2021
DOI: 10.5194/egusphere-egu21-1992
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Impact of urban emission on local and regional air-quality: investigating the role of the urban canopy meteorological forcing

Abstract: <p>Urban canopies impact the meteorological conditions in the planetary boundary layer (PBL) and above in many ways: apart from urban heat island effect, the urban breeze circulation can form. Further, the enhanced drag causes intensification of the turbulent diffusion leading to elevated PBL height and this drag, at the same time causes lower windspeeds. These changes together act as a 'meteorological forcing' for the chemical processes involing transport, diffusion and chemical transformation o… Show more

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