Article
Environmental Sciences
Yuqing Dai, Xiaoming Cai, Jian Zhong, A. Rob MacKenzie
Summary: A multi-box model is proposed to simulate the transportation and distribution of chemical species in street canyons, showing good agreement with LES simulations, especially for deep canyons. The model performs well in capturing patterns and is more suitable for sensitivity testing compared to LES.
ATMOSPHERIC ENVIRONMENT
(2021)
Review
Ecology
D. Voordeckers, T. Lauriks, S. Denys, P. Billen, T. Tytgat, M. Van Acker
Summary: Recent studies highlight the importance of addressing traffic-related air pollution in urban environments, particularly in street canyons with limited natural ventilation and higher pollution levels. Despite numerous studies conducted on this issue, information remains fragmented and applications in urban planning are relatively unknown. Therefore, this study aims to provide a comprehensive overview, formulate spatial guidelines, and improve the application of reviewed studies in urban planning.
LANDSCAPE AND URBAN PLANNING
(2021)
Review
Environmental Sciences
Mamatha Tomson, Prashant Kumar, Yendle Barwise, Pascal Perez, Hugh Forehead, Kristine French, Lidia Morawska, John F. Watts
Summary: This review assesses the suitability of green infrastructure (GI) in street canyons for air quality improvement, highlighting green walls, green screens, and green roofs as potentially viable options in existing street canyons where planting space is limited. Deposition of pollutants on leaves is an important factor influencing the effectiveness of plant species in mitigating pollution, with micromorphological leaf traits such as grooves, ridges, trichomes, stomatal density, and epicuticular wax amount positively correlating with deposition. Further research is needed to substantiate the efficacy of green walls and green screens in street canyons.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Multidisciplinary Sciences
Gunda Singer, Roman Overko, Serife Yilmaz, Emanuele Crisostomi, Robert Shorten
Summary: The increasing popularity of zero tailpipe emission vehicles is a positive development in the fight against traffic pollutants, with a shift towards concerns about emissions from tires and brake disks. While the issue of tire emissions is known, there are still unexplored areas in understanding its environmental impact, modeling, and mitigation measures. Various directions of work have been explored, including methods for on-vehicle tire dust collection, algorithms to reduce tire emissions, and controlling vehicle characteristics.
Article
Engineering, Environmental
Meng Qi, Steve Hankey
Summary: By leveraging Google Street View imagery and deep learning models, we developed LUR models for predicting street-level particulate air pollution, achieving higher spatial resolution and better performance compared to traditional LUR models.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Geography
Mohammadreza Baradaran Motie, Mansour Yeganeh, Mohammadreza Bemanian
Summary: This study investigates the effects of different greenery patterns in urban canyons on air pollution and thermal comfort. The results show that planting deciduous trees in the median strip has the most favorable effect on improving air quality and thermal comfort in different seasons. Moving deciduous trees from the sidewalks to the median strip has significantly reduced air pollution at the pedestrian level.
Article
Environmental Sciences
Chia-Hsin Lee, Shih-Chun Candice Lung, Jen-Ping Chen
Summary: The objective of this study is to validate the accuracy of the Graz Lagrangian model (GRAL) in predicting the distribution of PM2.5 in an urban community in Northern Taiwan. The study showed that GRAL performed well in predicting the horizontal and vertical distribution of PM2.5 under certain wind conditions. The simulation results revealed an uneven dispersion of PM2.5 in street canyons, with the concentration being higher in inner alleys compared to main streets within the community.
ATMOSPHERIC POLLUTION RESEARCH
(2023)
Article
Construction & Building Technology
Chunping Miao, Shuai Yu, Yuanman Hu, Miao Liu, Jing Yao, Yue Zhang, Xingyuan He, Wei Chen
Summary: This study conducted a seasonal field investigation in a street canyon in Shenyang, China, and found that street trees have varying effects on particulate matter concentration near ground level throughout different seasons, sometimes beneficial, and sometimes worsening pollution levels.
SUSTAINABLE CITIES AND SOCIETY
(2021)
Article
Engineering, Multidisciplinary
Xiaoxuan Zhu, Xueyan Wang, Li Lei, Yuting Zhao
Summary: This study used numerical simulations to investigate the diffusion of vehicle exhaust emissions in street canyons, focusing on the effects of roadside green belts, urban street spatial layout, and wind speed. The research found that the positioning of green belts and the dimensions of trees had an impact on pollutant diffusion.
