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Spin-up time


Dear all,

I wonder how many days I should consider as spinup for my WRF-Chem simulation using chem_opt = 202. I need to simulate from 2021-01-29 to 2021-01-31, so how many days should be considered as spin-up, please?

Look forward to hearing your advice.

Best wishes.
I am not a wrf-chem person. But just as a general rule. 9-12 hours of integration should be sufficient for WRF spin-up.