Original scientific paper

LINKING URBAN (STREET CANYON) MODELS WITH REGIONAL AIR QUALITY MODELS THROUGH URBAN BOUNDARY CONDITIONS

Clemens Mensink ; Flemish Institute for Technological Research (VITO), Boeretang 200, B-2400 Mol, Belgium
Karen Van de Vel ; Flemish Institute for Technological Research (VITO), Boeretang 200, B-2400 Mol, Belgium
Koen De Ridder ; Flemish Institute for Technological Research (VITO), Boeretang 200, B-2400 Mol, Belgium
Peter Viaene ; Flemish Institute for Technological Research (VITO), Boeretang 200, B-2400 Mol, Belgium
Stijn Janssen ; Flemish Institute for Technological Research (VITO), Boeretang 200, B-2400 Mol, Belgium

Abstract

This contribution addresses the question of how detailed information from the urban canopy can be assimilated into
regional models. This detailed information concerns, among others, road transport emissions, specific exchange and turbulence
patterns in the built up canopy, and effects of roads and roughness elements on wind direction and wind speed. This information is
typically obtained from detailed street canyon models in combination with traffic emission models. In order to integrate the
dynamics of the urban canopy into regional air quality models, we propose the formulation of urban boundary conditions. The
formulation has been tested and compared with measurements for benzene and NOx in the city of Antwerp, Belgium.

Keywords

Urban air quality; street canyons,NOx; benzene; boundary conditions; emission and deposition fluxes

Hrčak ID:

64263

URI

https://hrcak.srce.hr/64263

Publication date:

12.12.2008.

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