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES
(2022)
Article
Plant Sciences
Xiaoping Chen, Xiaoshuang Wang, Xiaogang Wu, Jinping Guo, Zhixiang Zhou
Summary: Research shows that different vegetation barriers can have varying effects on PM concentrations, with a significant negative correlation between shelterbelt porosity and reduction efficiencies of TSP and PM10, while the impact on PM2.5 is inconsistent. To improve roadside air quality, encouraging the use of shrubs or hedges under 2 meters in height is recommended, while large, dense trees near busy roads should be avoided.
URBAN FORESTRY & URBAN GREENING
(2021)
Article
Construction & Building Technology
D. Voordeckers, F. J. R. Meysman, P. Billen, T. Tytgat, M. Van Acker
Summary: Research shows significant correlations between air quality in street canyons and morphological indices, traffic volume, with aspect ratio and maximum hourly traffic volume affecting NO2 concentrations. For street canyons with specific aspect ratios, a traffic volume of 300 vehicles per hour was identified as the threshold to guarantee acceptable air quality.
BUILDING AND ENVIRONMENT
(2021)
Article
Engineering, Civil
Xing Zheng, Hamid Montazeri, Bert Blocken
Summary: Pollutant dispersion in urban street canyons has been extensively studied using large-eddy simulation (LES). This study investigates the impact of domain width, height, upstream and downstream lengths on wind flow and pollutant dispersion in a generic 2.5D street canyon. The results suggest specific guidelines for domain sizes to improve simulation accuracy and reduce computational costs.
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
(2021)
Article
Environmental Sciences
Nelson Gouveia, Josiah L. Kephart, Iryna Dronova, Leslie McClure, Jose Tapia Granados, Ricardo Morales Betancourt, Andrea Cortinez O'Ryan, Jose Luis Texcalac-Sangrador, Kevin Martinez-Folgar, Daniel Rodriguez, Ana Diez-Roux
Summary: The study found that a significant proportion of the population in Latin American cities live in areas with air pollution levels above WHO standards. Larger cities, higher GDP, higher motorization rate, and congestion tend to have higher PM2.5 levels. On the other hand, areas with higher population density tend to have lower levels of PM2.5.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Construction & Building Technology
Chunping Miao, Wei Chen, Shuai Yu
Summary: This study investigated the vertical distribution of O-3 in urban street canyons and evaluated the influence of canyon morphology and microclimatic factors on O-3 distribution. The study found that O-3 concentrations were high in the canyons and significantly correlated with building height, aspect ratio, sky view factor, air temperature, and wind speed. The intensity of photochemical reactions played a more important role in O-3 distribution than dispersion.
Article
Construction & Building Technology
E. Brattich, F. Barbano, B. Pulvirenti, F. Pilla, M. Bacchetti, S. Di Sabatino
Summary: A research was conducted in the outskirts of Bologna, Italy, with intensive experiments on the abatement performance of photocatalytic coatings on NOx concentrations in street canyons. By comparing two parallel street canyons, it was found that the canyon coated with TiO2 had higher concentrations. Three independent methods demonstrated the photocatalytic reduction of NOx in the range of 14-21%, suggesting the potential effect of photocatalysis under real weather conditions.
BUILDING AND ENVIRONMENT
(2021)
Article
Public, Environmental & Occupational Health
Gerardo Sanchez Martinez, Michela Baccini, Koen De Ridder, Hans Hooyberghs, Wouter Lefebvre, Vladimir Kendrovski, Kristen Scott, Margarita Spasenovska
Article
Geosciences, Multidisciplinary
Hendrik Wouters, Koen De Ridder, Lien Poelmans, Patrick Willems, Johan Brouwers, Parisa Hosseinzadehtalaei, Hossein Tabari, Sam Vanden Broucke, Nicole P. M. van Lipzig, Matthias Demuzere
GEOPHYSICAL RESEARCH LETTERS
(2017)
Article
Environmental Sciences
Gerardo Sanchez Martinez, Julio Diaz, Hans Hooyberghs, Dirk Lauwaet, Koen De Ridder, Cristina Linares, Rocio Carmona, Cristina Ortiz, Vladimir Kendrovski, Raf Aerts, An Van Nieuwenhuyse, Maria Bekker-Nielsen Dunbar
ENVIRONMENT INTERNATIONAL
(2018)
Article
Environmental Sciences
Gerardo Sanchez Martinez, Julio Diaz, Hans Hooyberghs, Dirk Lauwaet, Koen De Ridder, Cristina Linares, Rocio Carmona, Cristina Ortiz, Vladimir Kendrovski, Dovile Adamonyte
ENVIRONMENTAL RESEARCH
(2018)
Article
Public, Environmental & Occupational Health
Richa Sharma, Hans Hooyberghs, Dirk Lauwaet, Koen De Ridder
JOURNAL OF URBAN HEALTH-BULLETIN OF THE NEW YORK ACADEMY OF MEDICINE
(2019)
Article
Meteorology & Atmospheric Sciences
Steven Caluwaerts, Sara Top, Thomas Vergauwen, Guy Wauters, Koen De Ridder, Rafiq Hamdi, Bart Mesuere, Bert Van Schaeybroeck, Hendrik Wouters, Piet Termonia
Summary: The majority of meteorological data is collected in open, rural environments according to World Meteorological Organization standards, but there is a lack of localized information for urban microclimates and other specific environments. Current high-accuracy initiatives are limited by budget constraints, highlighting the need for innovative approaches to fill observational gaps.
