Urban gardens as a solution to energy poverty and urban heat island

Tsilini, Vasiliki; Papantoniou, Sotiris; Κολοκότσα, Δ.; Maria, Efpraxia-Aithra

doi:10.1016/j.scs.2014.08.006

Cited by 102 publications

(58 citation statements)

References 17 publications

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“…Based on the assumptions made by the modelers, it is concluded that additional urban green areas may reduce the average ambient temperature in cities from 0.1 K to 1.0 K. In particular, in [129], it is calculated that doubling the vegetation coverage in the CBD area of Melbourne, Australia, may reduce the average summer daily maximum temperature by 0.3 K. In [130], simulations evaluating the cooling impact of additional green zones around and between buildings in Chania, Greece, shown that it is possible to reduce the maximum summer daily temperature by 0.8 K. Similar type of simulations performed in Hong Kong concluded that almost 33% of the urban area has to be covered by trees to reduce the urban temperature of 1 K [131]. Detailed simulations performed for the city of New York, USA, shown that a scenario considering just planting of open spaces could decrease the ambient temperature of 0.055 K, while when curbside planting is considered the expected temperature reduction could be close to 0.33 K [132].…”

Section: The Use Of Additional Urban Green Spacesmentioning

confidence: 99%

Regulating the damaged thermostat of the cities—Status, impacts and mitigation challenges

Santamouris

2015

Energy and Buildings

199

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Section: The Use Of Additional Urban Green Spacesmentioning

confidence: 99%

Regulating the damaged thermostat of the cities—Status, impacts and mitigation challenges

Santamouris

2015

Energy and Buildings

199

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“…Tsilini, Papantoniou, et al [134] Abreu-Harbich and Labaki [137] identified that the most predominant influence on thermal comfort was the tree structure, regardless of the utilised thermal index (i.e., PMV and PET); (ii) in a later study, Abreu-Harbich, Labaki, et al [138] again identified both the importance of tree species and the use of thermo-physiological indices such as PET for evaluating thermal comfort; beyond considering T amb , they also considers factors such as solar radiation dynamics 3.…”

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confidence: 99%

Approaches to Outdoor Thermal Comfort Thresholds through Public Space Design: A Review

et al. 2018

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Based on the Köppen Geiger (KG) classification system, this review article examines existing studies and projects that have endeavoured to address local outdoor thermal comfort thresholds through Public Space Design (PSD). The review is divided into two sequential stages, whereby (1) overall existing approaches to pedestrian thermal comfort thresholds are reviewed within both quantitative and qualitative spectrums; and (2) the different techniques and measures are reviewed and framed into four Measure Review Frameworks (MRFs), in which each type of PSD measure is presented alongside its respective local scale urban specificities/conditions and their resulting thermal attenuation outcomes. The result of this review article is the assessment of how current practices of PSD within three specific subcategories of the KG 'Temperate' group have addressed microclimatic aggravations such as elevated urban temperatures and Urban Heat Island (UHI) effects. Based upon a bottom-up approach, the interdisciplinary practice of PSD is hence approached as a means to address existing and future thermal risk factors within the urban public realm in an era of potential climate change.

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“…Studies have used different tools and techniques including in-situ measurement and monitoring (Borbora & Das, 2014;Busato et al, 2014), CFD simulaition in combination with in-situ measurement (Dimoudi et al, 2014;Georgakis et al, 2014), and artificial neural network either in combination or independent from fuzzy logic (Gobakis et al, 2011;Mihalakakou et al, 2002;Santamouris et al, 1999), simulation (Tsilini et al, 2015) as UHI mitigation measures, they can be associated with UHI effects since they aim to improve the health and well-being by offering the benefits of mitigation of UHI effects.…”

Section: Assessment Methodologies and Mitigation Strategiesmentioning

confidence: 99%

“…wind patterns, humidity changes, storms, floods, and change in local ecosystems (Lee, 1991;Mikami, 2005;Sailor & Fan, 2002) and lastly exacerbation of global warming by increased energy consumption for airconditioning and increased heat emissions released into the local environment (Kolokotroni et al, 2012). To the contrary urban gardens are known to provide a suitable solution to improve the quality of life, energy poverty, urban heat stress and biodiversity in the urban environment (Tsilini et al, 2015). Each of these effects pertaining to climate bears a secondary implication and in most cases a resonating drift on other effects directly involving the city's inhabitants.…”

Section: Causes and Effectsmentioning

confidence: 99%

Urban Heat Island (UHI) mitigating strategies: A case-based comparative analysis

O’Malley¹,

Piroozfar

Farr

et al. 2015

Sustainable Cities and Society

227

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Urbanisation may have been shown to have no effect on climate change, but some researchers suggest that cities are fully capable of responding to it. Urban Heat Islands (UHIs) represent dense urban areas within cities where the temperature is recorded to be higher than the neighbouring areas or those located in suburbia. Mitigation of UHI effects can help diminish detriments of climate change. This paper sets out to establish UHI mitigation strategies, their effectiveness and resilience to help provide recommendations for application of such strategies in future. Existing literature suggest that UK is facing with growing problem of UHI effects and sustainable development at urban scale can be improved if proportionate measures are taken to mitigate those effects. The lack of guidance for designers and planners with regards to UHI mitigation is also indicated in the literature where trees, shrubs and grass (TSG), use of high albedo materials (HAM) in external building surfaces and urban inland water bodies (UIWB) are identified as effective measures to mitigate UHI. This research identifies and tests resilience and effectiveness of UHI mitigation strategies, using ENVI-met simulations and through Urban Futures Assessment Method (UFAM).Assessed mitigation strategies (TSG, HAM, UIWB) are shown to have a similar level of resilience which could be improved if proper future-proof measures are taken in place. As a result, some practical suggestions are provided to help improve the resilience of tested UHI mitigation strategies in this study.

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Urban gardens as a solution to energy poverty and urban heat island

Cited by 102 publications

References 17 publications

Regulating the damaged thermostat of the cities—Status, impacts and mitigation challenges

Regulating the damaged thermostat of the cities—Status, impacts and mitigation challenges

Approaches to Outdoor Thermal Comfort Thresholds through Public Space Design: A Review

Urban Heat Island (UHI) mitigating strategies: A case-based comparative analysis

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