Assessing ozone depletion for supersonic aircraft with APCEMM

[Quentin-delaunay]

Hello everybody,

I’m a French student at the Georgia Institute of Technology (Master of Aerospace Engineering), and I am working on a research project that aims to assess ozone depletion caused by the emissions of a fleet of supersonic aircraft.

To do so, I was directed towards APCEMM, which seems suitable for such a task. However, after running a few cases (using the examples provided in version 1.2.1), I am having difficulty extracting the ozone outputs (still using the same examples). Specifically, with these inputs in the "inputs.yaml" file (I also tried with the hetero chem. turned on):

The only output APCEMM seems to generate is the file "ts_aerosol_hhmm.nc," and there is no trace of "ts_hhmm.nc," where I assume the ozone data should be saved (since O3 is not in the "ts_aerosol_hhmm.nc" file). I’ve checked the other NetCDF files but couldn’t find it there either. If I disable the aerosol output, no files are generated at all.

So, my question is: could this be a version problem? From what I understand, APCEMM now seems entirely focused on contrails, and the chemistry component has been deprecated (as mentioned in some comments in the input file and the README). Should I revert to an older version of APCEMM?

Or am I perhaps using it incorrectly?

Thank you in advance,

Quentin Delaunay