Array index out of bounds for mp_physics==8

[Zongrun Li]

Hi all,

I tried to run a one day 36km case in US with MOZART chemistry. The WRF-Chem ran successfully through 00:00 to 19:20. And then, I got an error message:

no aerosols initialization yet
forrtl: severe (154): array index out of bounds
Image              PC                Routine            Line        Source            
wrf.exe            0000000007AAC4C4  for__signal_handl     Unknown  Unknown
libpthread-2.17.s  00002AAAAC71B630  Unknown               Unknown  Unknown
wrf.exe            00000000051BE113  Unknown               Unknown  Unknown
wrf.exe            00000000051B515F  Unknown               Unknown  Unknown
wrf.exe            0000000002E84F7E  Unknown               Unknown  Unknown
wrf.exe            0000000002E72CB1  Unknown               Unknown  Unknown
wrf.exe            00000000023C9AF5  Unknown               Unknown  Unknown
wrf.exe            0000000002380645  Unknown               Unknown  Unknown
wrf.exe            000000000206EE09  Unknown               Unknown  Unknown
wrf.exe            00000000005DDC1F  Unknown               Unknown  Unknown
wrf.exe            0000000000418441  Unknown               Unknown  Unknown
wrf.exe            00000000004183FF  Unknown               Unknown  Unknown
wrf.exe            0000000000418392  Unknown               Unknown  Unknown
libc-2.17.so       00002AAAAC94A555  __libc_start_main     Unknown  Unknown
wrf.exe            00000000004182A9  Unknown               Unknown  Unknown

Then, I changed the mp_physics from 8 to 2 and the WRF-Chem has ran successfully. Did anyone get this error before? Is it because of my setting or some error in this mp_physics setting? I used WRF Model Version 4.2.

Thanks,

Zongrun

[Zongrun Li]

I think I have found the solution. It seems the memory is not enough to hold a really large array. Try to increase the time step in such situation.