Error while running chem_opt=202

[Varun Katoch]

I hope this email finds you well. I am writing about an error encountered while running Chemistry Operation 202. Upon execution, the system returned the following error message:

WRF NUMBER OF TILES =   1
d01 2018-07-01_00:00:00  ----------------------------------------
d01 2018-07-01_00:00:00  W-DAMPING  BEGINS AT W-COURANT NUMBER =    1.00000000
d01 2018-07-01_00:00:00  ----------------------------------------
           1          45
 calculate MEGAN emissions at ktau, gmtp, tmidh =            1   0.00000000       5.55555569E-03
 photolysis_driver: called for domain            1
Error in SOAP
-------------- FATAL CALLED ---------------
FATAL CALLED FROM FILE:  <stdin>  LINE:    5711
Error: max number of iterations reached
-------------------------------------------
Abort(1) on node 0 (rank 0 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0

[Mary Barth]

Varun,

I have not seen this error before. I just 

grep SOAP *F

in the chem/ directory to find that it is related to MOSAIC aerosols and likely the thermodynamic calculation.

So, it would be my guess that the aerosol concentrations or their precursors are unrealistic. I would examine aerosol component concentrations, initial conditions, and emissions to determine what aerosols are being affected. Trace gases to look at are SO2, NH3, HNO3, SOAG species.

Regards,

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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