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

Li, Cathy W. Y.; Brasseur, Guy P.; Schmidt, Hauke; Mellado, Juan Pedro

doi:https://doi.org/10.5194/acp-21-483-2021

Articles | Volume 21, issue 1

https://doi.org/10.5194/acp-21-483-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-483-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 1

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, Guy P. Brasseur, Hauke Schmidt, and Juan Pedro Mellado

Data sets

TLab Documentation J. P. Mellado, C. Ansorge, A. de Lózar, L. Müßle, L., and C. van Heerwaarden https://github.com/turbulencia/tlab

Supplementary Material for Error induced by neglecting subgrid chemical segregation due to inefficient turbulent mixing in regional chemical-transport models in urban environments C. W. Y. Li http://hdl.handle.net/21.11116/0000-0006-11C3-A

Short summary

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.