Running WRF with MERRA data

[lwu127]

Hi all,
I am using MERRA meteorological data to run WRF v4.0. I used merra2wrf program to prepare input for metgrid.exe and ran WPS successfully. real.exe also ran successfully. But when i ran wrf.exe, these three physical options cannot run correctly:
sf_sfclay_physics = 1,
ra_lw_physics = 4,
ra_sw_physics = 4,
with debug_level=1000, the error message is:
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
wrf.exe 0000000002B645F3 for__signal_handl Unknown Unknown
libpthread-2.17.s 00002AAAACAC8630 Unknown Unknown Unknown
wrf.exe 0000000002697E71 Unknown Unknown Unknown
wrf.exe 0000000002693CB9 Unknown Unknown Unknown
wrf.exe 00000000026918E3 Unknown Unknown Unknown
wrf.exe 000000000201048B Unknown Unknown Unknown
wrf.exe 00000000019E44B5 Unknown Unknown Unknown
wrf.exe 00000000012593F0 Unknown Unknown Unknown
wrf.exe 000000000111EF1C Unknown Unknown Unknown
wrf.exe 000000000053621F Unknown Unknown Unknown
wrf.exe 000000000040F651 Unknown Unknown Unknown
wrf.exe 000000000040F60F Unknown Unknown Unknown
wrf.exe 000000000040F5A2 Unknown Unknown Unknown
libc-2.17.so 00002AAAACCF7555 __libc_start_main Unknown Unknown
wrf.exe 000000000040F4A9 Unknown Unknown Unknown
I have tried to change those into :
sf_sfclay_physics = 91,
ra_lw_physics = 3,
ra_sw_physics = 3,
the model can run smoothly but in wrfout file, most of the meteorological variables are NaN.
Could you please help to fix this?
Thanks so much !!
Lin

 

[Ming Chen]

I suppose the model crashed very soon after the initialization. Please let me know if I am wrong,
Would you please provide more information:
(1) The Merra data in pressure level or on model level?
(2) Can you attach the program merra2wrf for me to take a look?
(3) Please double check the rsl files for both cases, and let me know what error message you can find in those files.
(4) Please attach your namelst.input and namelist.wps for me to take a look.