I intend to downgrade my emission speciation from CB6AE7 to CB5AE5, and your help is greatly appreciated.
My emission species are as follows:
While the emission I need in CB5AE5 is as follows:
I have been searching through the forum, speciation tool manual, and TSDs. I understand that differences include 3 steps, downgrading from CB6 to CB5, and downgrading from AE7 to AE6, and from AE6 to AE5.
For conversion from CB6 to CB5, as mentioned in " UPDATES TO THE CARBON BOND MECHANISM FOR VERSION 6 (CB6)", I see the difference is new explicit species for PRPA, ETHY, ACET, KET, and new definition for BENZEN. For the first four I do not worry because I am downgrading, and for the BENZEN, I am recalculating BENZ as PAR + 5 NR ( NR comes from PRPA and PAR in CB6 emission).
For the conversion from AE7 to AE6, as mentioned in Does old emission input data work with new version of CMAQ-5.3.1? - #2 by Havala.Pye , I will use naphthalene to calculate XYL needed in CB5. But I do not know how to consider splitting APIN from TERP (do I need to sum these two?)
I also have BPIN in my CB5AE5 emission which I do not know where to get it from (I need to have SESQ as well).
Do I need to add ALD2_PRIMARY and ALD2 to have downgraded ALD2, (Likewise for FORM, and CH4 and CH4_INV)
And for downgrading from AE6 to AE5, I notice that I miss many species, while I have to calculate PMFINE.
And after all, is there a 1 to 1 relation between the rest of the species? Thank you very much.