Hello all,
I am currently using CMAQv5.4 ISAM to track OA_TOT
. However, due to the large number of TAG NAME
entries, the resulting variable count becomes overwhelming, often leading to the error:
Could not open SA_CONC_1 : Maximum number of files already opened.
To address this, I would like to reduce the number of output variables by customizing species within the ELMO module. Specifically, I would like to aggregate certain variables into new user-defined species and have ISAM track these aggregated species directly.
Additionally, I noticed that CMAQv5.5 introduces changes that expand ISAM capabilities to quantify source contributions to total secondary organic aerosol (SOA) and individual species. However, I have not yet tested this version and am unsure whether it can fulfill my requirements.
Could you please provide guidance on:
- How to define and track custom species in ISAM using the ELMO module in CMAQv5.4?
- Whether CMAQv5.5 offers a built-in solution for this issue or requires further customization?
Thank you for your insights and suggestions!
@Ben_Murphy @hogrefe.christian @sergey
Best regards,
Jin