bias_correction_pm25 executable error output issue

[lgannoaa]

bias_correction_pm25 executable aqm_bias_correct failed to output error in error file when job failed.
Request developer take action to fix:
(1) Add exception handling for ex-script to check for dead slink target before running the executable.
(2) Replace cp in job with production utility cpreq (required by NCO implementation standard).
(3) Debug and fix the root cause for executable aqm_bias_correct not output fail information in errfile (required by NCO implementation standard).

Debug info:
Cactus job log from AQM implementation ecflow parallel shown job failed:
/lfs/h2/emc/ptmp/lin.gan/ecflow_aqm/para/output/prod/today/aqm_bias_correction_pm25_00.o120073813
The executable should show failing information in errfile. But it only show in OUTPUT file

• exaqm_bias_correction_pm25.sh[230]: eval time /lfs/h2/emc/global/noscrub/lin.gan/para/packages/aqm.v7.0.1/exec/aqm_bias_correct config.pm2.5.bias_corr_793.00z 00z 20230305 20240304 '>>/lfs/h2/emc/stmp/lin.gan/aqm/ecflow_aqm/aqm_bias_correction_pm25_00.120073813.cbqs01/OUTPUT.214929' '2>/lfs/h2/emc/stmp/lin.gan/aqm/ecflow_aqm/aqm_bias_correction_pm25_00.120073813.cbqs01/errfile'

As:
/lfs/h2/emc/stmp/lin.gan/aqm/ecflow_aqm/aqm_bias_correction_pm25_00.120073813.cbqs01/data> cat /lfs/h2/emc/stmp/lin.gan/aqm/ecflow_aqm/aqm_bias_correction_pm25_00.120073813.cbqs01/OUTPUT.214929|tail -9
*** All files missing for group: data/bcdata.202403/grid/00z/20240304/aqm.t00z.
chem_sfc.fFFF.nc
*** read_gridded_vars: Error reading gridded data for cycle 2024 03 04 00Z
*** Abort output file for this cycle.

*** spreading: Raw PM25_TOT forecast grids for target forecast cycle are not available.
*** Target forecast cycle = 2024 03 04 00Z
*** Fatal, can not complete bias correction for this forecast cycle.