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Analysis of ozone pollution causes under influence of extreme high temperatures and power rationing measures: Chengdu, China Urban Clim. (IF 6.0) Pub Date : 2024-12-11 Lijuan Lei, Miao Feng, Yi Zhang, Wei Li, Shishi Yang, Danlin Song, Yang Chen, Junjie Wang
Ozone(O3) pollution has become increasingly severe and persistent in recent years. A persistent O3 pollution event occurred in Chengdu in 2022 during a period of extreme high-temperature weather. In response, the government implemented power rationing measures to restrict industrial electricity consumption. Based on the observational data, an observation based model (OBM) and probability mass function
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Investigating the cooling impacts of Green Hearts in summer: A case study in the Changsha-Zhuzhou-Xiangtan urban agglomeration based on Weather Research Forecasting (WRF) simulations Urban Clim. (IF 6.0) Pub Date : 2024-12-10 Yipu Chen, Ran Hu, Komi Bernard Bedra
Numerous studies have established that green spaces are crucial in combating urban heat islands (UHI). As ecological Green Hearts have been adopted in many multipolar urban agglomerations, this study questions their long-term impact on urban heat mitigation. Taking the “Green Heart” area of the Changsha-Zhuzhou-Xiangtan urban agglomeration, and utilizing land use datasets between 1990 and 2020, numerical
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Multi-stakeholder perspectives on climate gentrification in Miami-Dade, Florida Urban Clim. (IF 6.0) Pub Date : 2024-12-06 Mia Matteucci, Kelsea Best, Corina McKendry
Climate gentrification (CG) considers the complex ways that climate change can interact with housing affordability, development, and social inequity to contribute to the displacement of marginalized communities. CG is an emerging topic in academic literature, but there is limited understanding of how diverse stakeholders conceptualize and experience CG on the ground. This paper investigates this phenomenon
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How does land resource mismatch affect urban energy low-carbon transition? Urban Clim. (IF 6.0) Pub Date : 2024-12-06 Hao Zhang, Yan Song, Ming Zhang
Optimizing land resource allocation is an inevitable requirement for achieving urban energy low-carbon transition. This paper explores the impact mechanism of land resource mismatch on urban energy low-carbon transition by utilizing actual land market transaction data and panel data of 284 prefecture-level cities in China obtained from China Land Market Network using crawler technology. The results
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Net impact of London Strand-Aldwych pedestrianisation project on air quality and noise Urban Clim. (IF 6.0) Pub Date : 2024-12-06 Arnout van Soesbergen, Mark Mulligan
Pedestrianisation in urban areas has the potential to reduce air and noise pollution but may lead to increased pollution in surrounding streets. To date, there are very few long-term monitoring studies that assess the net impacts of pedestrianisation on air quality and noise. This study uses a dense low-cost particulate matter and environmental noise monitoring network to assess the net impacts of
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Optimization of green space in high-density built-up areas based on cooling simulations: A case study in Xi'an, China Urban Clim. (IF 6.0) Pub Date : 2024-12-06 Sujun Zhao, Jing Dong, Fei Guo, Hongchi Zhang, Peisheng Zhu
The role of green space (GS) in mitigating the urban heat island (UHI) effect is well-recognized. However, practical research on GS optimization in high-density built-up areas, where land resources are scarce, remains limited. This study proposes a GS optimization method specifically designed for such areas, utilizing cooling simulations to establish a complete and feasible workflow. High-resolution
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A reliable and easy-to-implement approach to estimate daily urban benzene levels Urban Clim. (IF 6.0) Pub Date : 2024-12-05 David Galán-Madruga, Parya Broomandi, Jafet Cárdenas-Escudero, J.L. Urraca, Jorge O. Cáceres
Assessing air benzene is mandatory in the European Union due to potentially harmful human effects. Current exposure data are lacking since there is a limited number of fixed stations. This research provides an easy approach to estimating daily urban benzene levels potentially applicable in other geographical areas. Madrid City was regarded as a case study. They were calculated mathematical models explaining
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Unveiling the dynamics of dry-and-humid, day-and-night, and compound heat waves across 209 Cities in China during 1974–2021 Urban Clim. (IF 6.0) Pub Date : 2024-12-05 Lijun Liu, Liling Chu, Youjia Liang, Jiangang Li, Miao Yu, Chao He
