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The impact of façade orientation and woody vegetation on summertime heat stress patterns in a Central-European square: comparison of radiation measurements and simulations
Dalarna University, School of Technology and Business Studies, Energy Technology.ORCID iD: 0000-0003-4573-0026
2017 (English)In: Advances in Meteorology, ISSN 1687-9309, E-ISSN 1687-9317Article in journal (Refereed) In press
Abstract [en]

Increasing summertime air temperature deteriorates human health especially in cities where the warming tendency is exacerbated by urban heat island. Human-biometeorological studies shed light on the primary role of radiation conditions in the development of summertime heat stress. However, only a limited number of field investigations have been conducted up to now. Based on a 26-hour long complex radiation measurement this study presents the evolved differences within a medium-sized rectangular square in Szeged, Hungary. Besides assessing the impact of woody vegetation and façade orientation on the radiation heat load, different modeling software (ENVI-met, SOLWEIG, RayMan) are evaluated in reproducing mean radiant temperature (Tmrt).Although daytime Tmrt can reach extreme level at exposed locations (65–75°C) mature shade trees can reduce it to 30–35°C. Nevertheless, shading from buildings adjacent to sidewalks plays also an important role in mitigating pedestrian heat stress. Sidewalks facing to SE, S and SW do not benefit from the shading effect of buildings therefore shading them by trees or artificial shading devices is of high importance. The measurement–model comparison revealed smaller or larger discrepancies that raise awareness on the careful adaptation of any modeling software and on the relevance of fine-resolution field measurements.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation, 2017.
National Category
Meteorology and Atmospheric Sciences
Research subject
Energy, Forests and Built Environments
Identifiers
URN: urn:nbn:se:du-26611OAI: oai:DiVA.org:du-26611DiVA: diva2:1159847
Available from: 2017-11-23 Created: 2017-11-23 Last updated: 2017-12-04Bibliographically approved

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https://www.hindawi.com/journals/amete/aip/

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Gál, Csilla V

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf