NaN or Infinity detected on processor

MPAS-CMAQ
1

Hello, everyone.

I am running the model using the officially released MPAS-CMAQ. All input files are from the official release, and I have not made any modifications. When I run the simulation starting from January 1, 2017, using the default script (config_px_modis_veg=0), MPAS-CMAQ runs normally. However, when I set config_px_modis_veg=1 (because I want to use MODIS as input), the model always crashes at the same point. The error message reads:

NaN or Infinity detected on processor 022
During VDIFF : Gas NaN | Aer NaN | Non 4.831E-05.

At first, I thought this was due to issues with the “lai12m” or “greenfrac” included with MPAS-CMAQ, so I created my own versions of “lai12m” and “greenfrac”. Strangely, MPAS-CMAQ still crashes, but at a different time than before. It should be noted that when I run the simulation starting from 2017-07-01, this problem does not occur, and the model runs normally. I would like to know why the above error occurs and whether config_px_modis_veg=1 is a deprecated option. I would be very grateful for any reply.

run.csh (25.8 KB)

I have uploaded my run script and the specific error messages are as follows:

 Processing Day/Time [YYYYDDD:HHMMSS]: 2017006:233000
   Which is Equivalent to (UTC): 23:30:00 Friday,  Jan. 6, 2017
   Time-Step Length (HHMMSS): 000730
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
        NEW_START  |           F
   NaN or Infinity detected on processor 022
   During        VDIFF :  Gas        NaN  | Aer        NaN  | Non  4.831E-05
   NaN or Infinity detected on processor 019
   During        VDIFF :  Gas        NaN  | Aer        NaN  | Non  3.163E-05
   NaN or Infinity detected on processor 023
   During        VDIFF :  Gas        NaN  | Aer        NaN  | Non  2.065E-05
===================================================================================

=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES=   RANK 0 PID 4996 RUNNING AT ls-Super-Server=   KILLED BY SIGNAL: 9 (Killed)

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WXY