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Indoor particle number concentration measurements across different income group households in urban region Urban Clim. (IF 6.0) Pub Date : 2025-02-07 Monika Sharma, Mukesh Khare, Rajeev Kumar Mishra
Indoor air quality in urban regions is a serious concern. This study estimated the seasonal variations of indoor and outdoor particle number concentrations in different socioeconomic household conditions in the urban city Delhi. The portable aerosol spectrometer was employed to measure quasi-ultrafine, sub-fine, fine, and coarse particle concentration in kitchen, bedroom, and outdoor conditions. The
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Temperature-related mortality and future health risks from climate change in a middle eastern Metropolis Urban Clim. (IF 6.0) Pub Date : 2025-02-04 Peran Riahi, Babak Khorsandi
This study investigates the effect of past and future temperatures on five distinct causes of mortality, including non-accidental causes, as well as diseases related to the cardiovascular, respiratory, nervous systems, and diabetes in Tehran, Iran.
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Investigating wet-bulb globe temperature on heat-related illness in general population for alerting heat exposure: A time-stratified case-crossover study Urban Clim. (IF 6.0) Pub Date : 2025-02-03 Yi-Chun Lin, Chau-Ren Jung, Bing-Fang Hwang, Chen-Peng Chen
Assessing the effects of heat stress on heat-related illnesses and developing a heat alter system accordingly is an adaptive strategy to address global warming. The wet-bulb globe temperature (WBGT) effectively quantifies the heat stress on the human body, providing a more comprehensive measure than ambient temperature. However, few studies have assessed the association between WBGT and heat-related
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The interactions of carbon emission driving forces: Analysis based on interpretable machine learning Urban Clim. (IF 6.0) Pub Date : 2025-02-01 Zhaoyingzi Dong, Jiayan Shi, Sheng Pan
Climate change caused by carbon emissions is a major threat to humanity. Understanding the drivers of carbon emissions has drawn much attention, but many studies overlook how these drivers interact. This study uses interpretable machine learning to explore the complex relationships between carbon emission intensity and its factors based on city-level data from China between 2002 and 2017. The findings
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Maternal climate-related exposures and prolonged pregnancy: Findings from a statewide population-based cohort study in Western Australia Urban Clim. (IF 6.0) Pub Date : 2025-01-31 Sylvester Dodzi Nyadanu, Gizachew A. Tessema, Jennifer Dunne, Aditi Roy, Gavin Pereira
Unlike other pregnancy outcomes, climate-related exposures, and prolonged pregnancy (PP) (≥ 41 gestational weeks) have not been investigated. Space-time varying fine particulate matter air pollution (PM2.5) and the Universal Thermal Climate Index (UTCI) from three months of preconception through pregnancy were linked to 393,384 singleton births at ≥37 gestational weeks, including 12 % PP between 1st
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Effects of bus station density on urban air pollution: An empirical analysis based on propensity score matching Urban Clim. (IF 6.0) Pub Date : 2025-01-31 Xiatong Hao, Xiaojian Hu, Ke Zhang, Liang Wang, Chunwen Wang
Previous studies on optimizing bus station layouts have primarily focused on objectives such as increasing accessibility and convenience, but overlooking the effects on urban air quality, especially the accumulation effect of multiple bus stations and the mutual influence between adjacent ones. This study contributes to both the literature and practical urban planning by investigating the effects of
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Urban forests mitigate extreme heat exposure in a vulnerable tropical city Urban Clim. (IF 6.0) Pub Date : 2025-01-31 Diana Lucia Giraldo-Charria, Francisco J. Escobedo, Nicola Clerici, Benjamin Quesada
Urban forests (UF) have been documented as a strategy for mitigating urban heat in population centers of the Global North that are affected by extreme temperatures. However, few have studied this ecosystem service in such climate-vulnerable, humid, tropical cities with less than 50,000 inhabitants, limited resources, and weak adaptive capacity to heatwaves. Accordingly, we studied the tropical city
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Spatial decision-making for urban flood vulnerability: A geomatics approach applied to Al-Ain City, UAE Urban Clim. (IF 6.0) Pub Date : 2025-01-31 Mona S. Ramadan, Ahmed Hassan Almurshidi, Siti Fatin Mohd Razali, Elnazir Ramadan, Aqil Tariq, Robert M. Bridi, Md Atiqur Rahman, Shamma Albedwawi, Meera Alshamsi, Mariam Alshamisi, Salma Alrashdi, Shamma Alnaqbi, Hind Alhammadi, Naeema Al Hosani
