Author(s): Mark-Andrian Skljarov; Janek Laanearu
Linked Author(s): Janek Laanearu
Keywords: No Keywords
Abstract: It is shown that a low-height point source of atmospheric exhaust emissions causes seasonally dependent plumes in a city environment due to marine winds. An in-house developed CFD tool is used to generate smellscape maps, which includes the air temperature and pollution fields in pedestrian zone, near buildings and inside greenery areas. Four scenarios, considering distinct marine–urban areas temperature contrasts over one year period, are used to demonstrate the stratified-flow dynamics and access air-pollutant impacts in an urban canopy. The winter and summer times scenarios are used to demonstrate the air pollution distribution with less and most worst impact of pollutant in the close vicinity of point source, respectively. The spring and autumn times scenarios correspond to different inversed-temperature situations, where the point-source pollutant is trapped due to development of the stratified flow in the urban canopy.
Year: 2026