Heatwaves (HWs) in China significantly impact human health and socioeconomic development, with these effects intensified by global warming and urbanization. This study provides an inter-comparison of the spatiotemporal variations and physical mechanisms of six HW types across 209 Chinese cities from 1974 to 2021: dry-daytime (DD), dry-nighttime (DN), dry-compound (DC), humid-daytime (HD), humid-nighttime
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Filling gaps in urban temperature observations by debiasing ERA5 reanalysis data Urban Clim. (IF 6.0) Pub Date : 2024-12-05 Amber Jacobs, Sara Top, Thomas Vergauwen, Juuso Suomi, Jukka Käyhkö, Steven Caluwaerts
Gaps in urban meteorological time series complicate the analysis and usage of datasets. Various gap-filling techniques exist, including the debiasing of ERA5 reanalysis data. Unfortunately, an extensive evaluation of these debiasing techniques is lacking for urban datasets. This research compares five gap-filling techniques for urban temperature time series, including three debiasing techniques that
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Diurnal variations in cooling effects of urban parks based on ECOSTRESS data: A case study of Beijing Urban Clim. (IF 6.0) Pub Date : 2024-12-04 Zhitao Wei, Jia Liu, Xing Gao, Yuming Wu, Zihang Liu, Jiaye Yao
Urban parks create cooler microclimates, mitigating urban heat island effects, but diurnal variations in cooling remain unclear. We analyzed 97 parks within Beijing's fifth ring road using ECOSTRESS land surface temperature data to assess cooling from both maximum and cumulative perspectives. Results show that park cooling is stronger during the daytime, with the maximum median cooling area and efficiency
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Pervious asphalt pavement- and concrete wall-watering for urban cooling: Characterization of surface cooling effects at an outdoor test site Urban Clim. (IF 6.0) Pub Date : 2024-12-04 Maxime Frere, Martin Hendel, Julien Van Rompu, Simon Pouget, Laurent Royon
Pervious pavement- and wall-watering was studied at a 100 m2 pilot site in Hy'eres (France). Surface temperature monitoring was conducted continuously with an infrared camera to assess watering's cooling effects and duration as well surface drying time for the concrete fa¸cade and the pervious pavement. Watering was conducted every hour for 15 min from 8 am to 6 pm in summer 2021. Results show up to
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Three-dimensional landscape features impact on urban surface wind velocity during a heatwave: Relative contribution and marginal effect Urban Clim. (IF 6.0) Pub Date : 2024-12-02 Junda Huang, Yuncai Wang, Mangmang Wang
Accelerating the flow of surface air through urban areas at a faster rate is one of the important nature-based solutions for reducing the threat of urban overheating. Previous studies have focused on analyzing the correlation between two-dimensional landscape patterns and sky conditions. However, the relative contribution of three-dimensional (3D) landscape features to urban wind and the marginal effect
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A study on risk perception and adaptive behavior of the Chinese public toward urban heat based on the MPPACC model Urban Clim. (IF 6.0) Pub Date : 2024-12-02 Duo Chen, Lushi Kong, Jindan Zhang, Chun Fan, Yili Zhang, Bei Li
In the context of global warming, the interaction between heat waves and urban heat islands has led to an increasing trend in the intensity, frequency and duration of extreme heat events in urban areas, which seriously threatens the health of urban populations. Adaptation will be the main strategy for human beings to cope with climate change under the current situation. This study uses the model of
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Spatial and temporal correlation between green space landscape pattern and carbon emission—Three major coastal urban agglomerations in China Urban Clim. (IF 6.0) Pub Date : 2024-12-02 Xiaoping Wang, Zeyan Li, Tris Kee
Urban green spaces, including parks, gardens, and tree-lined streets, can play a crucial role in mitigating atmospheric CO2 levels. Understanding the distribution and dynamics of these green spaces is essential for their effective incorporation into urban planning to reduce carbon emissions. However, previous literatures have largely overlooked the integration of green space patterns in urban planning
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From thermal demand characterization to accurate evaluation: Exploring seasonal differences in outdoor thermal comfort of the elderly in China's communities Urban Clim. (IF 6.0) Pub Date : 2024-12-01 Yan Wang, Liyuan Yin, Qiwei Dong, Fan Fei, Wanxiang Yao, Jiang Sun, Zhongtian Jiang
Influenced by rapid urbanization and an aging population, creating a healthy and comfortable outdoor environment for the elderly in urban residential communities has become increasingly important. This paper aims to investigate the outdoor thermal comfort characteristics of the elderly, using residential communities in Tianjin, China, as a case study. Initially, we clarified the differences in thermal
