Hello,
I'm using WRF-Chem to simulate hourly levels of O3 and NO2 in the UK for a monthly period of 2019. The results I have for Ozone are good but the behaviour of NO2 looks strange to me. I'm attaching a time series obtained averaging model and observations for each hour of the simulated period taking data from the observation points in urban areas of the UK and relative model points from WRFchem. I am also attaching the namelist used for the simulations.
To understand the problem I took many tests:
- change in the temporal profiles of the emissions (created using HERMES)
- change in physical parameters (mp_physics, cu_physics, bl_pbl_physics)
- change in the time steps (chemdt)
- increasing the anthropogenic emissions by a factor to check the impact on the concentrations
Unfortunately, none of these tests had a reasonable change in the low concentration levels in the outputs. I was wondering if anyone has experienced something similar, or if I am completely missing which can be the issue.
Many thanks in advance for the help,
I'm using WRF-Chem to simulate hourly levels of O3 and NO2 in the UK for a monthly period of 2019. The results I have for Ozone are good but the behaviour of NO2 looks strange to me. I'm attaching a time series obtained averaging model and observations for each hour of the simulated period taking data from the observation points in urban areas of the UK and relative model points from WRFchem. I am also attaching the namelist used for the simulations.
To understand the problem I took many tests:
- change in the temporal profiles of the emissions (created using HERMES)
- change in physical parameters (mp_physics, cu_physics, bl_pbl_physics)
- change in the time steps (chemdt)
- increasing the anthropogenic emissions by a factor to check the impact on the concentrations
Unfortunately, none of these tests had a reasonable change in the low concentration levels in the outputs. I was wondering if anyone has experienced something similar, or if I am completely missing which can be the issue.
Many thanks in advance for the help,