Urban Climate最新文献_第3页

From short-term fluctuations to long-term improvement: A multi-temporal scale and multi-configurational pathway study on air pollution control 从短期波动到长期改善：大气污染治理的多时间尺度、多配置路径研究

IF 6.9 2区工程技术

Urban Climate Pub Date : 2025-09-29 DOI: 10.1016/j.uclim.2025.102624

Zheng Bu , Sheng Zeng , Xingqi Zhao

{"title":"From short-term fluctuations to long-term improvement: A multi-temporal scale and multi-configurational pathway study on air pollution control","authors":"Zheng Bu , Sheng Zeng , Xingqi Zhao","doi":"10.1016/j.uclim.2025.102624","DOIUrl":"10.1016/j.uclim.2025.102624","url":null,"abstract":"<div><div>Air pollution has become one of the significant challenges to sustainable development in human society. Based on Air Quality Index (AQI) data from 282 cities in China from 2015 to 2023, this study employs functional data analysis methods and the Hilbert space norm to systematically analyze the dynamic characteristics of AQI across three temporal scales: daily fluctuations, weekly peaks, and monthly averages. Furthermore, using a dynamic panel fuzzy-set qualitative comparative analysis model, exploring multi-configurational pathways for improving AQI at different time scales. The findings indicate that (1) The dynamic characteristics of AQI exhibit significant regional heterogeneity and temporal correlations across different time scales; (2) AQI improvement pathways demonstrate distinct time-scale dependencies: in the short term, the synergy between financial and industrial policies accounts for 85 % of the explained reduction in pollution; in the medium term, green finance and green coverage jointly account for 82.9 % of the explanatory power in controlling pollution peaks; in the long run, the synergy between green finance, urban planning, and ecological construction explains 85.7 % of the sustained improvement. Based on the findings, this study proposes policy recommendations such as enhancing green finance and refining urbanization models to support sustainable economic and environmental development of cities.</div></div>","PeriodicalId":48626,"journal":{"name":"Urban Climate","volume":"64 ","pages":"Article 102624"},"PeriodicalIF":6.9,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hot stops, cool looks: Aesthetic solutions for thermal comfort at transit stops 热站点，酷外观：公交站点热舒适的美学解决方案

IF 6.9 2区工程技术

Urban Climate Pub Date : 2025-09-27 DOI: 10.1016/j.uclim.2025.102606

Logan Steinharter , Peter C. Ibsen , Tzeng Yih Lam , Lorien Nesbitt , Keunhyun Park , Melissa R. McHale

{"title":"Hot stops, cool looks: Aesthetic solutions for thermal comfort at transit stops","authors":"Logan Steinharter , Peter C. Ibsen , Tzeng Yih Lam , Lorien Nesbitt , Keunhyun Park , Melissa R. McHale","doi":"10.1016/j.uclim.2025.102606","DOIUrl":"10.1016/j.uclim.2025.102606","url":null,"abstract":"<div><div>Increased urban heat intensifies thermal discomfort, particularly in critical public spaces such as transit stops. This study investigated the predictors of transit users' thermal perceptions in Denver, Colorado—a semi-arid city. Sixty bus stops spanning a gradient of land cover compositions were selected for study. Micrometeorological data, including thermal comfort indices, were collected alongside survey responses from 77 users at 31 unique stops. Survey responses captured thermal sensation votes (TSV) and thermal comfort votes (TCV) as well as aesthetic preference votes (APV) of bus stop structure. Ordinal forest analysis revealed that for both TSV and TCV, aesthetic preferences and thermal comfort indices were the most influential predictors of transit user thermal perception. Multiple ordered logistic regression further demonstrated that, for TSV, higher APV was associated with lower odds of rating a thermal environment as hot (OR = 0.664, <em>p</em> < 0.002) while increased Physiological Equivalent Temperature (PET) raised these odds (OR = 1.101, <em>p</em> < 0.006). An interaction analysis demonstrated that APV significantly moderated the effect of PET on TCV (interaction OR = 1.040, <em>p</em> < 0.041), suggesting that aesthetic preferences are significantly correlated with an alleviation of thermal discomfort under high heat stress. Bivariate analyses further indicated that bus stops with greater tree canopy cover (OR = 1.032, <em>p</em> < 0.025) and higher visible vegetation view factors (OR = 10.350, <em>p</em> < 0.022) were more likely to be rated as aesthetically pleasing. These findings underscore the importance of aesthetic preferences in transit stop planning for urban heat resiliency.</div></div>","PeriodicalId":48626,"journal":{"name":"Urban Climate","volume":"64 ","pages":"Article 102606"},"PeriodicalIF":6.9,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of subsystem interactions and coupling coordination in flood resilience evaluation: Comparative analysis and policy recommendations 洪水恢复力评价中子系统相互作用与耦合协调的评估：比较分析与政策建议