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Providing support for urban planning through investigating the cooling influence of park in Northern China: A case study of Xi'an Urban Clim. (IF 6.0) Pub Date : 2024-11-30 Kai Xin, Jingyuan Zhao, ZhaoXin Li, Yujin Yang, Tianhui Wang, Weijun Gao
Urban parks are widely acknowledged for their role in mitigating the urban heat island effect and primarily function as spaces for relaxation and recreation for nearby residents. This study aims to guide land use planning around parks by evaluating the coupling mechanism between spatial morphology, wind patterns, distance to the park boundary (DTPB) and Park cooling island (PCI) intensity. PCI intensity
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Assessing urban growth exposure to sea level rise using a machine learning based model with Alexandria as a case study Urban Clim. (IF 6.0) Pub Date : 2024-11-30 Mohamed Noby, Linda See, Ayyoob Sharifi, Omar Hamdy
Alexandria governorate, like most coastal developing regions around the world, suffers from uncontrolled urban sprawl through high-risk areas vulnerable to threats related to climate change. This could result in significant consequences such as an accelerated sea level rise, which is expected to directly impact most low-lying coastal cities worldwide. This paper examines the impact of sea level rise
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A thermo-physiologically consistent approach for studying the heat-health nexus with hierarchical generalized additive modelling: Application in Athens urban area (Greece) Urban Clim. (IF 6.0) Pub Date : 2024-11-30 Christos Giannaros, Theo Economou, Daphne Parliari, Elissavet Galanaki, Vassiliki Kotroni, Konstantinos Lagouvardos, Andreas Matzarakis
The significance of the thermo-physiological determinants of heat-related deaths has been recognized since antiquity. Still, the impact of heat on human health in the modern era is repeatedly assessed in the epidemiological literature based solely on the environmental drivers of heat stress, primarily using aggregated daily metrics of air temperature. Going beyond this simplified approach, here we
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Enhancing decision-making for climate change mitigation and sustainable urban growth Urban Clim. (IF 6.0) Pub Date : 2024-11-29 Zahra Parvar, Marjan Mohammadzadeh, Sepideh Saeidi
Uncontrolled urban expansion presents significant challenges to green spaces, leading to increased land surface temperature, and carbon emissions. This study emphasizes the importance of predicting urban growth, monitoring LST, and assessing green space suitability to mitigate these impacts in Bojnourd City, Iran. This research aims to enhance land use planning by employing the SLEUTH model and integrating
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Analysis of microclimate and spatial geometry correlation of squares in cold urban settlements: A study in Urumqi Urban Clim. (IF 6.0) Pub Date : 2024-11-29 Li Zhang, Ping Yuan, Yingjie Ding
With the rapid development of contemporary cities, the environmental problems of public space in settlements are becoming more and more prominent, and the planning, design, and renovation of urban settlements are focusing more and more on the creation of a comfortable and healthy human environment in order to seek sustainable development. The study aims to explore the rational urban space geometry
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Effects of lift-up building design, building setback, and urban open space on pedestrian danger under the joint effect of floodwater and wind Urban Clim. (IF 6.0) Pub Date : 2024-11-29 Shuyou Liu, Zhongfan Zhu, Wenqi Wu, Dawei Zhang, Dingzhi Peng, Bo Pang
Urban block layouts affect both the flow patterns of floodwater and wind in urban built environments and ultimately pedestrian danger within the urban building array. Computational fluid dynamics (CFD) is used to simulate both the floodwater inundation process and the wind-blowing process within three kinds of urban block configurations under a floodwater-wind joint effect, including the lift-up building
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Exploring the impact of low-carbon city pilot policy on urban ecological welfare performance: A quasi-natural experiment in 282 Chinese cities Urban Clim. (IF 6.0) Pub Date : 2024-11-28 Xinmin Zhang, Xiumei Xu, Sheng Pan, Yan Mo, Caihua Dong
Ensuring urban ecological welfare performance through low-carbon city pilot policy is essential for building sustainable and livable cities with human well-being as the priority. However, current research often emphasizes carbon emission reduction while overlooking a comprehensive evaluation of ecological welfare performance. This study examines the impact of low-carbon city pilot policy on ecological
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Impact of urban sunken square design on summer outdoor thermal comfort using machine learning Urban Clim. (IF 6.0) Pub Date : 2024-11-26 Haibin Zhang, Maoyi Ao, Neda Ghaeili Ardabili, Zixian Xu, Julian Wang
