catalinaporaicu
New member
Hello,
I am currently conducting a 2 day, 3-nested simulation over Reunion Island, and I am trying to use the MOZCART mechanism in WRF-Chem (I am using V4.1.2).
I previously conducted the same simulation without chemistry, the output of which you can see below with the blue line.
However, the run with chemistry has altered the meteorological output quite severely, to the point that this oscillates, especially for 2m surface temperature and relative humidity. My output here is every 5 minutes in the case of both runs.

I have shaded the period that looks the most questionable. It looks like there is an oscillation between maximum peaks every ~1 hour. I am not sure why this would be happening, or how to fix it, so any help is greatly appreciated. I have attached my namelist below.
Things I've checked:
I am currently conducting a 2 day, 3-nested simulation over Reunion Island, and I am trying to use the MOZCART mechanism in WRF-Chem (I am using V4.1.2).
I previously conducted the same simulation without chemistry, the output of which you can see below with the blue line.
However, the run with chemistry has altered the meteorological output quite severely, to the point that this oscillates, especially for 2m surface temperature and relative humidity. My output here is every 5 minutes in the case of both runs.

I have shaded the period that looks the most questionable. It looks like there is an oscillation between maximum peaks every ~1 hour. I am not sure why this would be happening, or how to fix it, so any help is greatly appreciated. I have attached my namelist below.
Things I've checked:
- my input files do not contain any NaNs or unexpected zeros.
- This output was taken at d03, however if I take the same lat-lon location at d02 and d01, we still see the oscillating pattern.
- Other points in the d03 also show some oscillation.
- A not-near point in d01 did not have oscillation.
- I cannot simply do an average of the oscillations to obtain the reading at, let's say, one hour. I require a relatively high temporal output from these simulations (5-10 minutes).