Urban flash floods present significant challenges, especially in arid regions like Al-Ain City, UAE, where rapid urbanization and climatic extremes exacerbate vulnerabilities. This study addresses the critical need for an accurate flood vulnerability assessment by integrating Geographic Information Systems (GIS), Remote Sensing (RS), the Analytical Hierarchy Process (AHP), and Multi-Criteria Decision
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Investigating 2D/3D factors influencing surface urban heat islands in mountainous cities using explainable machine learning Urban Clim. (IF 6.0) Pub Date : 2025-01-30 Zihao An, Yujia Ming, Yong Liu, Guangyu Zhang
Surface urban heat islands (SUHI) pose significant risks to human health and urban sustainability. While the impact of urban features on SUHI has been widely studied, research on the influence of 2D and 3D indicators in mountainous cities remains limited. This study introduces a set of 2D/3D indicators and explores their effects on SUHI in Chongqing, a mountainous city, using explainable machine learning
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Leveraging machine learning to explore nonlinear associations between urban heat vulnerability and morbidity risk Urban Clim. (IF 6.0) Pub Date : 2025-01-30 Jiaming Yang, Zhaomin Tong, Jiwei Xu, Rui An, Yanfang Liu, Yaolin Liu
Urban heat vulnerability (UHV) caused by anthropogenic activities and climate changes has given rise to heat health issues in urban areas worldwide. Previous studies have extensively revealed a simple linear relationship between heat vulnerability indices (HVIs) and morbidity or mortality of heat-related illnesses, but the nonlinear relationship and interactions between main HVIs have not yet been
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Examining water bodies' cooling effect in urban parks with buffer analysis and random forest regression Urban Clim. (IF 6.0) Pub Date : 2025-01-30 Yu Qiao, Hao Sun, Jialing Qi, Shaobo Liu, Jiang Li, Yifeng Ji, Hao Wang, You Peng
As urban thermal environments continue to deteriorate, the capacity of urban parks to mitigate the Urban Heat Island (UHI) effect has gained increasing attention, particularly the role of water bodies within these parks. However, the relationship between water body characteristics and cooling effect of urban park remains underexplored. This study utilizes Landsat 8 OLI_TIRS imagery from 28 urban parks
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Projecting temperature-related excess mortality under climate change in six metropolitan cities in China Urban Clim. (IF 6.0) Pub Date : 2025-01-30 Ying Zhang, Jinyuan Xin, Wendong Hu, Meng Xiu, Shigong Wang
Climate change poses unprecedented challenges and threats to human health. Currently, research on the predicted health risks of different diseases caused by climate change is insufficient, especially in developing countries. We present a projection of temperature-related excess mortality associated with nonaccidental causes, cardiovascular, and respiratory disease in six Chinese cities (Harbin, Shenyang
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Time series trend detection and forecasting of SUHI in Tabriz, Iran Urban Clim. (IF 6.0) Pub Date : 2025-01-29 Mohammad Ali Koushesh Vatan, Mohammad Nemati, Aliihsan Sekertekin, Mobin Zehtabi Aslkhiabani
This study aims to evaluate the seasonal daytime and nighttime SUHI trend of Tabriz, using the non-parametric Mann-Kendall, Innovative Trend Analysis, and MODIS data, and to forecast the SUHI trend by 2030 using SARIMA and NNAR. Considering the SUHI analysis, daily MODIS images were processed in the Google earth engine platform. Based on mean SUHI values, the analysis showed that Tabriz has insignificant
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Diurnal and seasonal variation of surface heat island of local climate zones using FengYun-4A land surface temperature data Urban Clim. (IF 6.0) Pub Date : 2025-01-29 Longteng Fu, Xian-Xiang Li, Rui Xin, Min Min, Lixin Dong
Understanding the diurnal dynamics of the surface urban heat island (SUHI) effect in various local climate zones (LCZs) is essential for urban climate studies and planning. However, due to the limitations in spatial and temporal resolution of satellite data, current research on the continuous diurnal dynamics of LCZs at the scale of urban agglomerations remains relatively limited. This study leverages
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Determining the key meteorological factors affecting atmospheric CO2 and CH4 using machine learning algorithms at a suburban site in China Urban Clim. (IF 6.0) Pub Date : 2025-01-29 Wanyu Liu, Zhenchuan Niu, Xue Feng, Weijian Zhou, Dan Liang, Guowei Wang, Lin Liu
Atmospheric CO2 and CH4 were measured from March 2023 to February 2024 at a suburban site near the northern foot of the Qinling Mountains, China, aiming to determine the key meteorological factors that influencing the seasonal CO2 and CH4 dynamics using machine learning (ML) algorithms. Yearly average atmospheric CO2 and CH4 were 446.1 ± 10.0 ppm and 2118.9 ± 50.5 ppb, respectively. Anthropogenic emissions
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Comparative assessments for the carbon emissions and costs of road maintenance strategies in life cycle Urban Clim. (IF 6.0) Pub Date : 2025-01-29 Chao Huang, Fusong Wang, Xiaoqing Li, Wangwang Zhou, Derun Zhang
