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Article: Summertime heat island intensities in three high-rise housing quarters in inner-city Shanghai China: Building layout, density and greenery

TitleSummertime heat island intensities in three high-rise housing quarters in inner-city Shanghai China: Building layout, density and greenery
Authors
KeywordsDensity
Environmental design
Greenery
Plot layout
Urban heat islands
Issue Date2010
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/buildenv
Citation
Building And Environment, 2010, v. 45 n. 1, p. 115-134 How to Cite?
AbstractShanghai as the largest city in China has been suffering from the ever-worsening thermal environment due to the explosive urbanization rate. As an indication of urbanization impact, urban heat islands (UHI) can give rise to a variety of problems. This paper reports the results of an empirical study on the summertime UHI patterns in three high-rise residential quarters in the inner-city Shanghai. Site-means of UHI intensity are compared; case studies are carried out on strategically located measurement points; and regression analysis is followed to examine the significance of the on-site design variables in relation to UHI intensity. It is found that site characteristics in plot layout, density and greenery have different impacts on UHI-day and UHI-night patterns. Day-time UHI is closely related to site shading factor. Total site factor (TSF) as an integrated measure on solar admittance shows a higher explanatory power in UHI-day than sky view factor (SVF) does under a partially cloudy sky condition. Night-time UHI cannot be statistically well explained by the on-site variables in use, indicating influences from anthropogenic heat and other sources. Evaporative cooling by vegetation plays a more important role at night than it does at day. Considered diurnally, the semi-enclosed plot layout with a fairly high density and tree cover has the best outdoor thermal condition. Design implication based on the findings, with consideration on other important environmental design issues, is briefly discussed. © 2009 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/138847
ISSN
2015 Impact Factor: 3.394
2015 SCImago Journal Rankings: 2.121
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYang, Fen_HK
dc.contributor.authorLau, SSYen_HK
dc.contributor.authorQian, Fen_HK
dc.date.accessioned2011-09-23T05:41:07Z-
dc.date.available2011-09-23T05:41:07Z-
dc.date.issued2010en_HK
dc.identifier.citationBuilding And Environment, 2010, v. 45 n. 1, p. 115-134en_HK
dc.identifier.issn0360-1323en_HK
dc.identifier.urihttp://hdl.handle.net/10722/138847-
dc.description.abstractShanghai as the largest city in China has been suffering from the ever-worsening thermal environment due to the explosive urbanization rate. As an indication of urbanization impact, urban heat islands (UHI) can give rise to a variety of problems. This paper reports the results of an empirical study on the summertime UHI patterns in three high-rise residential quarters in the inner-city Shanghai. Site-means of UHI intensity are compared; case studies are carried out on strategically located measurement points; and regression analysis is followed to examine the significance of the on-site design variables in relation to UHI intensity. It is found that site characteristics in plot layout, density and greenery have different impacts on UHI-day and UHI-night patterns. Day-time UHI is closely related to site shading factor. Total site factor (TSF) as an integrated measure on solar admittance shows a higher explanatory power in UHI-day than sky view factor (SVF) does under a partially cloudy sky condition. Night-time UHI cannot be statistically well explained by the on-site variables in use, indicating influences from anthropogenic heat and other sources. Evaporative cooling by vegetation plays a more important role at night than it does at day. Considered diurnally, the semi-enclosed plot layout with a fairly high density and tree cover has the best outdoor thermal condition. Design implication based on the findings, with consideration on other important environmental design issues, is briefly discussed. © 2009 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/buildenven_HK
dc.relation.ispartofBuilding and Environmenten_HK
dc.subjectDensityen_HK
dc.subjectEnvironmental designen_HK
dc.subjectGreeneryen_HK
dc.subjectPlot layouten_HK
dc.subjectUrban heat islandsen_HK
dc.titleSummertime heat island intensities in three high-rise housing quarters in inner-city Shanghai China: Building layout, density and greeneryen_HK
dc.typeArticleen_HK
dc.identifier.emailLau, SSY:ssylau@hku.hken_HK
dc.identifier.authorityLau, SSY=rp01006en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.buildenv.2009.05.010en_HK
dc.identifier.scopuseid_2-s2.0-70249116027en_HK
dc.identifier.hkuros159350en_US
dc.identifier.hkuros195287-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70249116027&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume45en_HK
dc.identifier.issue1en_HK
dc.identifier.spage115en_HK
dc.identifier.epage134en_HK
dc.identifier.isiWOS:000271350500017-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridYang, F=7403449397en_HK
dc.identifier.scopusauthoridLau, SSY=24734045900en_HK
dc.identifier.scopusauthoridQian, F=35211614000en_HK
dc.identifier.citeulike5352307-

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