Climate change projections for sustainable and healthy cities

Goodess, C. M.; Berk, Sarah; Ratna, Satyaban B.; Brousse, Oscar; Davies, Martin; Heaviside, Clare; Moore, Gemma; Pineo, Helen

doi:10.5334/bc.111

Cited by 11 publications

(9 citation statements)

References 106 publications

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“…In fact, CWS increase the potential for improved geographical coverage of observations in cities, rather than only relying on established official meteorological stations, which are often lacking in numbers within cities and therefore in representation of urban climate features (Oke 2004, Grimmond 2006, Muller et al 2013. Densifying CWS networks not only improves our understanding of the urban climate but could further help, for example, intelligent designs of greenspace, street shading and ventilation, surface materials and buildings, and heat adaptation tools (Goodess et al 2021). For instance, the monitoring of locations at higher chances of heat stress in real-time using CWS data (Varentsov et al 2020) illustrates the range of applications offered by CWS.…”

Section: Introductionmentioning

confidence: 99%

Evidence of horizontal urban heat advection in London using six years of data from a citizen weather station network

Brousse

Simpson

Walker

et al. 2022

Environ. Res. Lett.

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Recent advances in citizen weather station (CWS) networks, with data accessible via crowd-sourcing, provide relevant climatic information to urban scientists and decision makers. In particular, CWS can provide long-term measurements of urban heat and valuable information on spatio-temporal heterogeneity related to horizontal heat advection. In this study, we make the first compilation of a quasi-climatologic dataset covering 6 years (2015–2020) of hourly near-surface air temperature measurements obtained via 1560 suitable CWS in a domain covering south-east England and Greater London. We investigated the spatio-temporal distribution of urban heat and the influences of local environments on climate, captured by CWS through the scope of Local Climate Zones (LCZ) – a land-use land-cover classification specifically designed for urban climate studies. We further calculate, for the first time, the amount of advected heat captured by CWS located in Greater London and the wider south east England region. We find that London is on average warmer by about 1.0 °C to 1.5 °C than the rest of south-east England. Characteristics of the southern coastal climate are also captured in the analysis. We find that on average, urban heat advection (UHA) contributes to 0.22±0.96 °C of the total urban heat in Greater London. Certain areas, mostly in the centre of London are deprived of urban heat through advection since heat is transferred more to downwind suburban areas. UHA can positively contribute to urban heat by up to 1.57 °C, on average and negatively by down to -1.21 °C. Our results also show an important degree of inter- and intra-LCZ variability in UHA, calling for more research in the future. Nevertheless, we already find that UHA can impact green areas and reduce their cooling benefit. Such outcomes show the added value of CWS when considering future urban design.

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Section: Introductionmentioning

confidence: 99%

Evidence of horizontal urban heat advection in London using six years of data from a citizen weather station network

Brousse

Simpson

Walker

et al. 2022

Environ. Res. Lett.

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“…Hence, the region experiences a warm to hot and wet climate with a mean temperature of 22.9 • C and mean annual rainfall of 1490 mm. The port city covers an area of 546 sq.km with a population of about 335,000 [27]. Western Kenya is a predominantly agroeconomic region, and with a growing population and high population density of 130-150 people/sq.km, the land is experiencing increasing pressure.…”

Section: Kisumu Kenyamentioning

confidence: 99%

Planning for Sustainable Cities in Africa: Experiences, Challenges and Prospects of Monitoring Geospatial Indicators

et al. 2022

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The African continent is receiving unprecedented pressure from population growth, urbanisation, decreased agricultural productivity and changing climate. However, the continent lacks technological advancement. Therefore, there is a need to apply global data and open geospatial tools for analysis to prevent, stop and comprehend the trend and effects of land degradation, food insecurity and the unsustainability of cities. The study takes three representative indicators (climate risk, land degradation and land consumption) from FAO’s four strategic better’s to demonstrate the feasibility and applicability of global datasets to support decision makers. Three representative cities in Africa are selected for the study—Houet, Burkina Faso (West Africa); Kisumu, Kenya (East Africa); and Analamanga, Madagascar (South East Africa). The study found that eight Fokontany of the Analamanga region were at high risk from climate change; at the ward level, a maximum of 54.2% of the total degraded land area in Kisumu; and maximum land-consumption rate of 1.5 was found in Houet at the department level. The results of this study can be a basis for policymakers in planning an inclusive climate-adaptation measure and sustainable land-use frameworks and policies.

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“…As population density and urbanization have reached incredible levels, extreme weather events have become more frequent, and approximately 70% of disasters are climaterelated [1,2]. Many studies in recent years have also confirmed this [3][4][5][6]. According to climate projections, a strong temperature-increase trend is expected in the next few decades, with extreme increases in daily temperatures, longer hot periods, and more intense heatwaves [5,7].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Nature-Based Solutions to Improve the Urban Microclimate in Mediterranean Climate Conditions: A Case Study of Izmir-Karsıyaka

Kaçmaz Akkurt,

Şemsiyeci

2024

Sustainability

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Today, rapid urbanization and increasing human activities have affected the climate at macro and micro scales in cities and caused unfavorable conditions in terms of human thermal comfort, especially in outdoor spaces. In this context, new solutions need to be researched, developed, tested, and updated to improve thermal comfort in cities. Using ENVI-met 5.1 software, this study investigated the effects of different NBS combinations on the urban microclimate and human bioclimatic comfort in Izmir (Turkey). The current situation, the scenarios where some nature-based solutions (NBS) are applied within the scope of the European Union’s HORIZON 2020 “URBAN GreenUP” project, and two other scenarios planned within the scope of the study were evaluated. The findings of the study showed that both the NBS scenarios created within the scope of the EU project and the NBS scenarios with large deciduous trees had the most positive impacts on improving thermal comfort conditions in all three study zones and achieved temperature reductions of up to 2.5 °C in urban temperatures. In terms of thermal comfort, the most significant differences were calculated between the minimum PMV values and were close to 1 °C. In addition, the simulation results showed positive changes in psychological stress levels.

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Climate change projections for sustainable and healthy cities

Abstract: H. (2021). Climate change projections for sustainable and healthy cities. Buildings and Cities, 2(1), pp. 812-836.

Cited by 11 publications

References 106 publications

Evidence of horizontal urban heat advection in London using six years of data from a citizen weather station network

Evidence of horizontal urban heat advection in London using six years of data from a citizen weather station network

Planning for Sustainable Cities in Africa: Experiences, Challenges and Prospects of Monitoring Geospatial Indicators

Evaluation of Nature-Based Solutions to Improve the Urban Microclimate in Mediterranean Climate Conditions: A Case Study of Izmir-Karsıyaka

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