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(Top) O3 observed (black) at Utqiaġvik, Alaska and simulated by WRF‐Chem in the simulation with no halogen chemistry and no updates implemented (blue), SURFACE (orange), BLOWING (yellow) and BOTH (purple) simulations. (Middle) BrO observed by MAX‐DOAS during the BROMEX campaign at Utqiaġvik, and simulated by WRF‐Chem. (Bottom) Br2 simulated by WRF‐Chem at Utqiaġvik.
