error while running wrf-chem

[Vaishnavi_198]

Hey everyone,

I tried to run a wrf-chem simulation after preparing all the emission input files, like fire emission, biogenic emission and anthropogenic emissions but I ran into the error. I do not know what is wrong. I am using WRF version 4.3.3. Please find attached the rsl file and namelist.input file

Timing for Writing wrfout_d01_2023-01-01_00:00:00 for domain 1: 2.84189 elapsed seconds
d01 2023-01-01_00:00:00 CALL med_read_wrf_chem_emiss
mediation_integrate: med_read_wrf_chem_emissions: Open file wrfchemi_00z_d01
HOURLY EMISSIONS UPDATE TIME 0.0 0.0
mediation_integrate: med_read_wrf_chem_emissions: Read emissions for time 2023-01-01_00:00:00
d01 2023-01-01_00:00:00 mediation_integrate: calling input_auxinput5
d01 2023-01-01_00:00:00 NetCDF error: NetCDF: Attribute not found
d01 2023-01-01_00:00:00 NetCDF error in ext_ncd_get_dom_ti.code CHAR, line 83 Element TITLE
d01 2023-01-01_00:00:00 Error trying to read metadata
d01 2023-01-01_00:00:00 File name that is causing troubles = wrfchemi_00z_d01
d01 2023-01-01_00:00:00 You can try 1) ensure that the input file was created with WRF v4 pre-processors, or


Thank you

 

[William.Hatheway]

If no one is able to help you @Vaishnavi_198 there are some google groups that might be able to help while you wait for an answer from the Admins. These are specialized groups for those specific areas

wrf-chem - Google Groups

groups.google.com

wrf-chem-fire_emiss - Google Groups

groups.google.com

wrf-chem-mozbc - Google Groups

groups.google.com

 

[Vaishnavi_198]

Thank you William I will check it out

 

[William.Hatheway]

@Vaishnavi_198 you are welcome

 

[pamelapas]

Hi @Vaishnavi_198,

I don't know if you managed to fixed the error in the end. However the solution is to include the string "V4" (referring to the WRF version being >= 4.0) in the TITLE attribute of your emission files. Hopefully it will help other people facing the same problem.

 

[Nikhilk]

Hi @Vaishnavi_198,

I don't know if you managed to fixed the error in the end. However the solution is to include the string "V4" (referring to the WRF version being >= 4.0) in the TITLE attribute of your emission files. Hopefully it will help other people facing the same problem.

Hi Pamelapas

I just want to know where to add this string "V4" , I am facing the same problem

 

[pamelapas]

Hi Pamelapas

I just want to know where to add this string "V4" , I am facing the same problem

The TITLE attribute should be part of your netcdf emission files. I don't remeber exactly what anthro-emis (the pre-processing tool I use for emissions) writes for that attribute, but should be something along the lines of "Emissions for WRF", to which I added "V4". There is a subroutine somewhere in the WRF code that tests for the presence of those two characters.