The issue of the thermal environment in urban open spaces has grown more noticeable due to the combined impact of global warming and the urban heat island effect. Insufficient research has been conducted on the impact of geometric space shape on the thermal environment, despite its significance as a public area. This paper analyses the influence of the geometric space shape of a sunken square on thermal
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Environment-meteorology interactions with PM: Structural equation modeling and regression analysis Urban Clim. (IF 6.0) Pub Date : 2024-11-26 Dongliang Han, Mingqi Wang, Tiantian Zhang, Xuedan Zhang, Jing Liu, Yufei Tan
To investigate the temporal variations of meteorological (MET) factors and PM concentrations, as well as the correlation between MET and environmental (ENV) parameters and PM across various open space types (OSTs) in Harbin. The research results show that significant differences in MET and PM exist among OSTs, suggesting that OSTs can reflect variations in urban PM concentrations. The greening-concentration
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A modified PSO based hybrid deep learning approach to predict AQI of urban metropolis Urban Clim. (IF 6.0) Pub Date : 2024-11-26 Nairita Sarkar, Pankaj Kumar Keserwani, Mahesh Chandra Govil
Environment and human health are seriously threatened by air pollution. The effects of air pollution are more severe in metropolitan areas due to the presence of harmful pollutants. The goal of this work is to forecast the Air Quality Index (AQI), of 15 metropolitan cities in India and analyze various air pollutants that are mostly responsible for higher levels of air pollution in a particular city
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Revealing the future complexity of urban water scarcity and drought via support vector machine: Case from semi-arid Bursa urban area Urban Clim. (IF 6.0) Pub Date : 2024-11-22 Semanur Coskun, Abdullah Akbas
The Mediterranean Basin is a significant area will be affected by drought and water scarcity in future. In this context, Bursa urban area, the fourth largest city in terms of population in Türkiye was used for quantification. A high-resolution global climate model of MPI-ESM-MR based RCP4.5 and 8.5, and population projections based on arithmetic and exponential growth models until 2100 was utilised
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Mitigating urban heat along roadways; systematic review of impact and practicability Urban Clim. (IF 6.0) Pub Date : 2024-11-22 Elahe Mirabi, Peter J. Davies
Roads contribute to the urban heat of cities. Their design, landscaping, morphology, and materials influence the microclimate and accumulation of heat at local to boundary scales. Roadways contribute up to 35 % of the urban landscape yet remain a relatively under research area within the UHI literature. This paper presents a systematic review of 248 articles exploring the extent to which roads can
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Effects of the urban development on the near-surface air temperature and surface energy balance: The case study of Madrid from 1970 to 2020 Urban Clim. (IF 6.0) Pub Date : 2024-11-22 J. Carbone, B. Sanchez, C. Román-Cascón, A. Martilli, D. Royé, C. Yagüe
The aim of the present study is to examine the impact of Madrid's urban growth over the last 50 years (1970–2020). We conduct a modelling study using WRF-ARW with the multilayer urban parameterization BEP-BEM, in which different urban parameters have been incorporated at each point within the model's inner domain according to urban expansion from 1970 to 2020. Two scenarios of important societal interest
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Urbanization effects on temperature: 1826–1850 Urban Clim. (IF 6.0) Pub Date : 2024-11-22 Donald F. Vitaliano
Mean, minimum and maximum monthly temperatures for 58 stations in New York State covering the period 1826–1850 are used to estimate a random effects panel regression. Controlling for latitude, elevation and seasonality, a statistically significant positive effect of population on minimum temperature is detected. At the mean population of 8500, the estimated effect is 0.19 °F (0.105 °C), which is consistent
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Evaluating policy effectiveness in mitigating urban air pollution: Insights from developing economies Urban Clim. (IF 6.0) Pub Date : 2024-11-21 Meng Cai, Jin Sun, Jin Hu
Urban air pollution remains a critical challenge in developing countries, exacerbated by rapid urbanization and industrialization. This study makes a significant contribution to the literature by evaluating the effectiveness of China's strategic policy measures aimed at mitigating urban air pollution. Using a difference-in-differences (DID) methodology, we analyze data from 268 cities, providing one