Assessing the sustainability of urban road maintenance strategies are increasing concerned currently, but most of studies ignored the extra impacts by traffic delaying around the maintenance site as establishing research boundary, hindering the reference values and practicality of quantitative results. The study conducted the comparative analysis on the maintenance strategies of fog sealing, micro-surfacing
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Interaction between meteorological factors and air pollutants on the cerebrovascular diseases admissions in Lanzhou City: A time-series study Urban Clim. (IF 6.0) Pub Date : 2025-01-29 Xusong Zhang, Qian Li, Yongqin Cao, Ke Xu, Jingze Yu, Miaoxin Liu, Rentong Chen, Tian Tian, Jiyuan Dong, Ye Ruan
To explore the exposure-lag-response relationships and the interaction effects of meteorological and air pollutants on cerebrovascular disease admissions (CDA), this study used a distributed lag nonlinear model of time series. Univariate analysis showed a “U” shaped between relative humidity (RH) and CDA, daily mean temperature (DMT) and CDA showed fluctuating variations. Except O3, the relative risk
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Two-stage super-resolution simulation method of three-dimensional street-scale atmospheric flows for real-time urban micrometeorology prediction Urban Clim. (IF 6.0) Pub Date : 2025-01-29 Yuki Yasuda, Ryo Onishi
A two-stage super-resolution simulation method is proposed for street-scale air temperature and wind velocity, which considerably reduces computation time while maintaining accuracy. The first stage employs a convolutional neural network (CNN) to correct large-scale flows above buildings in the input low-resolution simulation results. The second stage uses another CNN to reconstruct small-scale flows
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Imputation approaches for missing data in non-reference sites in short-term air quality studies: Case study from NYC community air survey Urban Clim. (IF 6.0) Pub Date : 2025-01-29 Ali Sheidaei, Kimiya Gohari, Homero Harari, Maayan Yitshak-sade, Ilias Kavouras, Rosalind J. Wright, Robert Wright, Itai Kloog
Short-term monitoring campaigns are commonly used for assessing intra-urban air pollution (AP), capturing spatial variations at non-reference sites while measuring temporal variations at reference sites. This study aims to predict continuous AP data at non-reference sites, aligning their temporal patterns with those of reference sites. Using data from the New York City Community Air Survey (NYCCAS)
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Synoptic patterns and heatwaves: Intensifying urban heat islands in the Mexico Basin Urban Clim. (IF 6.0) Pub Date : 2025-01-28 Lourdes P. Aquino-Martínez, Beatriz Ortega-Guerrero, Arturo I. Quintanar, Yanet Díaz-Esteban
Modifying urban heat islands (UHI) by weather patterns in complex terrain remains to be seen. UHI and heatwaves (HW) contribute to extreme heat events that can severely impact human health. Studying the interaction between these phenomena, especially concerning synoptic patterns, is crucial for advancing our understanding of urban climate change and its effects. This research is focused on studying
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Revolutionizing air quality forecasting: Fusion of state-of-the-art deep learning models for precise classification Urban Clim. (IF 6.0) Pub Date : 2025-01-28 Umesh Kumar Lilhore, Sarita Simaiya, Surjeet Dalal, Neetu Faujdar
Effective management of air quality is crucial for protecting public health and enhancing environmental resilience. As urban areas and industries rapidly expand, there is a growing need for accurate systems to monitor and predict air quality. In this way, individuals can take prompt action to reduce health risks. This research introduces a novel approach for categorizing air quality using advanced
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Unveiling seasonal disparities in urban form: Exploring scale and intensity effects on PM2.5 concentrations Urban Clim. (IF 6.0) Pub Date : 2025-01-27 Xiaodong Liu, Wenkun Wu, Huilong Zou, Chen Pan, Minnan Liu, Haibo Li
Understanding the complex link between urban layout and PM2.5 levels is crucial for advancing sustainable urban development. However, the seasonal variations in how urban form affects PM2.5 levels are still underexplored. This study investigates these seasonal variations using a multi-scale geographically weighted regression (MGWR) model with data from 284 cities in China. The key findings are: (1)
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Assessing urban surface thermal environment and heat health risk in Chinese cities: A twenty-year study Urban Clim. (IF 6.0) Pub Date : 2025-01-27 Chunxiao Zhang, Yang Yang, Le Yu
