Diferenças estacionais entre variáveis microclimáticas para ambientes de interior de mata, vinhedo e posto meteorológico em Jundiaí (SP)

Hernandes, José Luiz; Pedro-Júnior, Mário José; Bardin, Ludmila

doi:10.1590/s0006-87052002000200010

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…In these studies, when compared to external environments, wind speed measurements inside forests revealed a dampening effect of 70%-85% (Cestaro 1988;Chen et al 1993;Hawke and Wedderburn 1994;Morecroft et al 1998) (as cited in Hernandes et al 2002), which is very close to the results recorded in the mangrove environment. In these studies, when compared to external environments, wind speed measurements inside forests revealed a dampening effect of 70%-85% (Cestaro 1988;Chen et al 1993;Hawke and Wedderburn 1994;Morecroft et al 1998) (as cited in Hernandes et al 2002), which is very close to the results recorded in the mangrove environment.…”

Section: Windsupporting

confidence: 79%

Mangrove Microclimate: A Case Study from Southeastern Brazil

Lima

Galvani

2013

Earth Interactions

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A mangrove is a transitional coastal ecosystem between marine and terrestrial environments that is characterized by salinity and constant tidal flooding. Mangroves contain plant communities that are adapted to several physical constraints, including the climate. The purpose of this study was to analyze the variations in climatic attributes (air temperature, relative air humidity, global solar radiation, wind, and rainfall) in the mangroves located in the municipality of Iguape, on the southern coast of the state of São Paulo, Brazil. In addition, it was determined whether the existing variation is related to the presence of the canopy environment. A microclimate tower was installed with two weather stations to obtain an analysis of the variation of the climatic attributes above and below the canopy. The results indicate that global solar radiation had an average transmissivity of 26.8%. The air temperature at 10 m was higher than that at the sensor at 2 m. The average rainfall interception for the mangrove environment was 19.6%. Both the maximum gust and average wind speed decreased by approximately 63.7% at 2 m. The mangrove canopy was found to be an important control on the variation of climatic attributes. On a microclimatic scale, the climate attributes had a direct influence on the spatial

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Section: Windsupporting

confidence: 79%

Mangrove Microclimate: A Case Study from Southeastern Brazil

Lima

Galvani

2013

Earth Interactions

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“…Para Hernandes et al (2002), as florestas exercem importante efeito atenuador sobre a temperatura máxima do ar quando comparada com ambientes abertos. Esse fenômeno está relacionado com a barreira proporcionada pelo dossel das copas das árvores que impede a penetração, no interior da floresta, da maior parte da radiação solar durante o dia.…”

Section: Resultsunclassified

Microclima De Tipologias Paisagísticas Do Parque Municipal Tingui, Curitiba, Paraná

Leal¹,

Almeida²,

Biondi³

et al. 2013

Geografar

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Os parques urbanos incluem diferentes tipologias paisagísticas e isso irá influenciar suas características microclimáticas. Este trabalho teve como objetivo caracterizar o microclima de tipologias paisagísticas do Parque Municipal Tingui, área verde localizada na região norte da cidade de Curitiba – PR. Seis tipologias paisagísticas foram definidas para análise: “Floresta”; “Árvores esparsas”; “Gramado”; “Lago”; “Rio” e “Superfícies pavimentadas, mobiliários e equipamentos de recreação”. Os resultados mostraram diferenças estatísticas significativas para as variáveis meteorológicas de temperatura e umidade relativa do ar entre as diferentes paisagens analisadas. O comportamento térmico nestas seis tipologias paisagísticas apresentou a seguinte ordem decrescente: superfícies pavimentadas, mobiliários e equipamentos de recreação; gramado; lago; rio; árvores esparsas e floresta. Enquanto que para a umidade relativa do ar a ordem foi: floresta; árvores esparsas; superfícies pavimentadas, mobiliários e equipamentos de recreação; rio; gramado e lago. As paisagens com presença de vegetação – “floresta” e “árvores esparsas” apresentaram menor temperatura e maior umidade relativa do ar do que as outras paisagens analisadas. As paisagens que compreendem a parte da Rua José Valle que corta o Parque e área de estacionamento de veículos apresentaram maior temperatura e menor umidade relativa, sendo consideradas como impactos negativos na amenização térmica do Parque na região.

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“…In this sense, the barrier provided by the canopy of the treetops prevents penetration of most of the solar radiation during the day. This lesser amount of solar radiation incidence implies in less soil heating and consequently less long-wave radiation emission and less air heating in the space between the soil and the treetops (HERNANDES et al, 2002). Thus, there was clearly a greater microclimate benefit in the sample with a higher percentage of shading offered by the treetops and a lower benefit in the lower proportion of shading.…”

Section: Discussionmentioning

confidence: 97%

The Influence of Street Trees on Urban Microclimate

Martini

Biondi

Batista

2020

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The microclimatic improvement is often cited as one of the benefits generated by urban trees, however, there are few studies which quantitatively address this effect. The aim of this paper was to compare the microclimate of streets with and without trees. Therefore, three samples containing a stretch of street with and without trees were selected, with the street with trees being composed of different species. The temperature, relative humidity and wind speed data were measured by automatic Kestrel® meteorological ministations installed on the street with trees and another in the street without trees. The data collection period was from 9 AM to 3 PM, and the monitoring interval was every 1 minute during all four seasons starting in the winter of 2011. The comparative analyses were done using the Student’s t-test (99%). The results indicated that the air temperature in a street with trees was on average 1.7 °C lower than a street without trees, the relative humidity was 6.9% higher and the wind speed was 0.04 m/s lower. There was no statistical difference for temperature between the street with “ipê” in the winter and spring. There was no difference for wind speed in the summer between the street with other trees and the street with “ipê” and “tipuana”. It was concluded that street trees provide a pleasant microclimate, and this influence was statistically significant.

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Diferenças estacionais entre variáveis microclimáticas para ambientes de interior de mata, vinhedo e posto meteorológico em Jundiaí (SP)

Cited by 5 publications

References 5 publications

Mangrove Microclimate: A Case Study from Southeastern Brazil

Mangrove Microclimate: A Case Study from Southeastern Brazil

Microclima De Tipologias Paisagísticas Do Parque Municipal Tingui, Curitiba, Paraná

The Influence of Street Trees on Urban Microclimate

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