IF 6.9 2区工程技术

Urban Climate Pub Date : 2025-09-27 DOI: 10.1016/j.uclim.2025.102637

Yuan-Shun Chang , Kun-Ju Wu , Hao-Che Ho

{"title":"Assessment of subsystem interactions and coupling coordination in flood resilience evaluation: Comparative analysis and policy recommendations","authors":"Yuan-Shun Chang , Kun-Ju Wu , Hao-Che Ho","doi":"10.1016/j.uclim.2025.102637","DOIUrl":"10.1016/j.uclim.2025.102637","url":null,"abstract":"<div><div>This study investigates how regional variations in socioeconomic status, land use patterns, and critical infrastructure affect flood resilience by distinguishing between areas experiencing mild and severe flooding using the Flood Resilience Index (FRI). The FRI framework conceptualizes flood resilience as an integrated system comprising three subsystem indicators: hazard, exposure, and sensitivity. To understand flood resilience dynamics, this research emphasizes subsystem interactions through coupling coordination analysis. Results demonstrate that exposure is the primary determinant of FRI severity, while hazard drives FRI temporal variations. Sensitivity exhibits lesser overall impact but plays a relatively larger role in mildly flooded areas. Autocorrelation analysis confirms exposure and hazard as dominant indicators, with exposure achieving autocorrelation coefficients of 0.98 in non-urban areas and 0.96 in urban areas. In non-urban regions, topography-induced water retention prolongs exposure duration, contributing to sustained vulnerability. The study introduces an evaluation framework using coupling coefficient (Cn) analysis to quantify subsystem interactions. Findings reveal that severe flooding areas exhibit substantially lower FRI scores (minimum 0.18 in urban areas) due to prolonged flood durations and significant infrastructure damage, whereas mild flooding areas demonstrate faster recovery with socioeconomic resilience playing a more influential role. Critical infrastructure disruptions amplify FRI impacts, with 39 of 42 analysis units showing increased vulnerability when infrastructure factors are incorporated. These insights advance understanding of subsystem interdependencies and provide a robust foundation for developing targeted disaster prevention and resilience enhancement strategies across diverse urban and non-urban environments.</div></div>","PeriodicalId":48626,"journal":{"name":"Urban Climate","volume":"64 ","pages":"Article 102637"},"PeriodicalIF":6.9,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Studies of vegetation effect on turbulence dynamics in an urban canopy layer using large eddy simulation 利用大涡模拟研究植被对城市冠层湍流动力学的影响

IF 6.9 2区工程技术

Urban Climate Pub Date : 2025-09-27 DOI: 10.1016/j.uclim.2025.102628

Andrey Glazunov , Evgeny Mortikov , Andrey Debolskiy

引用次数: 0

The relationship between street greenery and daytime air temperature: A study based on parameters derived from street view images 街道绿化与日间气温的关系：基于街景图像参数的研究

IF 6.9 2区工程技术

Urban Climate Pub Date : 2025-09-26 DOI: 10.1016/j.uclim.2025.102623

Yanzhi Lu , Lee Chapman , Emma Jayne Sakamoto Ferranti , Christian Pfrang

{"title":"The relationship between street greenery and daytime air temperature: A study based on parameters derived from street view images","authors":"Yanzhi Lu , Lee Chapman , Emma Jayne Sakamoto Ferranti , Christian Pfrang","doi":"10.1016/j.uclim.2025.102623","DOIUrl":"10.1016/j.uclim.2025.102623","url":null,"abstract":"<div><div>Cooling is an important ecosystem service of street greenery. This study explores the local/micro scale relationship between street greenery and daytime air temperature in street canyons in Birmingham, UK. It analyses, for a range of atmospheric stabilities, the correlation between air temperature and indexes obtained from open-source street-level images (Google Street View) through semantic segmentation as parameters for street greenery quantity. Results show that under ideal conditions without the effects of buildings' shading, street greenery is most likely to have a significant correlation with air temperature when atmospheric stability is high with shading from tree canopies appearing to be the main greening factor in promoting cooling. However, the study also shows the importance of other non-greening factors, such as the position of people relative to the tree canopy and the sun, as well as the shade provided by buildings along streets. Overall, this study provides new insights into the nature of the relationship between urban greenery and meteorology and shows the value of using street view data for evaluating the cooling benefits of greenery. For practitioners, it demonstrates the importance of understanding the local conditions when using urban greenery for heat mitigation.</div></div>","PeriodicalId":48626,"journal":{"name":"Urban Climate","volume":"64 ","pages":"Article 102623"},"PeriodicalIF":6.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the cooling effect of the blue corridors in Antakya pre-earthquake, Türkiye 评估安塔基亚地震前蓝色走廊的冷却效果，<s:1> rkiye

