Articles | Volume 21, issue 1
Atmos. Chem. Phys., 21, 483–503, 2021
https://doi.org/10.5194/acp-21-483-2021
Atmos. Chem. Phys., 21, 483–503, 2021
https://doi.org/10.5194/acp-21-483-2021

Research article 14 Jan 2021

Research article | 14 Jan 2021

Error induced by neglecting subgrid chemical segregation due to inefficient turbulent mixing in regional chemical-transport models in urban environments

Cathy W. Y. Li et al.

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Cited articles

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Intense and localised emissions of pollutants are common in urban environments, in which turbulence cannot mix these segregated pollutants efficiently in the atmosphere. Despite their relatively high resolution, regional models cannot resolve such segregation and assume instantaneous mixing of these pollutants in their model grids, which potentially induces significant error in the subsequent chemical calculation, based on our calculation with a model that explicitly resolves turbulent motions.
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