Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10451/37041 |
Resumo: | In recent years, several studies have examined the Lisbon urban climate. A central conclusion is the existence of a nocturnal urban heat island (mean ΔTu−r = 2.5 °C). The aim of this paper is to summarise several attempts carried out in the last decade to interpolate nocturnal air temperatures across Lisbon, in order to be able to draw thermal maps as accurately as possible. This study refers only to clear nights. Stepwise multiple regression and a Geographic Information System were used to model the relation between air temperature and parameters related to land-use and topography. The different regression models (coefficients of determination between 0.68 and 0.92) show that canopy layer air temperature depends on sky-view factor, building height and percentage of built-up area, but also to a great extend on mesoclimatic geographic factors such as altitude, topography and distance from the Tagus River. Examples of four frequently encountered nocturnal air temperature patterns are presented, each corresponds to a different weather type. This method employed could prove useful in drawing climatic maps that may be of use in master plans of urban municipalities. |
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Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attemptsStepwise Multiple RegressionMaster PlanGeographic FactorCanopy LayerWeather TypeIn recent years, several studies have examined the Lisbon urban climate. A central conclusion is the existence of a nocturnal urban heat island (mean ΔTu−r = 2.5 °C). The aim of this paper is to summarise several attempts carried out in the last decade to interpolate nocturnal air temperatures across Lisbon, in order to be able to draw thermal maps as accurately as possible. This study refers only to clear nights. Stepwise multiple regression and a Geographic Information System were used to model the relation between air temperature and parameters related to land-use and topography. The different regression models (coefficients of determination between 0.68 and 0.92) show that canopy layer air temperature depends on sky-view factor, building height and percentage of built-up area, but also to a great extend on mesoclimatic geographic factors such as altitude, topography and distance from the Tagus River. Examples of four frequently encountered nocturnal air temperature patterns are presented, each corresponds to a different weather type. This method employed could prove useful in drawing climatic maps that may be of use in master plans of urban municipalities.SpringerRepositório da Universidade de LisboaAlcoforado, Maria JoaoAndrade, Henrique2019-02-18T15:40:17Z20052005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10451/37041engAlcoforado, M. J., Andrade, H. (2006). Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts. Theoretical and Applied Climatology, 84(1–3), pp. 151–159. https://doi.org/10.1007/s00704-005-0152-1.0177-798X10.1007/s00704-005-0152-1metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-14T15:25:45ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts |
title |
Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts |
spellingShingle |
Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts Alcoforado, Maria Joao Stepwise Multiple Regression Master Plan Geographic Factor Canopy Layer Weather Type |
title_short |
Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts |
title_full |
Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts |
title_fullStr |
Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts |
title_full_unstemmed |
Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts |
title_sort |
Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts |
author |
Alcoforado, Maria Joao |
author_facet |
Alcoforado, Maria Joao Andrade, Henrique |
author_role |
author |
author2 |
Andrade, Henrique |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Alcoforado, Maria Joao Andrade, Henrique |
dc.subject.por.fl_str_mv |
Stepwise Multiple Regression Master Plan Geographic Factor Canopy Layer Weather Type |
topic |
Stepwise Multiple Regression Master Plan Geographic Factor Canopy Layer Weather Type |
description |
In recent years, several studies have examined the Lisbon urban climate. A central conclusion is the existence of a nocturnal urban heat island (mean ΔTu−r = 2.5 °C). The aim of this paper is to summarise several attempts carried out in the last decade to interpolate nocturnal air temperatures across Lisbon, in order to be able to draw thermal maps as accurately as possible. This study refers only to clear nights. Stepwise multiple regression and a Geographic Information System were used to model the relation between air temperature and parameters related to land-use and topography. The different regression models (coefficients of determination between 0.68 and 0.92) show that canopy layer air temperature depends on sky-view factor, building height and percentage of built-up area, but also to a great extend on mesoclimatic geographic factors such as altitude, topography and distance from the Tagus River. Examples of four frequently encountered nocturnal air temperature patterns are presented, each corresponds to a different weather type. This method employed could prove useful in drawing climatic maps that may be of use in master plans of urban municipalities. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005 2005-01-01T00:00:00Z 2019-02-18T15:40:17Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10451/37041 |
url |
http://hdl.handle.net/10451/37041 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Alcoforado, M. J., Andrade, H. (2006). Nocturnal urban heat island in Lisbon (Portugal): main features and modelling attempts. Theoretical and Applied Climatology, 84(1–3), pp. 151–159. https://doi.org/10.1007/s00704-005-0152-1. 0177-798X 10.1007/s00704-005-0152-1 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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1777303360622297088 |