With global warming and rapid urbanization, urban surface temperatures have risen significantly, challenging residents' health and urban sustainability. Prolonged or frequent high temperature exposure can cause various health issues, making the study of heat-related risks crucial. However, data accessibility issues and other factors limit the temporal and spatial scales of studies. This insufficiently
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Influence of historical city walls on the water cooling effects in summer Urban Clim. (IF 6.0) Pub Date : 2025-01-25 Dan Song, Shengnan Niu, Lufang Chen, Annan Wang, Xing Shi, Xin Zhou, Liu Yang, Xing Jin
Historical city walls, as symbols of historical and cultural heritage, have been extensively studied. While many city walls have survived modern urban development, their potential adverse effects on the surrounding microclimate remain underexplored. This study addressed this gap by examining the influence of historical city walls on the cooling effect of nearby water bodies (WCE), offering new insights
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Thermal hazards in urban spaces: A review of climate-resilient planning and design to reduce the heat stress Urban Clim. (IF 6.0) Pub Date : 2025-01-25 Aman Gupta, Bhaskar De, Sutapa Das, Mahua Mukherjee
Thermal hazards are a growing concern for cities through the urban heat island (UHI) effect, leading to increased mortality rates, greater energy consumption, and distressing social equity. Cities are compelled to re-evaluate climate-resilient planning to diminish heat-health risks. This review provides an overview of potential research directions after identifying the matters and constraints lacking
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Modeling of urban lake breeze circulation: Implications for the mitigation of urban overheating Urban Clim. (IF 6.0) Pub Date : 2025-01-25 Qilong Zhong, Jiyun Song, Xiaoxue Wang, Huanhuan Wang, Dachuan Shi, Yuguo Li
The urban overheating phenomenon, induced by both global warming and the urban heat island (UHI) effect, has been exacerbated by worsened urban wind environments. Urban lakes may aid in mitigating urban overheating through the process of lake breeze circulation (LBC). In this study, we developed a multi-scale water-energy coupled CFD model to simulate the transport of heat and moisture between lake
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Urban comfort dynamics in major megacities in the Middle East: A spatiotemporal assessment and linkage to weather types Urban Clim. (IF 6.0) Pub Date : 2025-01-24 Ahmed M. El Kenawy, Mohamed M. Abdelaal, Hassan Aboelkhair, Emad K. Mohamed
This study provides the first comprehensive assessment of the dynamics of urban comfort in the five largest megacities in the Middle East. The region's sparse and uneven meteorological station network has created a critical gap in urban climate research that addresses local urban spatial variability. Based on remote sensing data, we assessed changes in urban comfort for Cairo, Istanbul, Riyadh, Tehran
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Anomalous temperatures increase occupational injuries, illnesses and associated cost burden in Australia Urban Clim. (IF 6.0) Pub Date : 2025-01-24 Matthew A. Borg, Jianjun Xiang, Olga Anikeeva, Bertram Ostendorf, Blesson Varghese, Keith Dear, Dino Pisaniello, Alana Hansen, Kerstin Zander, Malcolm R. Sim, Peng Bi
Anomalous ambient temperatures elevate the risk of occupational injuries and illnesses (OIIs). However, the associated economic burden is underexplored internationally. This study establishes an Australian profile of heat- and cold-attributable OIIs and their costs. OIIs and costs from seven Australian capital cities in July 2005 to June 2018 were modelled against daily maximum wet bulb globe temperature
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Impact of urban land use and anthropogenic heat on winter and summer outdoor thermal comfort in Beijing Urban Clim. (IF 6.0) Pub Date : 2025-01-24 Jiangkang Qian, Linlin Zhang, Uwe Schlink, Xinli Hu, Qingyan Meng, Jianfeng Gao
It is important to clarify the role of urbanization on outdoor thermal comfort (OTC) in regions threatened by both heat and cold. Quantitative studies on the impact of urbanization factors, including urban land use (LU) and anthropogenic heat (AH), on the winter thermal environment are lacking. This study conducted climate simulations using the Weather Research and Forecasting (WRF) model and optimized
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Optical properties of carbonaceous aerosols and source impacts in the Lanzhou valley: In-situ observations by means of topographical relief Urban Clim. (IF 6.0) Pub Date : 2025-01-24 Shaofeng Qi, Suping Zhao, Ye Yu, Shichang Kang
This study conducted a one-year observation of the optical properties of carbonaceous aerosols at three observation sites (urban areas, Mountains Gaolan and Maxian) in the Lanzhou River Valley, based on the principle of increasing altitude. The light absorption coefficients of elemental carbon (EC) and brown carbon (BrC) were the highest at the mountainside of Gaolan Mountain, followed by the urban