IF 6.9 2区工程技术

Urban Climate Pub Date : 2025-09-26 DOI: 10.1016/j.uclim.2025.102610

Aylin Salıcı , Çiğdem Coşkun Hepcan , Ergin Canpolat , Ahsen Tuğçe Yüksel

引用次数: 0

Comparative analysis of microclimate simulations: Assessing the single-layer urban canopy model and ENVI-met in Hong Kong 香港小气候模拟的比较分析：单层城市冠层模型与ENVI-met的评估

IF 6.9 2区工程技术

Urban Climate Pub Date : 2025-09-26 DOI: 10.1016/j.uclim.2025.102621

Jonathan Lieber , Xuan Chen , Liutao Chen , Jiachuan Yang

{"title":"Comparative analysis of microclimate simulations: Assessing the single-layer urban canopy model and ENVI-met in Hong Kong","authors":"Jonathan Lieber , Xuan Chen , Liutao Chen , Jiachuan Yang","doi":"10.1016/j.uclim.2025.102621","DOIUrl":"10.1016/j.uclim.2025.102621","url":null,"abstract":"<div><div>As global warming and urban overheating continue to intensify, accurate urban microclimate modeling has become critical for sustainable urban planning. While the Single-layer urban canopy model (SLUCM, a reduced-order surface energy balance model) and ENVI-met (a computational fluid dynamic model) are the two most widely used models, a direct comparison of their performance is missing. This study aims to examine potential biases between SLUCM and ENVI-met using Hong Kong as a case study and provide guidance on model selection for different purposes. Evaluated against pedestrian-level observational data, the results show that both SLUCM and ENVI-met simulate air temperatures reasonably well, with mean absolute errors less than 1.5 °C. However, SLUCM outperforms ENVI-met in simulating relative humidity, which is partially caused by the insufficient representation of sea breeze by both models. To extrapolate SLUCM output to different heights, Monin-Obukhov similarity theory is applied. This leads to large gradient of temperature and humidity in the vertical direction, while ENVI-met simulations yield homogeneous profiles due to explicit modeling of the turbulent mixing. Findings suggest that ENVI-met suits heterogeneous neighborhoods where turbulent mixing is largely regulated by urban morphology, but its accuracy on humidity simulation needs special attention. SLUCM performs reasonably well in simulating air temperature, but it tends to yield large bias in the vertical direction. Based on the findings, we recommend development of enhanced turbulence parameterization for SLUCM, and coupling both models with mesoscale models to better account for the effect of land/sea breeze on urban microclimate in coastal cities.</div></div>","PeriodicalId":48626,"journal":{"name":"Urban Climate","volume":"64 ","pages":"Article 102621"},"PeriodicalIF":6.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding heat exposure risks and adaptation behaviors among elderly Asian communities in New York City 了解纽约市老年亚裔社区的热暴露风险和适应行为

IF 6.9 2区工程技术

Urban Climate Pub Date : 2025-09-25 DOI: 10.1016/j.uclim.2025.102630

Inkyu Han , Jin Young Seo , Heyreoun An Han , Elynna Volkova

{"title":"Understanding heat exposure risks and adaptation behaviors among elderly Asian communities in New York City","authors":"Inkyu Han , Jin Young Seo , Heyreoun An Han , Elynna Volkova","doi":"10.1016/j.uclim.2025.102630","DOIUrl":"10.1016/j.uclim.2025.102630","url":null,"abstract":"<div><div>Extreme heat exposure is a leading cause of climate-related illness and death in cities, with low-income older adults being particularly vulnerable. While outdoor air temperature is a key determinant of individual heat exposure, there is limited understanding of how personal attributes, the built environment, and adaptive behaviors influence personal heat exposure among low-income elderly individuals. From August to September 2023, we recruited 45 older Asian adults living in New York City to examine the impact of heat risk perception, climate change knowledge, home adaptation behaviors, and demographic and socioeconomic factors on individual heat exposure. Participants had an average age of 74.8 years (range: 63–89) and faced economic challenges, with 64 % reporting an annual household income below USD 40,000. Limited financial resources, including low annual incomes and fixed retirement incomes, may contribute to the low use of air conditioning for cooling at home. The results also showed that personal heat exposure exceeded ambient heat exposure, particularly during nighttime. Age and outdoor air temperature were significant factors that increased personal heat exposure, while strong adaptive behaviors helped mitigate exposure. This pilot study underscores the need for targeted strategies to reduce personal heat exposure and vulnerability among this population. Efforts should focus on increasing access to affordable cooling options, expanding energy assistance programs, and promoting adaptive behaviors through community outreach and education.</div></div>","PeriodicalId":48626,"journal":{"name":"Urban Climate","volume":"64 ","pages":"Article 102630"},"PeriodicalIF":6.9,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of continuous local climate zone time series from all available Landsat data for assessing the variability of urban climate 利用所有可用的Landsat数据构建连续局地气候带时间序列，用于评估城市气候的变率

