Evaluation of human thermal comfort near urban waterbody during summer

Xu, Jiang; Wei, Qiaoling; Huang, Xin; Zhu, Xiaoyan; Li, Guangming

doi:10.1016/j.buildenv.2009.10.025

Cited by 112 publications

(58 citation statements)

References 14 publications

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“…A large number of studies have analysed the influences of the open water bodies (whether they treat ponds, wet lands, water features or rivers) on the urban regions climate (amongst other Xu et al, 2010;.…”

Section: Cooling Effects Of Evaporation From Water Bodiesmentioning

confidence: 99%

Water Bodies an Urban Microclimate: A Review

Manteghi¹,

Limit²,

Remaz³

2015

MAS

128

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In urban areas, water bodies have a positive effect upon microclimate of the surroundings with the relative cooling impact it has on evaporative procedure. Hence, evaporative cooling might be one of the pretty efficient methods of passive cooling for urban spaces and buildings. Differences in temperature between the urban space and the non-urban space which surrounds, is dubbed UHI (Urban Heat Island) effect. Water bodies have also been proven to be influential methods of decreasing urban temperatures. A water body temperature is capable of being lower than the surrounding urban environment around 2 -6 °C. According to these findings; one may conclude that the rise of evapotranspiration in cities, that has roots in vegetation and water body, can efficiently mitigate the influence of the urban heat island. Unfortunately, the effect that water bodies can have upon urban temperatures has not been thoroughly assessed in previous studies, specifically the difference between the daytime and night time influences of water bodies, and the matter the how urban design may be in influential in moving the cooling influence from the water bodies toward the city. This paper provides a theoretical background for the problem and reviews the related literature.

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Section: Cooling Effects Of Evaporation From Water Bodiesmentioning

confidence: 99%

Water Bodies an Urban Microclimate: A Review

Manteghi¹,

Limit²,

Remaz³

2015

MAS

128

View full text Add to dashboard Cite

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“…Parks and vegetated open spaces are planted for decorative and aesthetics purposes according to predetermined objectives based on cultural beliefs and practices. Therefore, the design of urban nature is highly dependent on human activities and decisions [15] and the design of urban landscapes require bioclimatic elements. Numerous researchers, such as [21], [25], [26], define the bioclimatic approach as the radical and comprehensive employment of natural vegetation, greenery, water bodies, and landscape design that are suited to climatic variability in urban areas.…”

Section: Natural Sourcesmentioning

confidence: 99%

“…However, it is a complicated process to manipulate the ecosystems in urban areas. The environment and ecological systems are drastically altered to accommodate the construction of cities [13], [15]. The responsibility of designing a climate-sensitive city is delegated to the developer, who has to strive to employ environmentally friendly designs with bioclimatic characteristics that are not damaging towards outdoor conditions.…”

Section: Introductionmentioning

confidence: 99%

“…There is a certain norm and consistency in the arrangement and construction of buildings, for example, buildings downtown are usually built with greater height; lower residential densities are integrated with parks, green strips along streets, gardens, courtyards, and urban agriculture. In this current age, the services produced by urban ecosystems are directly linked to human activities [15].…”

Section: Natural Sourcesmentioning

confidence: 99%

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Developing a Sustainable City in a Tropical Area to Create a Balance between Vegetation and Water Bodies

Mirrahimi¹,

Ibrahim²,

Surat³

2015

IJET

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Abstract-This paper aims to investigate the effects of using natural resources that incorporates the basis of a sustainable city design in efforts to improve the urban thermal comfort in a hot and humid climate. Currently, one of the most crucial world environmental issues is urbanization in a hot and humid climate. In tropical areas, if the urban landscape is poorly designed, it will cause outdoor thermal discomfort. Natural plants and water bodies in the hot and humid landscape has a direct influence over the temperature of urban cities. Water bodies, for example, are able to lower the atmospheric temperature; whereas plants also can affect the surroundings passively. The effects of wet surfaces are increased if there is a presence of a shadow. Therefore, vegetation and water bodies are used in designing a sustainable city in order to increase the quality of outdoor thermal comfort in a hot and humid climate. This is hoped to provide a better and more comfortable human living environment.

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“…Nishimura et al [27] reported that the artificial water facilities, including a shallow pond, a small waterfall, and a spray fountain created an air temperature decline area on the leeward side. Another field measurement performed by Xu et al [28] showed that the urban lake significantly reduced air temperature and increased humidity in the littoral zone, and such effects were gradually decreased as the distance from water increases. The investigation conducted by Tominaga et al [29] showed that the evaporative cooling effect induced by the water surface lowered the temperature by approximately 2˝C at the pedestrian level and propagated downwind over an unobstructed distance of 100 m. Nevertheless, based on weather observations by Dutch hobby meteorologists and a station network in Rotterdam (The Netherlands), Steeneveld et al concluded that water bodies increased rather than decreased the daily maximum UHI.…”

Section: Introductionmentioning

confidence: 98%

Diurnal Thermal Behavior of Pavements, Vegetation, and Water Pond in a Hot-Humid City

Yang

Zhao

2015

Buildings

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This study investigated the diurnal thermal behavior of several urban surfaces and landscape components, including pavements, vegetation, and a water pond. The field experiment was conducted in a university campus of Guangzhou, South China, which is characterized by a hot and humid summer. The temperature of ground surface and grass leaves and the air temperature and humidity from 0.1 to 1.5 m heights were measured for a period of 24 h under hot summer conditions. The results showed that the concrete and granite slab pavements elevated the temperature of the air above them throughout the day. In contrast, the trees and the pond lowered the air temperature near ground during the daytime but produced a slight warming effect during the nighttime. The influence of vegetation on air temperature and humidity is affected by the configurations of greenery. Compared to the open lawn, the grass shaded by trees was more effective in cooling and the mixture of shrub and grass created a stronger cooling effect during the nighttime. The knowledge of thermal behavior of various urban surfaces and landscape components is an important tool for planners and designers. If utilized properly, it can lead to climatic rehabilitation in urban areas and an improvement of the outdoor thermal environment.

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Evaluation of human thermal comfort near urban waterbody during summer

Cited by 112 publications

References 14 publications

Water Bodies an Urban Microclimate: A Review

Water Bodies an Urban Microclimate: A Review

Developing a Sustainable City in a Tropical Area to Create a Balance between Vegetation and Water Bodies

Diurnal Thermal Behavior of Pavements, Vegetation, and Water Pond in a Hot-Humid City

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