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Integrating seasonal climate variability and spatial accessibility in ecosystem service value assessment for optimized NbS allocation Urban Clim. (IF 6.0) Pub Date : 2025-01-23 Yoonshin Kwak, Si Chen
Nature-based Solutions (NbS) efficiently manage ecosystem services (ESs) to address socio-environmental challenges. Strategic NbS planning must consider ecological and social benefits, especially in urban areas with limited resources. However, systemic planning approaches remain lacking in terms of urban climate variability. This study proposes a novel method to optimize ES benefits from NbS allocation
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Impact of urbanisation on groundwater vulnerability in shallow aquifer system of Assam: A DRASTIC approach Urban Clim. (IF 6.0) Pub Date : 2025-01-22 Dhritilekha Deka, K. Ravi, Archana M. Nair
Groundwater vulnerability assessment is crucial due to the inherent susceptibility of groundwater to contamination. Therefore, this study evaluates the effect of intrinsic and specific factors on groundwater vulnerability in Assam, India. The intrinsic groundwater DRASTIC vulnerability (GDV index) is evaluated using seven hydrogeological parameters. The specific vulnerability evaluated as contamination
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Evaluation of ecological risk due to suspended particulate matter-bound heavy metals deposited on selected plants in an urban area Urban Clim. (IF 6.0) Pub Date : 2025-01-22 Durga Prasad Tripathi, Arvind Kumar Nema
Heavy metal concentrations bound to suspended particulate matter (SPM) originating from industrial processes, vehicular emissions, road dust, and solid waste incineration pose serious ecological risks. Their persistent deposition on vegetation disrupts the ecological balance and endangers environmental health through long-term accumulation in sensitive ecosystems. This study investigated the ecological
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Impacts of future urbanization scenarios on precipitation patterns over the metropolitan area of São Paulo (MASP): Insights from numerical simulation Urban Clim. (IF 6.0) Pub Date : 2025-01-22 Mariana Fadigatti Picolo, Edmilson Dias de Freitas, Carolyne Bueno Machado
Several studies have shown that the urbanization process has an impact on precipitation pattern, especially leading to an enhancement. Urban centers are expected to expand following the prospects of urban population increase. Understanding the possible impacts of future urbanization on precipitation becomes essential to aid in the development of mitigation plans and to reduce population vulnerability
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The correlation between water‑carbon and urban spatial form in built-up areas: Evidence from Shenzhen City, China Urban Clim. (IF 6.0) Pub Date : 2025-01-21 Gaoyuan Wang, Muhan Li, Yangli Li, Tian Chen, Chye Kiang Heng
The synergy between water and carbon management is essential for the sustainable development of urban areas. However, the spatial dynamics of water consumption and carbon emissions within built environments remain underexplored, especially in terms of their correlation. This study aims to fill this gap by investigating the spatial relationship between water usage and carbon emissions in Shenzhen, China
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Phthalate esters in urban multi-media in the arid city of Urumqi, Northwest China: Sources, bio-accessibility and health risks Urban Clim. (IF 6.0) Pub Date : 2025-01-20 Hui Dong, Lijun Wang, Tong Zhang, Wendong Tao
Phthalate esters (PAEs) are widely detected in the environment, posing potential threats for human health. In this study, 23 PAEs were determined in 68 paired urban soil and surface dust samples and four dustfall samples collected from the arid city of Urumqi in China for their sources and health risks. The results showed that the total concentration of 23 PAEs in urban soil, surface dust and dustfall
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"It is getting too hot lately": Urban households' knowledge, experiences and governance of extreme heat events in Accra, Ghana Urban Clim. (IF 6.0) Pub Date : 2025-01-17 Yaw Agyeman Boafo, Ebenezer Forkuo Amankwaa, Catalina Spataru, Priscila Carvalho
As climate change accelerates, extreme heat events have become one of the most pervasive and dangerous threats to urban populations worldwide, disproportionately affecting vulnerable communities. This study investigates household awareness, experiences, and governance responses to extreme heat in the Greater Accra Metropolitan Area, Ghana. A mixed-methods approach, involving household surveys (n = 413)
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Urban stormwater resilience: Global insights and strategies for climate adaptation Urban Clim. (IF 6.0) Pub Date : 2025-01-16 Mohammad Fereshtehpour, Mohammad Reza Najafi
Rapid urbanization combined with increasing extreme precipitation driven by climate change poses significant challenges to urban infrastructure. This study analyzes stormwater management practices across 11 cities in North America, Europe, and Australia, emphasizing strategies for climate change adaptation. Drawing on a review of published documents and interviews with city officials, we assess regulatory