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2021)
Review
Green & Sustainable Science & Technology
Gabriele Lobaccaro, Koen De Ridder, Juan Angel Acero, Hans Hooyberghs, Dirk Lauwaet, Bino Maiheu, Richa Sharma, Benjamin Govehovitch
Summary: Urban analysis requires consideration of local climate conditions at different spatial scales to test artificial urban boundaries and climate hazards. High temperatures and intense solar radiation can increase thermal stress in urban environments. Using numerical models and tools can help evaluate urban planning and design choices to enhance urban space attractiveness and sustainability.
Article
Biodiversity Conservation
Viviana Ceccarelli, Marius Ekue, Tobias Fremout, Hannes Gaisberger, Chris Kettle, Hermann Taedoumg, Hendrik Wouters, Eline Vanuytrecht, Koen De Ridder, Evert Thomas
Summary: This study mapped the vulnerability of 100 priority tree species in Central Africa to various threats and proposed a spatially explicit strategy for restoration and conservation actions. The results showed that these species are vulnerable to multiple threats, with many species not considered threatened by the IUCN Red List. Species-specific maps and summary maps were generated to identify conservation and restoration priority areas.
BIOLOGICAL CONSERVATION
(2022)
Article
Environmental Sciences
Niels Souverijns, Koen De Ridder, Nele Veldeman, Filip Lefebre, Frederick Kusambiza-Kiingi, Wetu Memela, Nicholas K. W. Jones
Summary: This paper utilizes a numerical model to accurately simulate urban heat stress and provides high-resolution assessments. The study reveals that areas with high building densities and low vegetation numbers experience the greatest heat stress, and vegetation shade plays a crucial role in mitigating heat stress. These assessments contribute to the design of climate-resilient urban planning strategies.
Article
Environmental Sciences
Steven Caluwaerts, Rafiq Hamdi, Sara Top, Dirk Lauwaet, Julie Berckmans, Daan Degrauwe, Herwig Dejonghe, Koen De Ridder, Rozemien De Troch, Francois Duchene, Bino Maiheu, Michiel Van Ginderachter, Marie-Leen Verdonck, Thomas Vergauwen, Guy Wauters, Piet Termonia
Article
Meteorology & Atmospheric Sciences
Dirk Lauwaet, Bino Maiheu, Koen De Ridder, Wesley Boenne, Hans Hooyberghs, Matthias Demuzere, Marie-Leen Verdonck
Article
Environmental Sciences
Piet Termonia, Bert Van Schaeybroeck, Lesley De Cruz, Rozemien De Troch, Steven Caluwaerts, Olivier Giot, Rafiq Hamdi, Stephane Vannitsem, Francois Duchene, Patrick Willems, Hossein Tabari, Els Van Uytven, Parisa Hosseinzadehtalaei, Nicole Van Lipzig, Hendrik Wouters, Sam Vanden Broucke, Jean-Pascal Van Ypersele, Philippe Marbaix, Cecille Villanueva-Birriel, Xavier Fettweis, Coraline Wyard, Chloe Scholzen, Sebastien Doutreloup, Koen De Ridder, Anne Gobin, Dirk Lauwaet, Trissevgeni Stavrakou, Maite Bauwens, Jean-Francois Muller, Patrick Luyten, Stephanie Ponsar, Dries Van den Eynde, Eric Pottiaux
Article
Environmental Sciences
Hans Hooyberghs, Stijn Verbeke, Dirk Lauwaet, Helia Costa, Graham Floater, Koen De Ridder
Article
Environmental Sciences
Koen De Ridder, Bino Maiheu, Dirk Lauwaet, Ioannis A. Daglis, Iphigenia Keramitsoglou, Kostas Kourtidis, Paolo Manunta, Marc Paganini
Article
Environmental Sciences
D. Lauwaet, K. De Ridder, S. Saeed, E. Brisson, F. Chatterjee, N. P. M. van Lipzig, B. Maiheu, H. Hooyberghs
Article
Meteorology & Atmospheric Sciences
Vittal Hari, Oldrich Rakovec, Wei Zhang, Akash Koppa, Matthew Collins, Rohini Kumar
Summary: This study reveals a significant association between the Atlantic Meridional Mode (AMM) and temperature variability in the eastern European region. Positive AMM phase leads to a significant increase in temperature, while negative phase has the opposite effect. The AMM modulates the temperature through planetary-scale Rossby waves and anomalous anticyclone circulation.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Fang Cao, Yi-Xuan Zhang, Yan-Lin Zhang, Wen-Huai Song, Yu-Xian Zhang, Yu-Chi Lin, Chaman Gul, Md. Mozammel Haque