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The relative importance of anthropogenic heat and wall heat flux on the street canyons warming: A multi-physics numerical simulation Urban Clim. (IF 6.0) Pub Date : 2024-11-21 Weichen Zhang, Shuojun Mei, Liyue Zeng
Street canyon warming is influenced by both solar-heated walls and anthropogenic heat releasing. This study aims to evaluate the relative importance of anthropogenic heat emissions and wall heat fluxes induced by realistic solar heating on the air temperature in 2D street canyons. Computational fluid dynamics (CFD) simulations were conducted, considering two anthropogenic heat emitting locations (from
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Assessing future flood risks in megacity suburbs under shared socioeconomic pathways (SSPs) scenarios: A case study of Beijing Urban Clim. (IF 6.0) Pub Date : 2024-11-20 Mengyuan Jia, Jiaqi Lin, Jiaxing Dai, Jingyi Zhang
Climate change increases the frequency and intensity of extreme storm events, causing increasing flood challenges to the cities, especially for the urban fringe of megacities. This paper aims to explore the future flood risk under climate change by three Shared Socioeconomic Pathways (SSPs) scenarios, focusing on Beijing's suburbs as a case study. Using a GIS-based Soil Conservation Service Curve Number
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Analyzing the rainfall trend and hydroclimatic teleconnections using Hilbert Huang Transform for the coastal smart cities of India Urban Clim. (IF 6.0) Pub Date : 2024-11-20 Sourav Mandal, S. Yuvaraj, Jublee Mazumdar, Joydeep Ballav
The changing climatic patterns associated with intense and erratic rainfall have led to high flooding risk in urban areas. Identifying these hydro-meteorological risks in cities is a matter of concern for decision-makers. The present study investigates long-term rainfall variability and trend analysis in 11 coastal smart cities in India. A relatively new approach involving the Hilbert–Huang transform
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Impact of modeling methods on urban flood processes at community scale Urban Clim. (IF 6.0) Pub Date : 2024-11-17 Jiahao Lv, Jingming Hou, Tian Wang, Donglai Li, Yuan Liu, Shuhong Xue, Guangzhao Chen, Baojun Guan
Constructing rainfall-runoff models at the community scale involves challenges due to varying data availability and the potential generalization of critical microtopographical features or the use of different modeling approaches. It is crucial and urgent that the differences among various modeling methods are understood under different external boundary conditions. This work examines the synergistic
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Application of human-centric digital twins: Predicting outdoor thermal comfort distribution in Singapore using multi-source data and machine learning Urban Clim. (IF 6.0) Pub Date : 2024-11-16 Xin Liu, Zhonghua Gou, Chao Yuan
In the face of global climate warming, outdoor thermal comfort in urban settings is increasingly critical. However, accurately predicting residents' thermal perceptions during outdoor activities remains challenging due to complex environmental dynamics. This study introduces a human-centered digital twin framework that integrates physiological data, atmospheric conditions, and urban building environment
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Insights into source-specific PM2.5 mass, light extinction, and health risks in heavily polluted urban and suburban areas, northwestern China Urban Clim. (IF 6.0) Pub Date : 2024-11-16 Julian Shi, Chongshu Zhu, Suixin Liu, Yao Qu, Wenting Dai, Nan Wang, Luyao Wang, Yue Zhou, Rui Li, Yingqiang Shi, Junji Cao
To investigate the source apportionments of PM2.5 mass, light extinction, and health risk in a typical polluted Chinese city (Xianyang), urban and suburban PM2.5 samples were collected during the heating season (HS) and the non-heating season (NHS), respectively. Heightened levels of PM2.5 and chemical components were observed during the HS, particularly in urban areas. The urban and suburban PM2.5
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Evolution of land surface temperature, land use land cover and their relationship: A case study of Maceió, Brazil Urban Clim. (IF 6.0) Pub Date : 2024-11-14 Michelle Adelino Cerqueira, Ricardo Victor Rodrigues Barbosa, Tiago Peixoto da Silva Lôbo
Land use land cover (LULC) change is a key contributor to land surface temperature (LST) and, consequently, the urban heat island effect. Investigating changes in urban morphology through LULC change and its impact on LST is crucial for urban planning and thermal comfort. In this work, we analyze the time-series evolution of both LST and LULC as well as their relationship in the city of Maceió, the
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Contributions of temperature and humidity to intra-city variations in humid heat Urban Clim. (IF 6.0) Pub Date : 2024-11-13 Yichen Yang, Xuhui Lee
