Hello,
I have a problem with the NOx concentration in the CMAQ simulation.
When I simulated the CMAQ, the NOx concentration was significantly underestimated.
Initially, I thought the emission might be the problem, but other teams using the same emission didn’t show this much deviation. Compared to that, ozone concentration is unusually high.
I read a paper describing a CMAQ problem related to vertical dilution, which can exaggerate it to reduce NOx concentration. might it be the case?
CMAQ version is 5.5, compiled with intel Fortran oneAPI.
Thank you.