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Spatially-varying surface roughness and ground-level air quality in an operational dispersion model

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Spatially-varying surface roughness and ground-level air quality in an operational dispersion model. / Barnes, Matthew; Brade, Thomas K. ; Mackenzie, A. Robert et al.
In: Environmental Pollution, Vol. 185, 02.2014, p. 44-51.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Barnes, M, Brade, TK, Mackenzie, AR, Whyatt, D, Carruthers, DJ, Stocker, J, Cai, X & Hewitt, CN 2014, 'Spatially-varying surface roughness and ground-level air quality in an operational dispersion model', Environmental Pollution, vol. 185, pp. 44-51. https://doi.org/10.1016/j.envpol.2013.09.039

APA

Barnes, M., Brade, T. K., Mackenzie, A. R., Whyatt, D., Carruthers, D. J., Stocker, J., Cai, X., & Hewitt, C. N. (2014). Spatially-varying surface roughness and ground-level air quality in an operational dispersion model. Environmental Pollution, 185, 44-51. https://doi.org/10.1016/j.envpol.2013.09.039

Vancouver

Barnes M, Brade TK, Mackenzie AR, Whyatt D, Carruthers DJ, Stocker J et al. Spatially-varying surface roughness and ground-level air quality in an operational dispersion model. Environmental Pollution. 2014 Feb;185:44-51. Epub 2013 Nov 8. doi: 10.1016/j.envpol.2013.09.039

Author

Barnes, Matthew ; Brade, Thomas K. ; Mackenzie, A. Robert et al. / Spatially-varying surface roughness and ground-level air quality in an operational dispersion model. In: Environmental Pollution. 2014 ; Vol. 185. pp. 44-51.

Bibtex

@article{4682d692a78949ee8db326662f88c8be,
title = "Spatially-varying surface roughness and ground-level air quality in an operational dispersion model",
abstract = "Urban form controls the overall aerodynamic roughness of a city, and hence plays a significant role in how air flow interacts with the urban landscape. This paper reports improved model performance resulting from the introduction of variable surface roughness in the operational air-quality model ADMS-Urban (v3.1). We then assess to what extent pollutant concentrations can be reduced solely through local reductions in roughness. The model results suggest that reducing surface roughness in a city centre can increase ground-level pollutant concentrations, both locally in the area of reduced roughness and downwind of that area. The unexpected simulation of increased ground-level pollutant concentrations implies that this type of modelling should be used with caution for urban planning and design studies looking at ventilation of pollution. We expect the results from this study to be relevant for all atmospheric dispersion models with urban-surface parameterisations based on roughness.",
keywords = "air quality, ADMS-Urban, Aerodynamic roughness, Street canyons, urban breathability",
author = "Matthew Barnes and Brade, {Thomas K.} and Mackenzie, {A. Robert} and Duncan Whyatt and Carruthers, {D. J.} and Jenny Stocker and X. Cai and Hewitt, {C. N.}",
year = "2014",
month = feb,
doi = "10.1016/j.envpol.2013.09.039",
language = "English",
volume = "185",
pages = "44--51",
journal = "Environmental Pollution",
issn = "0269-7491",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Spatially-varying surface roughness and ground-level air quality in an operational dispersion model

AU - Barnes, Matthew

AU - Brade, Thomas K.

AU - Mackenzie, A. Robert

AU - Whyatt, Duncan

AU - Carruthers, D. J.

AU - Stocker, Jenny

AU - Cai, X.

AU - Hewitt, C. N.

PY - 2014/2

Y1 - 2014/2

N2 - Urban form controls the overall aerodynamic roughness of a city, and hence plays a significant role in how air flow interacts with the urban landscape. This paper reports improved model performance resulting from the introduction of variable surface roughness in the operational air-quality model ADMS-Urban (v3.1). We then assess to what extent pollutant concentrations can be reduced solely through local reductions in roughness. The model results suggest that reducing surface roughness in a city centre can increase ground-level pollutant concentrations, both locally in the area of reduced roughness and downwind of that area. The unexpected simulation of increased ground-level pollutant concentrations implies that this type of modelling should be used with caution for urban planning and design studies looking at ventilation of pollution. We expect the results from this study to be relevant for all atmospheric dispersion models with urban-surface parameterisations based on roughness.

AB - Urban form controls the overall aerodynamic roughness of a city, and hence plays a significant role in how air flow interacts with the urban landscape. This paper reports improved model performance resulting from the introduction of variable surface roughness in the operational air-quality model ADMS-Urban (v3.1). We then assess to what extent pollutant concentrations can be reduced solely through local reductions in roughness. The model results suggest that reducing surface roughness in a city centre can increase ground-level pollutant concentrations, both locally in the area of reduced roughness and downwind of that area. The unexpected simulation of increased ground-level pollutant concentrations implies that this type of modelling should be used with caution for urban planning and design studies looking at ventilation of pollution. We expect the results from this study to be relevant for all atmospheric dispersion models with urban-surface parameterisations based on roughness.

KW - air quality

KW - ADMS-Urban

KW - Aerodynamic roughness

KW - Street canyons

KW - urban breathability

U2 - 10.1016/j.envpol.2013.09.039

DO - 10.1016/j.envpol.2013.09.039

M3 - Journal article

VL - 185

SP - 44

EP - 51

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

ER -