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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
Title | Summertime heat island intensities in three high-rise housing quarters in inner-city Shanghai China: Building layout, density and greenery |
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Authors | |
Keywords | Density Environmental design Greenery Plot layout Urban heat islands |
Issue Date | 2010 |
Publisher | Pergamon. 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? |
Abstract | Shanghai 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 Identifier | http://hdl.handle.net/10722/138847 |
ISSN | 2023 Impact Factor: 7.1 2023 SCImago Journal Rankings: 1.647 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yang, F | en_HK |
dc.contributor.author | Lau, SSY | en_HK |
dc.contributor.author | Qian, F | en_HK |
dc.date.accessioned | 2011-09-23T05:41:07Z | - |
dc.date.available | 2011-09-23T05:41:07Z | - |
dc.date.issued | 2010 | en_HK |
dc.identifier.citation | Building And Environment, 2010, v. 45 n. 1, p. 115-134 | en_HK |
dc.identifier.issn | 0360-1323 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/138847 | - |
dc.description.abstract | Shanghai 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.language | eng | en_US |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/buildenv | en_HK |
dc.relation.ispartof | Building and Environment | en_HK |
dc.subject | Density | en_HK |
dc.subject | Environmental design | en_HK |
dc.subject | Greenery | en_HK |
dc.subject | Plot layout | en_HK |
dc.subject | Urban heat islands | en_HK |
dc.title | Summertime heat island intensities in three high-rise housing quarters in inner-city Shanghai China: Building layout, density and greenery | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Lau, SSY:ssylau@hku.hk | en_HK |
dc.identifier.authority | Lau, SSY=rp01006 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.buildenv.2009.05.010 | en_HK |
dc.identifier.scopus | eid_2-s2.0-70249116027 | en_HK |
dc.identifier.hkuros | 159350 | en_US |
dc.identifier.hkuros | 195287 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-70249116027&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 45 | en_HK |
dc.identifier.issue | 1 | en_HK |
dc.identifier.spage | 115 | en_HK |
dc.identifier.epage | 134 | en_HK |
dc.identifier.isi | WOS:000271350500017 | - |
dc.publisher.place | United Kingdom | en_HK |
dc.identifier.scopusauthorid | Yang, F=7403449397 | en_HK |
dc.identifier.scopusauthorid | Lau, SSY=24734045900 | en_HK |
dc.identifier.scopusauthorid | Qian, F=35211614000 | en_HK |
dc.identifier.citeulike | 5352307 | - |
dc.identifier.issnl | 0360-1323 | - |