In this study, we investigated the intracity variation of humid heat in consideration of the contributions from temperature and humidity. Data were collected from mobile surveys in a mid-latitude industrial city. We found greater humid heat in built-up neighborhoods than in rural neighborhoods. Land surface temperature exaggerates the disparity in heat exposure as opposed to air temperature, although
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Evaluating the natural cooling potential of waterbodies in dense urban landscape: A case study of Bengaluru, India Urban Clim. (IF 6.0) Pub Date : 2024-11-13 Arpit Verma, Sonam Agrawal
This study examines the water-induced cooling capability of 12 waterbodies in Bengaluru City, India, using Landsat 8 OLI/TIRS data. The study categorized and investigated the cooling impact of urban landscapes using Local Climatic Zone (LCZ) classification. The results indicate that dense urban built-up areas and impervious surfaces lead to higher Land Surface Temperature (LST). Large-sized waterbodies
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Practitioner perspectives on sea-level rise impacts on shallow groundwater: Implications for infrastructure asset management and climate adaptation Urban Clim. (IF 6.0) Pub Date : 2024-11-12 Amandine L. Bosserelle, Matthew W. Hughes
Climate change is causing sea levels to rise, posing an unprecedented threat to coastal communities and infrastructure from coastal flooding and other hazards. The impact of sea-level rise on coastal shallow groundwater and subsequent impacts on infrastructure assets is a challenge that is not well understood. Semi-structured interviews were conducted with infrastructure engineers, asset managers and
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Exposure to hourly ambient temperature and temperature change between neighboring days and risk of emergency department visits for cause-specific cardiovascular disease Urban Clim. (IF 6.0) Pub Date : 2024-11-08 Kun Yuan, Xin Lv, Yangchang Zhang, Ruiyi Liu, Tian Liang, Zhenyu Zhang, Wangnan Cao, Lizhi Wu, Shengzhi Sun
Little is known regarding the association between hourly exposure to ambient temperature and temperature change between neighboring days (TCN) with the risk of emergency department (ED) visits for cardiovascular disease (CVD). We conducted a time-stratified case-crossover study among 1.03 million ED visits for CVD between 2016 and 2021 in Zhejiang Province, China. Our analysis reported a reversed J-shaped
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Jason Ching and the development of an Urban Climate Science: An introduction to the special issue on the World Urban Database Access Portal Tools (WUDAPT) Urban Clim. (IF 6.0) Pub Date : 2024-11-07 Gerald Mills, Saravanan Arunachalam, Yuan Shi, Alexander Baklanov
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Changes in urban heat island intensity with background temperature and humidity and their associations with near-surface thermodynamic processes Urban Clim. (IF 6.0) Pub Date : 2024-11-06 Kyeongjoo Park, Jong-Jin Baik, Han-Gyul Jin, Abeda Tabassum
This study investigates changes in urban heat island (UHI) intensity with background temperature and humidity and their associations with physical processes. For this, we conducted idealized ensemble simulations with different initial potential temperature and water vapor mixing ratio profiles using the Weather Research and Forecasting (WRF) model. The daytime and nighttime UHI intensities increase
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Towards better understanding the urban environment and its interactions with regional climate change - The WCRP CORDEX Flagship Pilot Study URB-RCC Urban Clim. (IF 6.0) Pub Date : 2024-11-06 Gaby S. Langendijk, Tomas Halenka, Peter Hoffmann, Marianna Adinolfi, Aitor Aldama Campino, Olivier Asselin, Sophie Bastin, Benjamin Bechtel, Michal Belda, Angelina Bushenkova, Angelo Campanale, Kwok Pan Chun, Katiana Constantinidou, Erika Coppola, Matthias Demuzere, Quang-Van Doan, Jason Evans, Hendrik Feldmann, Jesus Fernandez, Lluís Fita, Panos Hadjinicolaou, Rafiq Hamdi, Marie Hundhausen, David
High-quality climate information tailored to cities' needs assists decision makers to prepare for and adapt to climate change impacts, as well as to support the targeted transition towards climate resilient cities. During the last decades, two main modelling approaches emerged to understand and analyse the urban climate and to generate information. Firstly, meso- and microscale urban climate models
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Characterizing and predicting carbon emissions from an emerging land use perspective: A comprehensive review Urban Clim. (IF 6.0) Pub Date : 2024-11-06 Haizhi Luo, Zhengguang Liu, Yingyue Li, Xiangzhao Meng, Xiaohu Yang
Global warming has heightened the focus on carbon emissions. The IPCC 2023 Special Report: Climate Change and Land highlights the emerging field of land use-based carbon emissions characterization and prediction. This comprehensive review compares the advantages of Land Use and Land Cover Change in carbon emissions characterization and prediction against traditional methods. Using bibliometrics, the
