File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Urban design factors influencing heat island intensity in high-rise high-density environments of Hong Kong

TitleUrban design factors influencing heat island intensity in high-rise high-density environments of Hong Kong
Authors
KeywordsCausal Effect Housing Estate (Residential Development)
Later Summer Days
Peak Summer Clear Sky Days
Peak Summer Partially Cloudy Days
Seasonal Changes
Territorial Impact
Urban Design Variables
Issue Date2007
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/buildenv
Citation
Building And Environment, 2007, v. 42 n. 10, p. 3669-3684 How to Cite?
AbstractPrevious research on Urban Heat Island Intensity (UHI) in Hong Kong was limited to 4 weeks of field measurements during the summer in 3 major coastal housing estates. The current study extends this work to 6 months enveloping 3 "seasons" and 7 different locations within the coastal area. Variations in UHI in the range -1.3 ° to 3.4 °C were recorded. The study reveals seasonal changes are in general more influential on UHI than changes due to geographical characteristics. Among the seasonal models, the peak summer clear sky day's daytime and nocturnal models examined separately were found to provide the clearest indicators of the impact of urban design variables on UHI with R2 value of 0.7 and 0.8, respectively. Sky view factor, surface albedo, altitude, vegetation above 1 m in height, average height to floor area ratio, location quotient and proximity to sea are critical variables in mitigating both daytime and nocturnal UHI. Combining daytime and nocturnal data dilutes the impact of extreme values on UHI, by up to 50%, and is not useful for design solutions. Ideally design solutions may respond to the adverse impacts recorded in peak summer clear sky daytime at the concept design stage, and then have the design manipulated and validated for other seasons. © 2006 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/149378
ISSN
2015 Impact Factor: 3.394
2015 SCImago Journal Rankings: 2.121
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorGiridharan, Ren_US
dc.contributor.authorLau, SSYen_US
dc.contributor.authorGanesan, Sen_US
dc.contributor.authorGivoni, Ben_US
dc.date.accessioned2012-06-26T05:52:44Z-
dc.date.available2012-06-26T05:52:44Z-
dc.date.issued2007en_US
dc.identifier.citationBuilding And Environment, 2007, v. 42 n. 10, p. 3669-3684en_US
dc.identifier.issn0360-1323en_US
dc.identifier.urihttp://hdl.handle.net/10722/149378-
dc.description.abstractPrevious research on Urban Heat Island Intensity (UHI) in Hong Kong was limited to 4 weeks of field measurements during the summer in 3 major coastal housing estates. The current study extends this work to 6 months enveloping 3 "seasons" and 7 different locations within the coastal area. Variations in UHI in the range -1.3 ° to 3.4 °C were recorded. The study reveals seasonal changes are in general more influential on UHI than changes due to geographical characteristics. Among the seasonal models, the peak summer clear sky day's daytime and nocturnal models examined separately were found to provide the clearest indicators of the impact of urban design variables on UHI with R2 value of 0.7 and 0.8, respectively. Sky view factor, surface albedo, altitude, vegetation above 1 m in height, average height to floor area ratio, location quotient and proximity to sea are critical variables in mitigating both daytime and nocturnal UHI. Combining daytime and nocturnal data dilutes the impact of extreme values on UHI, by up to 50%, and is not useful for design solutions. Ideally design solutions may respond to the adverse impacts recorded in peak summer clear sky daytime at the concept design stage, and then have the design manipulated and validated for other seasons. © 2006 Elsevier Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/buildenven_US
dc.relation.ispartofBuilding and Environmenten_US
dc.subjectCausal Effect Housing Estate (Residential Development)en_US
dc.subjectLater Summer Daysen_US
dc.subjectPeak Summer Clear Sky Daysen_US
dc.subjectPeak Summer Partially Cloudy Daysen_US
dc.subjectSeasonal Changesen_US
dc.subjectTerritorial Impacten_US
dc.subjectUrban Design Variablesen_US
dc.titleUrban design factors influencing heat island intensity in high-rise high-density environments of Hong Kongen_US
dc.typeArticleen_US
dc.identifier.emailLau, SSY:ssylau@hku.hken_US
dc.identifier.authorityLau, SSY=rp01006en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.buildenv.2006.09.011en_US
dc.identifier.scopuseid_2-s2.0-34249938244en_US
dc.identifier.hkuros147117-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34249938244&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume42en_US
dc.identifier.issue10en_US
dc.identifier.spage3669en_US
dc.identifier.epage3684en_US
dc.identifier.isiWOS:000248145600026-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridGiridharan, R=7801607708en_US
dc.identifier.scopusauthoridLau, SSY=24734045900en_US
dc.identifier.scopusauthoridGanesan, S=7102439694en_US
dc.identifier.scopusauthoridGivoni, B=7004481980en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats