Sky view factor and the heat island effect in Valparaiso

Urban form transforms territory and its climatic behavior. The morphology of a city varies from its centers to its periphery, as do population density, the temporal use of buildings, the presence or absence of vegetation and transport density. These variables condition the thermal behavior of public...

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Principais autores:	Carrasco, Claudio, Palme, Massimo, Galvez, Miguel Angel
Formato:	Online
Idioma:	spa
Publicado em:	Universidad del Bío-Bío, Chile 2016
Acesso em linha:	https://revistas.ubiobio.cl/index.php/RU/article/view/2614
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id	oai:ojs.revistas.ubiobio.cl:article-2614
record_format	ojs
spelling	oai:ojs.revistas.ubiobio.cl:article-26142018-03-26T18:08:31Z Sky view factor and the heat island effect in Valparaiso Factor de cielo visible y el efecto de isla de calor en Valparaíso Carrasco, Claudio Palme, Massimo Galvez, Miguel Angel heat island climate urban morphology urban fabric urban planning Isla de Calor Morfología Urbana Clima Planificación Urbana Morfología Urbana Trama Urbana Planificación Urbana Urban form transforms territory and its climatic behavior. The morphology of a city varies from its centers to its periphery, as do population density, the temporal use of buildings, the presence or absence of vegetation and transport density. These variables condition the thermal behavior of public spaces. Sky View Factor (SVF) is defined by taking into account sky visibility from an urban canyon, which is related to the thermal storage and ventilation of street space. Both variables are key to pedestrian comfort and city warming. This paper presents climate performance data associated with the morphology of the city of Valparaíso, which has a coastal Mediterranean climate. Simultaneous climate measurements were taken in different parts of the city. These were then correlated with the geometric and material parameters of the locations studied. A close relationship was found between urban morphology, the thermal behavior of public spaces and an increased temperature favoring the urban heat island phenomenon (UHI). This data would make it possible to more accurately predict street level climate conditions and how they affect the UHI. La forma urbana transforma el territorio y su comportamiento climático. La morfología de la ciudad varía desde sus centros hasta su periferia, así como también varía en densidad poblacional, en el uso temporal de las edi caciones, en la presencia o ausencia de vegetación o en la densidad de transporte. Estas variables condicionan el comportamiento térmico del espacio público. A partir de la consideración de la visibilidad del cielo desde el cañón urbano se de ne el SVF (Sky View Factor), que está relacionado con el almacenamiento térmico y la ventilación del espacio de la calle. Ambas variables son fundamentales en el confort peatonal y en el calentamiento de la ciudad. En este trabajo se presentan desempeños climáticos asociados a la morfología de la ciudad de Valparaíso, ubicada en un clima mediterráneo costero. Se realizaron mediciones climáticas simultáneas en diversos lugares de la ciudad que se correlacionaron con parámetros geométricos y materiales de los lugares registrados. Se determina una estrecha relación entre morfología urbana, comportamiento térmico del espacio público y aumento de la temperatura favoreciendo el fenómeno de isla de calor (UHI). Estos valores permitirían predecir en forma más precisa las condiciones climáticas en el nivel de calle y la manera cómo afecta en el fenómeno urbano de isla de calor (UHI). Universidad del Bío-Bío, Chile 2016-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://revistas.ubiobio.cl/index.php/RU/article/view/2614 Urbano; V.19, N.34 (NOV 2016): ARQUISUR 2016 - HÁBITAT SUSTENTABLE; 26 - 33 Urbano; V.19, N.34 (NOV 2016): ARQUISUR 2016 - HÁBITAT SUSTENTABLE; 26 - 33 0718-3607 0717-3997 spa https://revistas.ubiobio.cl/index.php/RU/article/view/2614/2259
institution	Universidad del Bío-Bío
collection	OJS
language	spa
format	Online
author	Carrasco, Claudio Palme, Massimo Galvez, Miguel Angel
spellingShingle	Carrasco, Claudio Palme, Massimo Galvez, Miguel Angel Sky view factor and the heat island effect in Valparaiso
author_facet	Carrasco, Claudio Palme, Massimo Galvez, Miguel Angel
author_sort	Carrasco, Claudio
title	Sky view factor and the heat island effect in Valparaiso
title_short	Sky view factor and the heat island effect in Valparaiso
title_full	Sky view factor and the heat island effect in Valparaiso
title_fullStr	Sky view factor and the heat island effect in Valparaiso
title_full_unstemmed	Sky view factor and the heat island effect in Valparaiso
title_sort	sky view factor and the heat island effect in valparaiso
description	Urban form transforms territory and its climatic behavior. The morphology of a city varies from its centers to its periphery, as do population density, the temporal use of buildings, the presence or absence of vegetation and transport density. These variables condition the thermal behavior of public spaces. Sky View Factor (SVF) is defined by taking into account sky visibility from an urban canyon, which is related to the thermal storage and ventilation of street space. Both variables are key to pedestrian comfort and city warming. This paper presents climate performance data associated with the morphology of the city of Valparaíso, which has a coastal Mediterranean climate. Simultaneous climate measurements were taken in different parts of the city. These were then correlated with the geometric and material parameters of the locations studied. A close relationship was found between urban morphology, the thermal behavior of public spaces and an increased temperature favoring the urban heat island phenomenon (UHI). This data would make it possible to more accurately predict street level climate conditions and how they affect the UHI.
publisher	Universidad del Bío-Bío, Chile
publishDate	2016
url	https://revistas.ubiobio.cl/index.php/RU/article/view/2614
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Sky view factor and the heat island effect in Valparaiso

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