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Exploring the supply-demand match and drivers of blue-green spaces cooling in Wuhan Metropolis Urban Clim. (IF 6.0) Pub Date : 2024-11-02 Yunhao Fang, Liyuan Zhao
This study explores the spatial evolution and driving factors of cooling supply and demand matching in blue-green spaces (BGSs) to alleviate urban heat island effects. Using Wuhan Metropolis as a case study, the cooling supply index (CSI) and cooling demand index (CDI) were utilized to assess the BGSs' cooling supply capacity and demand levels in 2014, 2018 and 2022. The relationship between them was
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Asymmetric trends in sulfates, nitrates, and ammonium in PM2.5 of Chengdu: Insights from five years of hourly observations Urban Clim. (IF 6.0) Pub Date : 2024-11-02 Qian Jin, Miao Feng, Yunfei Liu, Qi Liu, Siyuan Zhang, Dongwei Gui
Sulfate, nitrate, and ammonium (SNA) are critical components of PM2.5, posing significant health risks and playing a vital role in air pollution formation in megacities. Long-term monitoring and high-time resolution temporal data of these pollutants are essential for identifying potential sources as well as evaluating and planning control measures. This study analyzes a five-year real-time dataset
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Remote sensing-based evapotranspiration modeling for urban green spaces: A case study in Vienna Urban Clim. (IF 6.0) Pub Date : 2024-11-01 Michael Obriejetan, Theresa Krexner
Urban green spaces (UGS) play a critical role in enhancing urban livability, moderating microclimates, and supporting ecological balance. This study models actual evapotranspiration (ETa) in Vienna's UGS using high-resolution climate data and Sentinel-2 imagery. The primary objective is to adapt crop coefficients (Kc) for urban environments and provide a comprehensive understanding of UGS water dynamics
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Estimating impacts of micro-scale land use/land cover change on urban thermal comfort zone in Rajshahi, Bangladesh: A GIS and remote sensing based approach Urban Clim. (IF 6.0) Pub Date : 2024-11-01 Md. Shakil Ar Salan, Mohammad Amir Hossain Bhuiyan
Rapid urban growth causes significant decrease in green cover which ultimately results higher temperature and strongest Urban Thermal Field Variance Index (UTFVI) effect. Rajshahi has the highest heat index score after the southwest region. Hence, Rajshahi city is particularly vulnerable to heat waves. There is a major gap in exploring the micro-scale thermal conditions in Rajshahi. The primary purpose
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Impact of digital economy on co-benefits of air pollution reduction and carbon reduction: Evidence from Chinese cities Urban Clim. (IF 6.0) Pub Date : 2024-10-31 Lixiang Guo, Shujing Yue
Pursuing co-benefits of air pollution reduction and carbon reduction (co-benefits) is an inevitable choice for the green development of China, with the digital economy (DE) presenting a viable novel opportunity. This study, based on data from 284 prefecture-level cities in China spanning from 2011 to 2021, examines the impact and full chain mechanisms of the DE on co-benefits. The results indicate
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Compound effects in complex estuary-ocean interaction region under various combination patterns of storm surge and fluvial floods Urban Clim. (IF 6.0) Pub Date : 2024-10-30 Zhaoli Wang, Yuhong Chen, Zhaoyang Zeng, Ruishuang Li, Zeyan Li, Xuefang Li, Chengguang Lai
Estuary-ocean interaction regions typically confront compound floods caused by multiple drivers. However, current researches on formation mechanism and compound effect of such disaster remain inadequately profound. Therefore, this study proposed a framework to evaluate the encountering rules and hazards of compound flood based on Copula theory and hydrodynamic model. Taking Pearl River Delta (PRD)
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The spatiotemporal evolution of dry (wet), cold (hot) and rainstorm whiplash events and their socioeconomic exposure Urban Clim. (IF 6.0) Pub Date : 2024-10-30 Changqing Meng, Zhihan Hu, Yue Li, Yuankun Wang, Yanke Zhang, Keying Liu
The phenomenon of weather whiplash refers to sudden shifts in extreme weather events, which can have profound impacts on local climate systems, posing significant challenges to human society and ecosystems. Previous studies on whiplash events have been limited to compound events involving high temperatures and drought, without considering compound events involving low temperatures and drought, as well
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City-scale assessment of pedestrian exposure to air pollution: A case study in Barcelona Urban Clim. (IF 6.0) Pub Date : 2024-10-30 Jan Mateu Armengol, Cristina Carnerero, Clément Rames, Álvaro Criado, Javier Borge-Holthoefer, Albert Soret, Albert Solé-Ribalta
