan Ram]

I want to run WRF(BEP+BEM) model to simulate urban microclimate using UT Globus data. I have attached the namelis.wps and namelist.input file for your referrence. Also attached the error screenshot that I am facing and the attached file in which error is observed is attached. requesting your suggestion and help.

 

[kwerner]

Hi,
In namelist.wps, you have the following listed for the dx and dy variables:

dx = 3000, 1000, 300,
dy = 3000, 1000, 300,

The WPS programs only expect a single entry for each of those variables, and it uses the value for "parent_grid_ratio" to determine the values for nests. So try removing the 2nd and 3rd columns and try again. Let me know if that gets you past this error.

 

[Ioga Lazuardi]

I want to run WRF(BEP+BEM) model to simulate urban microclimate using UT Globus data. I have attached the namelis.wps and namelist.input file for your referrence. Also attached the error screenshot that I am facing and the attached file in which error is observed is attached. requesting your suggestion and help.

dx mean x axis of grid, and y is y axis of grid, that all refers to first domain, other domain will be calculate by ratio, so you just need to add parent id and ratio.

 

[Rajib Lochan Ram]

Thank you for your response. I am able to run geogrid.exe successfully. Pls help me about the error I am facing during /.ungrib.exe.

 

[Ioga Lazuardi]

Thank you for your response. I am able to run geogrid.exe successfully. Pls help me about the error I am facing during /.ungrib.exe.

in wps progress you just need namelist.wps, by the way can you show your data that you link to wps folder? like which ncar data or else that you use, make sure you already link the data correctly from your data folder to wps folder using (./link_grib.csh /(you data path)/data) on wps folder

 

[Rajib Lochan Ram]

Fnl files in input_ungrib directory has been linked to WPS folder. I have attached both the screenshots. I have also used ./link_grib.csh for linking the files.

 

[Rajib Lochan Ram]

Also sharing another screenshot where I have checked fnl files are linked or not. You may check this too.

 

[Dipson11]

Everything looks fine, could you check the file size of your FNL files? sometimes the downloads might have been corrupted.

 

[Rajib Lochan Ram]

I think there is issue with FNL file size. Can you help me with a better and trusted process for downloading fnl files

 

[Ioga Lazuardi]

I think there is issue with FNL file size. Can you help me with a better and trusted process for downloading fnl files

yups looks like corrupt when you download that, maybe you should try to download that again, and retry the ungrib.exe

 

[Dipson11]

NCAR RDA Dataset d083002

NCAR RDA

rda.ucar.edu

There is no standard process, depends on your working environment. I work in a cluster, so, I go to the above website , got to grib2 6h > webfile listing > complete file list >select required data and download the python script which I can run in the terminal to directly extract it to my working environment. you can also check .

NCAR RDA Dataset d084001

NCAR RDA

rda.ucar.edu

 

[Ioga Lazuardi]

NCAR RDA Dataset d083002

NCAR RDA

rda.ucar.edu

There is no standard process, depends on your working environment. I work in a cluster, so, I go to the above website , got to grib2 6h > webfile listing > complete file list >select required data and download the python script which I can run in the terminal to directly extract it to my working environment. you can also check .

NCAR RDA Dataset d084001

NCAR RDA

rda.ucar.edu

i always download my data on my linux terminal using csh script, also i ever use that data and going well on my system wrfv4.4 and was i use wrfv4.0, i think if the data not corrupt it will be run without error massage, also from the domain looks like 4th domain will be +-1km and i think that wont make data error.

 

[Rajib Lochan Ram]

btw im facing that the data date from your namelist.wps and your screenshot data has different date, maybe that make the error

How? Mu date range is from 05-09-2024 (DD-MM-YYYY) to 07-09-2024 (DD-MM-YYYY). I have downloaded fnl files for those many days to conduct a 48 hrs simulation

 

[Dipson11]

How? Mu date range is from 05-09-2024 (DD-MM-YYYY) to 07-09-2024 (DD-MM-YYYY). I have downloaded fnl files for those many days to conduct a 48 hrs simulation

Do as I said.

 

[Ioga Lazuardi]

How? Mu date range is from 05-09-2024 (DD-MM-YYYY) to 07-09-2024 (DD-MM-YYYY). I have downloaded fnl files for those many days to conduct a 48 hrs simulation

hi, so sorry i tag wrong massage, before, btw i already try your case using my data gdas fnl with resolution 0.25 (d083003)
this is my namelist.wps :
&share
wrf_core = 'ARW',
max_dom = 3,
start_date = '2018-08-21_00:00:00', '2018-08-21_00:00:00', '2018-08-21_00:00:00',
end_date = '2018-08-22_21:00:00', '2018-08-22_21:00:00', '2018-08-22_21:00:00',
interval_seconds = 10800,
io_form_geogrid = 2,
debug_level = 0,
/
&geogrid
parent_id = 1, 1, 2,
parent_grid_ratio = 1, 3, 3,
i_parent_start = 1, 53, 71,
j_parent_start = 1, 25, 61,
e_we = 150, 220, 241,
e_sn = 130, 214, 229,
geog_data_res = '10m', '10m', '10m',
dx = 3000,
dy = 3000,
map_proj = 'lambert',
ref_lat = 31.795,
ref_lon = 74.675,
truelat1 = 30.0,
truelat2 = 60.0,
stand_lon = 74.675,
geog_data_path = '/home/ioga1101/WPS_GEOG',
opt_geogrid_tbl_path ='/home/ioga1101/WPS-4.4/geogrid',
/
&ungrib
out_format = 'WPS',
prefix = 'FILE',
/
&metgrid
fg_name = 'FILE',
io_form_metgrid = 2,
opt_metgrid_tbl_path = '/home/ioga1101/WPS-4.4/metgrid',
/

this is working without error, my format data name like in my screenshot, also the size beetwen 150-200mb each file, i hope this can help your problem, i use fnl because i need to running chem model so i need the data that more specific then GFS data

 

[Rajib Lochan Ram]

Presently I am having issues in running ungrib.exe. Also when I tries to visualise the nc files generated after running geogrid.exe, i feel the dimensions of domains have reversed. I have attached the namelist.wps, namelist.input, visualisation image of output generated after running geogrid.exe and screenshot of ungrib error i.e it is unable to link vtable. but have already linked Vtable also. Also when I tried to visualise the domain used using ncl plotgrids_old.ncl command and the base map is not visible. Requesting your help for the same.

 

[Dipson11]

Does your domain looks normal to you? , your innermost domain is only 45,45,45 . It is recommended to keep the number of grids atleast 100 to avoid sweeping effect. Could also be the problem with higher resolution. can you increase number of grids somewhere near to 100 and resoultion, dx and dy to 9000 so that your innermost domain has 1km resolution. (check if it works)

You can visualize your domain from WRF Domain Wizard , well this is not perfect but still gives you an idea about what your domain would look like.

 

[kwerner]

Presently I am having issues in running ungrib.exe.

I'm glad you were able to get past your initial issue with geogrid. If you're still having problems with ungrib, can you post a new thread since that's a different issue? We try to keep the threads to a single issue to make them easier to search/read by others in the future. When you repost, describe the current problem in detail and provide the necessary files. Thanks!