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dc.contributor.author
Sosa, María Belén
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dc.contributor.author
Correa, Erica N.
dc.contributor.author
Zinzi, Michele
dc.date.available
2023-09-08T12:59:42Z
dc.date.issued
2019
dc.identifier.citation
Urban features at neighborhood scale to assess and mitigate the heat island in arid Mendoza, Argentina; 5th International Conference on Countermeasures to Urban Heat Islands; Hyderabad; India; 2019; 27-27
dc.identifier.uri
http://hdl.handle.net/11336/210897
dc.description.abstract
Some urban features like streets orientations and widths, blocks sizes, buildings foot prints, among others, define the layout and grid of cities. These resulting urban forms interact with the city climate. Particularly in arid zones, these interactions represent a major challenge in order to reduce the urban heat island (UHI) phenomenon. By generates appropriate designs at neighborhood scale which help to decrease the outdoor air temperatures, UHI reduction would be possible to achieve.This study assesses the thermal behavior of three low-density neighborhoods and analyzed the possibility to apply cool materials as an UHI´s mitigation strategy in the arid Metropolitan Mendoza Area, Argentina (MMA). This city has an urbanistic particular characteristic because a most of the streets are forested, regarding its arid context. As the street trees are already considered an effective UHI mitigation strategy, evaluate the outdoor thermal improved by implementing cool materials is considered an important planning policy. The selected three study cases have different layout grids (multi-azimuthal, rectangular and Cul-de-Sac) but similar features (houses typology, materials, street trees and LCZ class) that allows to contrast their thermal behavior. Also, these neighborhoods are located in different areas of the MMA around 6.5 and 4.8 km to the downtown. In order to analyze the impact of the UHI reduction by apply cool materials, four boundaries points that are coincident with the MMA urbanization limits (North, South, East and West sectors) and a point in the downtown were monitored.Their microclimates were monitored every 15 minutes with HOBO® data-loggers installed at 2 m height in a representative urban canyon inside each neighborhood, in the downtown and in the four boundaries points during the same summer period (from January 8th to February 6th 2014). With the neighborhoods microclimatic data a set of scenarios were try to test the effectiveness to apply cool materials (surfaces albedo´s roofs= 0.7, walls= 0.3 and floors= 0.5). ENVI-met software was used to simulate these scenarios. A calibration procedure was made for each neighborhood layout, by comparing the series of air temperature measurements from January 18th with the corresponding simulated values. Also, the SVF values of each urban canyon where the data-logger was installed were adjusts with those generated by the ENVI-met model. Then the three scenarios were statistically evaluated using a set of indices that describe the magnitude of the difference between the observation and prediction: R2, RMSE, RSMEs, RSMEu, MAE and MBE. After made several simulations adjustments the scenarios achieved a good statically accuracy (R2 0.91, 0.95 and 0.99). The results of the first stage of the study ?cool materials application? show that as was expected the maximum and average air temperatures decrease in all the neighborhoods but its intensity depends on the design layout (Δ maximum between 1.1 to 2.4ºC, average between 0.6 to 2.3ºC). Regarding the minimum air temperatures there is not significant reductions achieved. These findings are in concordance with researches that have been demonstrating a temperature change pattern during daytime and little or no decrease during the night.By analyzing each neighborhood behavior with the downtown and the boundaries points, second stage ?UHI reduction? significant air temperatures reductions were achieved. In the case of the downtown versus neighborhoods performance contrast significant minimum and average air temperatures reduction were found (Δ minimum between 1.2 to 3.1ºC, average between 0.8 to 1.5ºC). Also a few reductions could be achieved, by contrast the MMA´s boundaries points (Δ minimum between 0.1 to 0.8ºC, average between 0.2 to 0.9ºC).These findings highlight that suitable neighborhood layouts, that incorporates cool materials, could help to decrease the UHI phenomenon and avoid its extension to the boundaries of arid cities. This strategy is feasible to apply in the planning regulations and policies at neighborhood scale by promoting mitigation measures into new developments as well as during retrofitting and maintenance.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
International Institute of Information Technology
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
UHI MITIGATION
dc.subject
COOL MATERIALS
dc.subject
URBAN FORM
dc.subject
ARID CITY
dc.subject.classification
Otras Ingeniería del Medio Ambiente
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dc.subject.classification
Ingeniería del Medio Ambiente
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Urban features at neighborhood scale to assess and mitigate the heat island in arid Mendoza, Argentina
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/conferenceObject
dc.type
info:ar-repo/semantics/documento de conferencia
dc.date.updated
2022-12-05T16:48:07Z
dc.journal.pagination
27-27
dc.journal.pais
India
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dc.journal.ciudad
Hyderabad
dc.description.fil
Fil: Sosa, María Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Ambiente, Hábitat y Energía; Argentina
dc.description.fil
Fil: Correa, Erica N.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Ambiente, Hábitat y Energía; Argentina
dc.description.fil
Fil: Zinzi, Michele. Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo económico sostenibile; Italia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://ic2uhi2019.heatislandcountermeasures.org/
dc.conicet.rol
Autor
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dc.conicet.rol
Autor
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dc.conicet.rol
Autor
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dc.coverage
Internacional
dc.type.subtype
Conferencia
dc.description.nombreEvento
5th International Conference on Countermeasures to Urban Heat Islands
dc.date.evento
2019-12-02
dc.description.ciudadEvento
Hyderabad
dc.description.paisEvento
India
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dc.type.publicacion
Book
dc.description.institucionOrganizadora
International Institute of Information Technology
dc.source.libro
Book of abstracts of the 5th International Conference on Countermeasures to Urban Heat Islands
dc.date.eventoHasta
2019-12-04
dc.type
Conferencia
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