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In-situ validation of embedded physics-based calibration in low-cost particulate matter sensor for urban air quality monitoring Urban Clim. (IF 6.0) Pub Date : 2025-01-16 Zikang Feng, Lina Zheng, Bilin Ren
Low-cost particle sensors enable dense, geospatially distributed networks that enhance the spatial and temporal resolution of urban air quality monitoring. However, field interference in complex urban systems challenges the reliability of sensor data. Robust evaluation and calibration are essential to address this issue. In this study, a low-cost sensor system was deployed near standard monitoring
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Estimation of space heating CO2 emissions based only on CO2 fluxes observations Urban Clim. (IF 6.0) Pub Date : 2025-01-16 Marine Goret, Valéry Masson, Marie-Pierre Moine, William Maurel, Dominique Legain, Grégoire Pigeon
Heating buildings is a significant contributor to CO2 emissions in cities located at mid- and high-latitudes. This study aims to enhance our understanding of the average daily cycle and interseasonal variability of CO2 emissions from space heating. To achieve this goal, we have developed a methodology solely relying on observations to identify the contribution of space heating to CO2 fluxes measured
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Assessment of hydrological behavioural changes of Noyyal watershed in Coimbatore district, India by using SWAT model Urban Clim. (IF 6.0) Pub Date : 2025-01-13 Thangavelu Arumugam, Sapna Kinattinkara, Sampathkumar Velusamy, Manoj Shanmugamoorthy, Senthilkumar Veerasamy
The study aims to assess the hydrological behavioural changes of the Noyyal watershed, using the SWAT model. The SWAT model was used to stimulate a total of 15 years' of information on factors including rainfall, temperature, relative humidity, wind speed, and solar radiation. It was chose to study the Uncertainty Fitting procedure (SUFI-2) as the model for sensitivity analysis, calibration, and validation
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Cooling effects and energy-saving potential of urban vegetation in cold-climate cities: A comparative study using regression and coupled simulation models Urban Clim. (IF 6.0) Pub Date : 2025-01-11 Dongliang Han, Mingqi Wang, Jiayi Li, Tiantian Zhang, Xuedan Zhang, Jing Liu, Yufei Tan
Urban greening plays a crucial role in mitigating urban heat islands (UHIs) and improving building energy efficiency. However, the effects of urban vegetation on microclimate regulation and building energy consumption (BEC) in cold-climate regions remain underexplored. This study aims to evaluate the cooling impacts of urban greening and its influence on BEC in Harbin, a representative severe cold-climate
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Analysis of the city-scale wind environment and detection of ventilation corridors in high-density metropolitan areas based on CFD method Urban Clim. (IF 6.0) Pub Date : 2025-01-10 Rui Liu, Yuxiang Wang, Yu Zhang, Zhixing Peng, Hankai Chen, Xiang Li, Hang Li, Weiyue Li
Urban wind corridors can improve the air exchange and ventilation within the city center and mitigate high UHIs. The current study simplified the complex underlying surface using a GIS clustering analysis model to establish the 3D digital model for CFD simulation, the Reynolds-averaged Navier–Stokes (RANS) model was used to simulate the city-scale wind environment with a horizontal resolution of 30 m
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Exploring air temperature variability and socio-demographic inequalities in heat exposure through machine learning: A case study of Maricopa County, Arizona Urban Clim. (IF 6.0) Pub Date : 2025-01-09 Alamin Molla, David J. Sailor, Aaron B. Flores
This study investigates the dynamics of heat exposure in Maricopa County, Arizona, employing a multidimensional approach. Utilizing the Extreme Gradient Boosting machine learning model, we predict census block group (CBG) level air temperatures, revealing the significant influences of land surface temperature (LST) (23 % importance ‘Gain’) and elevation (28 % importance ‘Weight’) on air temperature
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Impact of climatic parameters on spatiotemporal variation of air pollutants across Bangladesh Urban Clim. (IF 6.0) Pub Date : 2025-01-09 Rajsree Das Tuli, Kazi Jihadur Rashid, Md. Mezbahul Islam, Masrur Sobhan, Sheikh Tawhidul Islam, Krishna Prosad Mondal, Byomkesh Talukder, Ananda Mohan Mondal
This study analyzed the spatiotemporal distribution of atmospheric contaminants in seven distinct climatic subzones of Bangladesh and their interactions with meteorological variables. Monthly time series data for air pollutants and meteorological variables were collected using the Google Earth Engine platform. Pearson's correlation analysis assessed the relationship between pollutant concentrations