Air pollution is a pressing environmental risk to public health, particularly in cities where population density and pollution levels are high. Traditional methods for exposure analysis often rely on census data, but recent studies highlight the impact of daily mobility on individuals' exposure. Here, we develop a methodology to determine unprecedented pedestrian exposure estimates at the city scale
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Sensitivity analysis of building material, ground material, and tree parameters in microclimate simulations Urban Clim. (IF 6.0) Pub Date : 2024-10-29 Anh-Vu Le, Oi-Man Hip, Shun-Yu Yang, Ying-Chieh Chan
Understanding urban microclimates is crucial amid rapid urbanization and climate change. Studying these microclimates through computational fluid dynamics (CFD) simulations allows researchers to analyze various urban design scenarios. However, setting up building, ground material, and tree parameters in simulations is essential yet challenging. This study investigates the impact of these three parameter
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SUHI evolution characteristics and influencing mechanism of eight furnace cities in middle and lower reaches of Yangtze River, China Urban Clim. (IF 6.0) Pub Date : 2024-10-28 Jianchen Yu, Fei Tao, Luyu Chen, Tong Zhou
The surface urban heat island (SUHI) effect poses severe challenges to urban sustainable development and urban livability. Current studies lack the analysis of heat island effect from the perspective of new and old furnace cities. In this study, spatiotemporal characteristics and influencing mechanisms of heat islands were investigated in eight furnace cities in middle and lower reaches of Yangtze
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An assessment of the relationship between micro-mobility use and air quality in selected cities Urban Clim. (IF 6.0) Pub Date : 2024-10-28 Emre Kuşkapan
Air pollution causes serious health problems and environmental impacts in many countries around the world. This study aims to reveal the relationship between the micro-mobility usage frequency and air pollution in cities. In order to reveal this relationship, the micro-mobility usage frequency and air quality index values of PM2.5 and PM10 pollutants for 6 different cities with similar population from
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Introducing new morphometric parameters to improve urban canopy air flow modeling: A CFD to machine-learning study in real urban environments Urban Clim. (IF 6.0) Pub Date : 2024-10-28 Jonas Wehrle, Christopher Jung, Marco Giometto, Andreas Christen, Dirk Schindler
This study proposes a machine learning (ML) framework generating spatially-distributed mean wind fields at a given height above ground within arbitrary urban canopy geometries. The framework is based on the Random Forest formulation and is trained using building resolving large-eddy simulations of flow over a range of realistic urban environments. The model maps up to 10 morphometric parameters, including
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Characteristics of PM2.5-bound water-soluble inorganic ions generated during cooking Urban Clim. (IF 6.0) Pub Date : 2024-10-26 Baoqing Wang, Jieyu Wang, Yanyu Bai, Ao Guo, Xiaofan Xu, Juncheng Wu, Qing Wang
Commercial cooking is an important source of PM2.5, which adversely affects air quality, posing threats to human health. However, few studies have examined the effects of commercial cooking on outdoor air quality. We aimed to analyze characteristics of outdoor PM2.5 and ions from commercial cooking during cooking and non-cooking times in a popular restaurant area at Nankai University. The acidity and
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Mapping CO2 traffic emissions within local climate zones in Helsinki Urban Clim. (IF 6.0) Pub Date : 2024-10-26 Omar Al-Jaghbeer, Pak Lun Fung, Ville-Veikko Paunu, Leena Järvi
Road traffic is one of the major emitters of carbon dioxide (CO2) to the atmosphere. Besides detailed carbon emission calculations, methods to upscale the emissions are needed, particularly in areas where good-quality data to calculate CO2 emissions are lacking. To support this need, this study aims to quantify traffic-related CO2 emissions within Local Climate Zones (LCZs) in Helsinki, Finland, and
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The impact of urban morphology on thermal environment under extreme heat: A case study in Nanjing, China Urban Clim. (IF 6.0) Pub Date : 2024-10-25 Yuhan Zhang, Ying Kong, Cen Chen, Jiayi Lin, Dongli Lin, Yaowen Zhang, Yingnan Li
The diverse urban morphology leads to different microclimates within urban areas. However, little is known about the relationship between different urban morphology types and their impact during extreme heat events, particularly in humid subtropical climates. To address this gap, we analyzed six types of blocks in Nanjing, China, distinguished by three building heights and two street orientations,