How 2D and 3D built environments impact urban surface temperature under extreme heat: A study in Chengdu, China

Building and Environment, Journal Year: 2023, Volume and Issue: 231, P. 110035 - 110035

Published: Jan. 23, 2023

Language: Английский

---

Quantifying the nonlinear relationship between block morphology and the surrounding thermal environment using random forest method

Sustainable Cities and Society, Journal Year: 2023, Volume and Issue: 91, P. 104443 - 104443

Published: Feb. 1, 2023

Language: Английский

---

Determination of land surface temperature and urban heat island effects with remote sensing capabilities: the case of Kayseri, Türkiye

Natural Hazards, Journal Year: 2024, Volume and Issue: 120(6), P. 5509 - 5536

Published: Feb. 15, 2024

Abstract Kayseri, a densely urbanized province in Türkiye, grapples with pressing challenges of air pollution and limited green spaces, accentuating the need for strategic urban planning. This study, utilizing Landsat 8 9 satellite imagery, investigates evolution land surface temperatures (LST) heat island (UHI) effects key districts—Kocasinan, Melikgazi, Talas, Hacılar—between 2013 2022. research has been complemented an analysis Normalized Difference Vegetation Index (NDVI) Built-Up (NDBI), exploring correlations among LST, UHI, NDVI, NDBI changes. The findings indicate that significant portion (65% 88%) study area remained unchanged respect to NDVI differences. research’s reveal substantial exhibited consistency NDBI. Noteworthy increases were observed 20% region, while only 4% higher Strikingly, UHI displayed strong negative robust positive LST changes demonstrated reduced temperature range, from 21 51 °C 2013, 18 40 Localized environmental factors, notably at National Garden site, showcased most variations. Notably, study’s results emphasize interplay NDBI, inverse relationship UHI. These hold implications planning policymaking, particularly context resilient sustainable use mitigation. underscores intricate highlighting NDVI. crucial planning, mitigating effects. Despite vacant spaces geospatial techniques identifying potential can facilitate swift mitigation measures. Acknowledging Kayseri’s complex dynamics, future should delve into responses morphology design, extending this methodology analyze other Turkish cities. contributes broader understanding dynamics practices, offering valuable insights policymakers, planners, researchers alike.

Language: Английский

---

Mitigating urban heat island through neighboring rural land cover

Nature Cities, Journal Year: 2024, Volume and Issue: 1(8), P. 522 - 532

Published: July 5, 2024

Abstract Globally, the deteriorating Urban Heat Island (UHI) effect poses a significant threat to human health and undermines ecosystem stability. UHI mitigation strategies have been investigated utilized extensively within cities by provision of green, blue or gray infrastructures. However, urban land is precious limited for these interventions, making it challenging address this issue. Neighboring rural cover may serve as cooling source great potential mitigate through processes such heat absorption circulation. This study aims following questions: (1) what location neighboring effectively entire city (2) are key parameters landscape. We quantitative qualitative relationships between UHI, drawing on geographical environmental data from 30 Chinese 2000 2020. found that extending outward boundary, approximately half equivalent diameter city, had most pronounced impact mitigation. The number adjacency landscape patches (a patch homogeneous nonlinear basic unit pattern, distinct its surroundings) emerged two factors in mitigating with their individual reduce up 0.5 °C. proposed recommendations were avoid fragmentation enhance shape complexity distribution uniformity patches. work opens new avenues addressing high-temperature catastrophes perspective, which also promote coordinated development areas.

