WRF-Chem hangs: open_aux_u

[George Priftis]

I have setup a WRF-Chem run to simulate smoke over California and while I have created all the wrffirechemi files using the FINN data, the simulation stops after it writes the first file with the error:

open_aux_u : error opening auxinput5_d01_2020-09-14_06:00:00 for reading. 100
-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE: <stdin> LINE: 314
Possibly missing file for = auxinput7
-------------------------------------------
application called MPI_Abort(MPI_COMM_WORLD, 1) - process 3

I haven't being able to figure out where the file error originates from since I am only running with the biomass burning option on. Any help or guidance would be very appreciated.

[Mary Barth]

Hi George,

It looks like WRF is looking for a file called auxinput5_d01_2020-09-14_06:00:00 which is not the wrffirechemi file. 

You can try this for your namelist option to see if that fixes it:

auxinput7_inname                    = 'wrffirechemi_d<domain>_<date>', 

Also, 

biomass_burn_opt    = 3,   is for MOZART (gas chemistry only)

I suggest changing that to

biomass_burn_opt    = 2,  which includes aerosols.

- Mary

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Mary Barth 

Senior Scientist   

phone: 303-497-8186    email: bar...@ucar.edu

NSF - National Center for Atmospheric Research

P.O. Box 3000

Boulder, CO 80307

Staff web page

SIMA Web Site

MUSICA Web Site

DC3 Web Site 

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[George Priftis]

Thank you Mary! I have already set the auxinput7_inname in the namelist.input under the time_control section.

Seems like it is searching for anthropogenic emission input files. However, in the chem section I have set the emiss_opt and emiss_inpt_opt to 0.