Several days ago I am asking, how CCTM process to obtain the initial concentrations in any simulation.
I ran the data example for a single day, the SE52BENCH case and I observed the relation between Black carbon emission (PEC) and the output concentration obtained.
Since the initial hour, the AECJ and AECI (elemental carbon in output) concentrations are around 4 ug/m3. I saw the initial concentration made in ICON module and AECJ and AECI are not defined, so CCTM starts with 1*E-30 by default.
The question for me is why when I want to work with another case (in hemispheric domain), using the same initial concentration (AECJ and AECI not defined in ICON and BCON) I obtained concentrations about 1*E-22 ug/m3.
Is there any modification or change to do in the run script ?? How CCTM gets those initial values?
Please if you can help me, I will thank forever.