Language: Английский

---

Day and night: Impact of 2D/3D urban features on land surface temperature and their spatiotemporal non-stationary relationships in urban building spaces

Sustainable Cities and Society, Journal Year: 2024, Volume and Issue: 108, P. 105507 - 105507

Published: May 6, 2024

Language: Английский

---

Simulating influences of land use/land cover composition and configuration on urban heat island using machine learning

Sustainable Cities and Society, Journal Year: 2024, Volume and Issue: 108, P. 105482 - 105482

Published: April 28, 2024

Language: Английский

---

XGBoost-Based Analysis of the Relationship Between Urban 2-D/3-D Morphology and Seasonal Gradient Land Surface Temperature

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Journal Year: 2024, Volume and Issue: 17, P. 4109 - 4124

Published: Jan. 1, 2024

The escalation of greenhouse gas emissions has led to a continuous rise in land surface temperature (LST). Studies have highlighted the substantial influence urban morphology on LST; however, impact different dimensional indicators and their gradient effects remain unexplored. Selecting area Shenyang as case, we chose various representing dimensions. By employing XGBoost for regression analysis, aimed explore 2D 3D seasonal LST its effect. following results were obtained: (1) spatial pattern spring winter was higher suburbs than center. (2) correlation patterns similar, except proportion woodland grass (PWG), digital elevation model (DEM), sky view factor (SVF), which exhibited opposing trends summer autumn. (3) Vegetation construction had highest index, followed by building forms natural landscapes morphology. (4) each indicator varied significantly across gradients. Among all indicators, landscape social development, forms, skyscape impacts areas. built-up areas greater suburban findings this study can assist adjusting provide valuable recommendations targeted improvements thermal environments, thereby contributing sustainable development.

Language: Английский

---

A comprehensive review of outdoor thermal comfort in urban areas: Effective parameters and approaches

Energy & Environment, Journal Year: 2022, Volume and Issue: 34(6), P. 2204 - 2227

Published: Aug. 2, 2022

Increased urban air temperature considerably affects the health, comfort and consequently quality of life in spaces. Urban design planning studies, therefore, face an increasing challenge as they aim to improve Outdoor Thermal Comfort (OTC) microclimate conditions environments. Analysing OTC is more challenging when compared indoor thermal since a wider range interrelated parameters exists outdoor Therefore, this research aims classify studies that investigate by conducting comprehensive review based on key metrics such approaches taken, methodologies spatial temporal scales. By extracting findings, forms integrated framework these presents thorough view concept context climate-sensitive studies. Furthermore, elaborates main two groups affecting including environmental human-based parameters. Exploring intricate inter-relationships clarifies their contribution OTC. Results study help architects planners strategies support decision-making process providing perspective about different aspects Finally, recommendations for future are outlined.

Language: Английский

---

Effects of Urban Form on Carbon Emissions in China: Implications for Low-Carbon Urban Planning

Land, Journal Year: 2022, Volume and Issue: 11(8), P. 1343 - 1343

Published: Aug. 18, 2022

Carbon emissions are closely related to global warming. More than 70% of carbon have been generated in cities. Many studies analyzed the effects cities on emissions, from perspective urbanization, economics, and land use, yet a detailed understanding relationship between urban form is lacking due absence reasonable set metrics. The aim this research explore through empirical research. By eliminating collinearity, we established landscape metrics comprising Class Area (CA), Mean Perimeter–Area Ratio (PARA-MN), Proximity Index (PROX-MN), Euclidian Nearest Neighbor Distance (ENN-MN) representing area, complexity, compactness, centrality, respectively. Through spatial autocorrelation analysis, results show that there positive emissions. high–high agglomeration regions located Beijing–Tianjin–Hebei Yangtze River Delta, while low–low concentrated Southwest Heilongjiang Province. Based error model, for whole study CA, PARA-MN, ENN-MN correlation with but PROX-MN opposite. ordinary least squares, PARA-MN Northeast East, North Mid-South, significantly correlated These findings helpful low-carbon planning.

Language: Английский

---

Are New Towns Prone to Urban Heat Island Effect? Implications for Planning Form and Function

Sustainable Cities and Society, Journal Year: 2023, Volume and Issue: 99, P. 104939 - 104939

Published: Sept. 15, 2023

Language: Английский

---