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Spatiotemporal variability of the Universal Thermal Climate Index during heat waves using the UrbClim climate model: Implications for tourism destinations. Urban Clim. (IF 6.0) Pub Date : 2025-01-08 David Hidalgo-García, Dimitra Founda, Hamed Rezapouraghdam
There is a close relationship between tourism and climate, the latter being one of the most important factors influencing the choice of destination. Today, rising temperatures and extreme weather events pose significant risks to the tourism sector by affecting the safety and well-being of visitors. Urban tourism is particularly vulnerable due to the additive effect of the urban heat islands which exacerbate
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Spatial bias in placement of citizen and conventional weather stations and their impact on urban climate research: A case study of the Urban Heat Island effect in Canada Urban Clim. (IF 6.0) Pub Date : 2025-01-08 Priyadharshini Sakthivel, Raja Sengupta
Citizen Weather Stations (CWS) are a source of Crowdsourced Geographic Information for urban climate research, which can provide extensive datasets in areas where data are scarce or unavailable. In this article, we explore the efficacy of using meteorological data from CWS in studying the Urban Heat Island (UHI) effect across Canada during late spring and summer of 2022. In particular, we evaluate
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Simulating urban heat islands and local winds in the Dhaka metropolitan area, Bangladesh Urban Clim. (IF 6.0) Pub Date : 2025-01-06 Abeda Tabassum, Seong-Ho Hong, Kyeongjoo Park, Jong-Jin Baik
Weather and climate changes due to urbanization are of great concern. This study examines urban effects on thermal and wind environments in the Dhaka metropolitan area, Bangladesh. For this, simulations for a case of hot days with weak synoptic forcing are performed using the Weather Research and Forecasting (WRF) model. The differences between the urban and no-urban simulations are analyzed. In the
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Predicting environmental pollutants in the apartment public space: Evaluating the impact of spatial enclosure and monitoring locations Urban Clim. (IF 6.0) Pub Date : 2025-01-06 Yang Lv, Xiaodong Wang, Dan Liu
To effectively reduce monitoring costs for pollutants in complex apartment public spaces and ensure a healthy living environment for residents, this study explores the feasibility of predicting environmental pollution in apartment public spaces through experimental and data analysis methods. By adjusting the spatial enclosure (e.g., window opening or closing) and monitoring locations on the first-floor
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Impact of drought on cooling capacity and carbon sequestration in urban green area Urban Clim. (IF 6.0) Pub Date : 2025-01-04 Gabriele Guidolotti, Terenzio Zenone, Theodore Endreny, Rocco Pace, Marco Ciolfi, Michele Mattioni, Emanuele Pallozzi, Negar Rezaie, Teresa Bertolini, Chiara Corradi, Carlo Calfapietra
Through experimental observations of carbon and energy exchange in Urban Green Areas (UGA) using the Eddy Covariance technique we show that the vegetation air cooling capacity and carbon uptake are influenced by water availability: multivariate analysis shows that solar radiation (Rg) was the primary control factor in latent heat (LE) and CO2 fluxes followed by the air temperature (Tair) and Vapor
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Disentangling the non-linear relationships and interaction effects of urban digital transformation on carbon emission intensity Urban Clim. (IF 6.0) Pub Date : 2025-01-03 Wentao Wang, Shenghua Zhou, Dezhi Li, Yang Wang, Xuefan Liu
The inexorable rise of urban digital transformation (UDT) underscores the imperative of comprehending its complex relationships with carbon emissions intensity (CEI). Existing studies primarily focus on the linear relationships between individual UDT variables and CEI, overlooking non-linear dynamics and interactive effects, which may result in incomplete estimations. To address these gaps, this study
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Study on the efficiency evolution of carbon emissions and factors affecting them in 143 countries worldwide Urban Clim. (IF 6.0) Pub Date : 2025-01-03 Fugui Dong, Peijun Wang, Wanying Li
Global warming caused by carbon emissions has been recognized as a threat to public health and welfare. Therefore, carbon emission reduction is necessary for countries to cope with the serious challenges posed by global warming. In this study, we first calculated the (carbon emission efficiency) CEE of 143 countries from 2016 to 2021 using the super-efficiency SBM method. We constructed the Markov
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Disaster losses in Shanghai decreased under rapid urbanization: Evidence from 1980 to 2019 Urban Clim. (IF 6.0) Pub Date : 2025-01-02 Li Li, Jiahong Wen, Yong Shi, Yuxi Chen, Zhongchao Shi, Yanjuan Wu, Jianli Liu, Tongfei Tian, Jianping Yan, Luna Zhao, Qiang Dong
