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Effect of heat island on the meteorology of a complex urban airshed
Journal article   Peer reviewed

Effect of heat island on the meteorology of a complex urban airshed

S M Khan and Rodney W Simpson
Boundary-Layer Meteorology: an international journal of physical and biological processes in the atmospheric boundary layer, Vol.100(3), pp.487-506
2001
url
https://doi.org/10.1023/A:1019284332306View
Published Version

Abstract

Atmospheric Sciences anthropogenic heat flux complex urban airshed mesoscale modelling
A three-dimensional mesoscale model was used to study the effect of an urban heat island in a relatively complex situation. A heat emission inventory was carried out for an urban airshed thatincludes sources such as motor vehicles, waste heat from industries and electricity consumption. To demonstrate the relative significance of anthropogenic heat flux and variant surface characteristics, three model simulations were conducted. In the first simulation, anthropogenic heat flux was ignored and non-variant surface properties were considered for the entire modelling domain. In the second simulation, variant surface characteristics were considered. While in the third simulation, gridded anthropogenic heat flux and variant surface characteristic were utilised. From these experiments, it was inferred that an additional source of heat in urban areas can substantially affect the wind and temperature regime under light wind conditions. During the day, the anthropogenic heat flux has minimum effect on the urban temperature, however it magnifies the intensity of the convergence near the urban areas.

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Meteorology & Atmospheric Sciences

UN Sustainable Development Goals (SDGs)

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#11 Sustainable Cities and Communities
#13 Climate Action

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