Abating heat waves in a coastal Mediterranean city: What can cool roofs and vegetation contribute?

The frequency and intensity of heat waves (HW) in cities are on the rise due to climate change as well as urban fabric materials and anthropogenic activities that affect heat accumulation. The efficacy of HW mitigation strategies depends on a city's specific and unique morphology, land use, bui...

Descripción completa

Detalles Bibliográficos
Autores: Gilabert, Joan, Ventura, Sergi, Segura, Ricard, Martilli, Alberto, Badia, Alba, Llasat Botija, María del Carmen, Corbera Simon, Jordi, Villalba, Gara
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/197714
Acceso en línea:https://hdl.handle.net/2445/197714
Access Level:acceso abierto
Palabra clave:Canvi climàtic
Ciutats
Altes temperatures
Climatic change
Cities and towns
High temperatures
id ES_cf88ee080d362aa537bb18f5efaebf75
oai_identifier_str oai:diposit.ub.edu:2445/197714
network_acronym_str ES
network_name_str España
repository_id_str
spelling Abating heat waves in a coastal Mediterranean city: What can cool roofs and vegetation contribute?Gilabert, JoanVentura, SergiSegura, RicardMartilli, AlbertoBadia, AlbaLlasat Botija, María del CarmenCorbera Simon, JordiVillalba, GaraCanvi climàticCiutatsAltes temperaturesClimatic changeCities and townsHigh temperaturesThe frequency and intensity of heat waves (HW) in cities are on the rise due to climate change as well as urban fabric materials and anthropogenic activities that affect heat accumulation. The efficacy of HW mitigation strategies depends on a city's specific and unique morphology, land use, building materials, climate and geography. In this study, we show the effectiveness of cool roofs and vegetation in reducing temperature in the Metropolitan Area of Barcelona (AMB). We use the Weather and Research Forecasting (WRF) model with the urban scheme BEP+BEM, including11 urban classes to simulate a HW that occurred in August 2015. We find that cool roofs reduce temperature best during the day (0.67 °C average and 2.22 °C maximum reductions), while additional green areas moderate temperatures to a lesser degree but also more evenly during the day and at night (average reductions of 0.15 °C and 0.17 °C, respectively). However, when irrigation is increased, the temperature reduction during the day is intensified due to the cooling effect of more evapotranspiration. The thermal regulation of combining the two strategies is the most evenly distributed over the AMB and has the highest impact, with an average and maximum reduction of 1.26 °C and 4.73 °C at 13:00UTC.Elsevier B.V.2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/197714Articles publicats en revistes (Física Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1016/j.uclim.2021.100863Urban Climate, 2021, vol. 37, p. 100863https://doi.org/10.1016/j.uclim.2021.100863cc-by-nc-nd (c) Gilabert, Joan et al., 2021https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1977142026-05-27T06:46:51Z
dc.title.none.fl_str_mv Abating heat waves in a coastal Mediterranean city: What can cool roofs and vegetation contribute?
title Abating heat waves in a coastal Mediterranean city: What can cool roofs and vegetation contribute?
spellingShingle Abating heat waves in a coastal Mediterranean city: What can cool roofs and vegetation contribute?
Gilabert, Joan
Canvi climàtic
Ciutats
Altes temperatures
Climatic change
Cities and towns
High temperatures
title_short Abating heat waves in a coastal Mediterranean city: What can cool roofs and vegetation contribute?
title_full Abating heat waves in a coastal Mediterranean city: What can cool roofs and vegetation contribute?
title_fullStr Abating heat waves in a coastal Mediterranean city: What can cool roofs and vegetation contribute?
title_full_unstemmed Abating heat waves in a coastal Mediterranean city: What can cool roofs and vegetation contribute?
title_sort Abating heat waves in a coastal Mediterranean city: What can cool roofs and vegetation contribute?
dc.creator.none.fl_str_mv Gilabert, Joan
Ventura, Sergi
Segura, Ricard
Martilli, Alberto
Badia, Alba
Llasat Botija, María del Carmen
Corbera Simon, Jordi
Villalba, Gara
author Gilabert, Joan
author_facet Gilabert, Joan
Ventura, Sergi
Segura, Ricard
Martilli, Alberto
Badia, Alba
Llasat Botija, María del Carmen
Corbera Simon, Jordi
Villalba, Gara
author_role author
author2 Ventura, Sergi
Segura, Ricard
Martilli, Alberto
Badia, Alba
Llasat Botija, María del Carmen
Corbera Simon, Jordi
Villalba, Gara
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Canvi climàtic
Ciutats
Altes temperatures
Climatic change
Cities and towns
High temperatures
topic Canvi climàtic
Ciutats
Altes temperatures
Climatic change
Cities and towns
High temperatures
description The frequency and intensity of heat waves (HW) in cities are on the rise due to climate change as well as urban fabric materials and anthropogenic activities that affect heat accumulation. The efficacy of HW mitigation strategies depends on a city's specific and unique morphology, land use, building materials, climate and geography. In this study, we show the effectiveness of cool roofs and vegetation in reducing temperature in the Metropolitan Area of Barcelona (AMB). We use the Weather and Research Forecasting (WRF) model with the urban scheme BEP+BEM, including11 urban classes to simulate a HW that occurred in August 2015. We find that cool roofs reduce temperature best during the day (0.67 °C average and 2.22 °C maximum reductions), while additional green areas moderate temperatures to a lesser degree but also more evenly during the day and at night (average reductions of 0.15 °C and 0.17 °C, respectively). However, when irrigation is increased, the temperature reduction during the day is intensified due to the cooling effect of more evapotranspiration. The thermal regulation of combining the two strategies is the most evenly distributed over the AMB and has the highest impact, with an average and maximum reduction of 1.26 °C and 4.73 °C at 13:00UTC.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/197714
url https://hdl.handle.net/2445/197714
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1016/j.uclim.2021.100863
Urban Climate, 2021, vol. 37, p. 100863
https://doi.org/10.1016/j.uclim.2021.100863
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Gilabert, Joan et al., 2021
https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Gilabert, Joan et al., 2021
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Articles publicats en revistes (Física Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869420091827814400
score 15,300724

Similares en LA Referencia