IF 6.9 2区工程技术

Urban Climate Pub Date : 2025-09-23 DOI: 10.1016/j.uclim.2025.102611

Apurba Dinda, Soumendu Chatterjee

{"title":"Construction of continuous local climate zone time series from all available Landsat data for assessing the variability of urban climate","authors":"Apurba Dinda, Soumendu Chatterjee","doi":"10.1016/j.uclim.2025.102611","DOIUrl":"10.1016/j.uclim.2025.102611","url":null,"abstract":"<div><div>Comprehensive change information of urban surface heterogeneity with reference to diversified clusters of climate-relevant elements is essential for evaluation and management of the evolving urban thermal environment. Previous temporal assessments in this regard are primarily based on analysis of discrete images at multiple time points which failed to reveal the long-term time-consistent and continuous changes. Construction of highly frequent time-series of surface microclimatic units by leveraging the temporal dimensions of satellite observations is efficient for understanding the urban climate dynamics. This study implements a robust time-series analysis of all available Landsat (5, 7 & 8) observations (1992–2022) to construct a continuous time-series of Local Climate Zones (LCZ), a climate-based classification system of urban surface, for the case of Kolkata. The time-dependent parameters of land surface temperature were engaged to explore urban thermal zones (UTZs), a more climate dependent units of urban thermal environment, for assessment of current and expected future thermal behaviour of LCZs. Results bring out that LCZs exhibited systematic transformation trajectories (non-urban to open built-up to compact built-up), and diversified growth patterns in terms of landscape metrics and growth modes. The compact built-up LCZs were increasingly agglomerated while non-urban LCZs were increasingly fragmented over time to intensify the thermal environment. The LCZ-UTZ association analysis identifies the strongest thermal sensitivity for heavy industry LCZ with 80.37 % and 55.02 % of its area to be highly intensive and highly potential for warming in future, respectively. The dense built up LCZs showed higher thermal intensity and lower potential compared to open built-up LCZs.</div></div>","PeriodicalId":48626,"journal":{"name":"Urban Climate","volume":"64 ","pages":"Article 102611"},"PeriodicalIF":6.9,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic effects in urban industrial CO₂ and SO₂ reductions: Distribution dynamics and spatial insights from pearl river-west river cities 城市工业CO 2和SO 2减排的协同效应：来自珠江-西江城市的分布动态与空间洞察

IF 6.9 2区工程技术

Urban Climate Pub Date : 2025-09-23 DOI: 10.1016/j.uclim.2025.102619

Xin Jian , Haitao Wu , Yang Yu

{"title":"Synergistic effects in urban industrial CO₂ and SO₂ reductions: Distribution dynamics and spatial insights from pearl river-west river cities","authors":"Xin Jian , Haitao Wu , Yang Yu","doi":"10.1016/j.uclim.2025.102619","DOIUrl":"10.1016/j.uclim.2025.102619","url":null,"abstract":"<div><div>Amid rapid industrialization and urbanization, the Pearl River-West River Economic Belt (PRWREB) has resistered notable economic gains alongside intensifying environmental pressures. This paper examines the synergistic emissions reduction effects of CO<sub>2</sub> and SO<sub>2</sub> across eleven cities within the PRWREB. The results reveal that significant synergistic effects exist between the reduction of industrial CO<sub>2</sub> and SO<sub>2</sub> emissions in the PRWREB, with the majority of cities exhibiting synergistic emissions reduction indices within the range of −1 to 1. Additionally, the synergistic emissions reduction effects display a fluctuating trend, reflecting a low overall level of development and limited disparity between the eastern and western regions. Finally, spatial variations in the synergistic emissions reduction effects across cities are evident, with intra-regional variation emerging as the primary source of overall variation, followed by inter-regional variation, which exhibits the lowest hyper-variance density. The findings provide new insights into emissions reduction and air pollution management in the economic belt, thereby establishing a theoretical foundation for governments to design more effective policies that promote synergistic reductions.</div></div>","PeriodicalId":48626,"journal":{"name":"Urban Climate","volume":"64 ","pages":"Article 102619"},"PeriodicalIF":6.9,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0