In the context of rapid urbanization, understanding the spatiotemporal evolution of disasters in coastal cities is critical for disaster risk management and building urban resilience. This study established a comprehensive database of historical disasters from 1980 to 2019 to analyze the spatiotemporal characteristics of disaster losses in Shanghai, using both absolute and relative loss indicators
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Crafting the perfect policy combination: Exploring the synergistic effects of dual-pilot energy policies on urban carbon emission efficiency Urban Clim. (IF 6.0) Pub Date : 2025-01-02 Benhong Peng, Fei Gao
Energy policy constitutes a critical instrument for environmental governance. Exploring the synergistic effects of government-led and market-incentivized energy policies, focusing on energy transition, is crucial for improving urban carbon emission efficiency. Based on panel data from 279 China's cities from 2006 to 2021, this study treats the dual-pilot policies of new energy demonstration city and
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Comparing aerosol sources in a metallurgy city: Evidence from low molecular weight organic acids in PM2.5 between 2012–2013 and 2021–2022 Urban Clim. (IF 6.0) Pub Date : 2024-12-31 Shan Liu, Kimitaka Kawamura, Bhagawati Kunwar, Ambarish Pokhrel, Changlin Zhan, Hongxia Liu, Jiaquan Zhang, Jihong Quan
Understanding the decadal evolution of atmospheric pollutants is essential for evaluating environmental policies and their impact on air quality. This study examines changes in low molecular weight (LMW) dicarboxylic acids (diacids) and related compounds in PM2.5 from 2012 –2013 to 2021–2022 in Huangshi, a metallurgy city in China. PM2.5 and associated organic components, including total carbon (TC)
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Disparities in the impact of urban heat island effect on particulate pollutants at different pollution stages - A case study of the “2 + 36” cities Urban Clim. (IF 6.0) Pub Date : 2024-12-31 Chang Yinghui, Guo Xiaomin
Urban heat island (UHI) and atmospheric pollution are critical ecological challenges in urban areas. China's air quality presents a stage-specific “polluting first and cleaning up later” model. However, the differential impact of UHI on particulate matter (PM) pollution across various stages remains unclear. This study utilizes land surface temperature (LST) data between 2000 and 2021 to calculate
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Employing the spray system to improve the regional thermal environment in outdoor open space Urban Clim. (IF 6.0) Pub Date : 2024-12-31 Yi Gao, Liming Ge, Xi Meng
Rapid urbanization has led to a significant urban heat island effect. When the spray cooling system is applied to outdoor public space, it is helpful to improve the microclimate. While a reasonable spray system is an important guarantee to improve the thermal comfort of the human body in the spray space. In this study, the combination of experimental measurement and questionnaire survey was used to
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The role of urban forests in mitigation of particulate air pollution: Evidence from ground observations in South Korea Urban Clim. (IF 6.0) Pub Date : 2024-12-31 Jihoon Seo, Hye-Ryun Oh, Doo-Sun R. Park, Jin Young Kim, Dong Yeong Chang, Chan Ryul Park, Hong-Duck Sou, Sujong Jeong
The effects of forests in mitigating urban air pollution have not been fully evaluated due to limited observational data. This study assesses the role of urban forests in reducing particulate matter (PM) using data from the recently installed ground PM observation network across South Korean forests, known as the Asian Initiative for Clean Air Networks (AICAN). Results show that urban forests are more
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Decoding prediction of PM2.5 against jointly street-tree canopy size and running vehicle density using big data in streetscapes Urban Clim. (IF 6.0) Pub Date : 2024-12-30 Yifeng Liu, Zhanhua Cao, Hongxu Wei, Peng Guo
Running vehicles are one of major sources of PM2.5 emission, and street-tree canopy can function as a green veil to retard diffusion. To decode joint contributions to PM2.5 of host city is a practical approach to predict accurate PM2.5 pollution across results given by different models. In this study, a total of 153 Chinese cities were randomly selected from China where ∼0.3 million of streetscapes
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Global warming and urbanization triggering the record-breaking heat event in summer 2023 over Beijing-Tianjin-Hebei urban agglomeration, China Urban Clim. (IF 6.0) Pub Date : 2024-12-30 Yujie Wang, Jisong Chen, Xin Lin, Lianchun Song
The summer of 2023 was characterized by record-breaking widespread heat with extensive impacts on agriculture, water supply, transportation and the socio-economy over Beijing-Tianjin-Hebei (BTH) urban agglomeration. Here, we present a timely, comprehensive, multi-faceted analysis of the 2023 extreme heat event based on six extreme heat indices(EHIs). Our findings indicate that the synergistic effect