Differences in human comfort conditions within a complex urban enviroment : a case study

Gulyás, Ágnes: Differences in human comfort conditions within a complex urban enviroment : a case study. In: Acta climatologica, (38-39). pp. 71-84. (2005)

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Abstract

Several complex thermal indices (e.g. Predicted Mean Vote and Physiological Equivalent Temperature) have been developed in the last decades to describe and quantify the thermal environment of humans and the energy fluxes between body and environment. Compared to open spaces/landscapes the complex surface structure of urban areas creates an environment with special microclimatic characteristics, which have a dominant effect on the energy balance of the human body. In this study, outdoor thermal comfort conditions are examined through a field survey in Szeged, a South-Hungarian city (population 160,000). The intensity of radiation fluxes depends on several factors, such as surface structure and housing density. Since our sample area is located in a heavily built-up city centre, radiation fluxes are mainly influenced by narrow streetsand several 20-30 year old (20-30 m tall) trees. Special emphasis is given to the húman-biometeorological assessment of the microclimate of complex urban environments through the application of the thermal index PET. The analysis is carried out by the utilization of the RayMan model. Bioctimatic conditions of sites located close to each other but shaded differently by buildings and plants are compared. According to the results differences in the PET index amongst these places can be as high as due to the different irradiation.

Item Type: Article
Journal or Publication Title: Acta climatologica
Date: 2005
Volume: 38-39
ISSN: 0563-0614
Page Range: pp. 71-84
Language: angol
Uncontrolled Keywords: Szeged, Földrajztudomány
Additional Information: Bibliogr.: p. 83-84.; Összefoglalás; Summary
Date Deposited: 2016. Oct. 15. 14:10
Last Modified: 2018. Jun. 04. 12:58
URI: http://acta.bibl.u-szeged.hu/id/eprint/16886

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