Detection of ventilation paths using high-resolution roughness parameter mapping in a large urban area

T. Gál, J. Unger

Research output: Contribution to journalArticle

84 Citations (Scopus)

Abstract

In this study, an urban roughness mapping method is presented on the example of a large study area in Szeged, Hungary, as an example. With this roughness mapping procedure, the potential ventilation paths of the city can be located. Our calculations of the roughness parameters are based on a 3D building database; however, this new approach using the lot area polygons provides more detailed results than other recent studies. The detected ventilation paths could play a significant role in the development of the urban heat island circulation and result in the reduction of air pollution in the central parts of the city. Based on our results, we can mark out the areas where the city government should keep the advantages of the ventilation paths considering the human comfort aspects of the urban climate, thus providing important input data for urban planning procedures.

Original languageEnglish
Pages (from-to)198-206
Number of pages9
JournalBuilding and Environment
Volume44
Issue number1
DOIs
Publication statusPublished - Jan 2009

Fingerprint

Ventilation
ventilation
roughness
urban area
Surface roughness
urban climate
planning procedure
mapping method
Urban planning
heat island
air pollution
polygon
Air pollution
urban planning
Hungary
heat
atmospheric pollution
climate
parameter
city

Keywords

  • 3D building database
  • Displacement height
  • Frontal area
  • Porosity
  • Roughness length
  • Urban roughness mapping

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Environmental Engineering
  • Geography, Planning and Development

Cite this

Detection of ventilation paths using high-resolution roughness parameter mapping in a large urban area. / Gál, T.; Unger, J.

In: Building and Environment, Vol. 44, No. 1, 01.2009, p. 198-206.

Research output: Contribution to journalArticle

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