Summary: This study investigates the influences of continental emissions on marine aerosols in the Yellow Sea and Bohai Sea of China. The results show that biomass burning is the major contributor to organic aerosols in these marine atmospheres.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Chenxi Liao, Wenhua Gao, Lanzhi Tang, Chengyin Li
Summary: Based on ERA5 data, this study analyzed the characteristics of four hydrometeors and their relationship with precipitation intensity in central eastern China and the northwest Pacific Ocean. The results show that stratiform precipitation is dominated by ice processes, while convective precipitation has comparable contributions from water and ice processes.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Hsiang-Yu Huang, Sheng-Hsiang Wang, William K. M. Lau, Shih-Yu Simon Wang, Arlindo M. da Silva
Summary: This study presents a diagnostic analysis of the interannual variation of regional climate and its impact on biomass burning aerosol emissions in peninsular Southeast Asia (PSEA). It identifies four climatic factors governing the emission and transport of PSEA biomass burning aerosols and reveals a significant correlation with the El Nin similar to o-Southern Oscillation (ENSO). The results contribute to a better understanding and improved model simulations of aerosol-climate interactions in South and Southeast Asian monsoon regions.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Deniz H. Diren-Ustuen, Yurdanur S. Unal, Simge Irem Bilgen, Cemre Yuruk Sonuc, Sahar Sodoudi, Caner Guney, Ahmet Ozgur Dogru, Selahattin Incecik
Summary: This is the first comprehensive study to examine how urbanization affects the microclimate of Istanbul using the urban climate model MUKLIMO_3. The findings suggest that changing the albedo of roofs and implementing green-roofs can significantly reduce air temperatures in urban areas.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Yetong Li, Yan Xia, Fei Xie, Yingying Yan
Summary: Surface ozone, a major air pollutant, is influenced by stratosphere-troposphere exchange (STE) which contributes to both the decrease and increase of surface ozone in the Southern and Northern Hemispheres, respectively. Additionally, global warming is expected to worsen surface ozone pollution in the future.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Na Li, Ping Zhao, Changyan Zhou
Summary: In this study, the daily sensible and latent heat fluxes in the Tibetan Plateau are estimated using the maximum entropy production model. The results show good performance of the model and reveal the spatial distribution and trends of surface heat fluxes in the region.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Wenqing Lin, Huopo Chen, Weiqi Wang, Dawei Zhang, Fan Wang, Wuxia Bi
Summary: It is found in this study that anthropogenic activities may significantly contribute to the decrease in snowfall days, light snowfall, and light snowfall days across Eurasia, with greenhouse gas emissions being the main driver. However, detection of human influence is challenging for intense snowfall.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Chongxun Mo, Xingbi Lei, Xixi Mo, Ruli Ruan, Gang Tang, Lingguang Li, Guikai Sun, Changhao Jiang
Summary: Reliable precipitation information is crucial for scientific and operational applications. Open-access gridded precipitation products (OGPPs) are important sources due to their continuous spatiotemporal coverage. This study proposes a methodology to comprehensively compare the accuracies and stabilities of ten different OGPPs, particularly in mountainous basins. The results show high accuracy but unstable performance of all OGPPs, with multi-source fusion-type products offering better stability and accuracy. Multi-source weighted-ensemble precipitation and climate prediction center morphing method products exhibit the best comprehensive performance.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Jingzhuo Wang, Hanbin Zhang, Jing Chen, Guo Deng, Yu Xia
Summary: In this study, a new scale-blending technique was proposed to evaluate the impact of multiscale initial perturbations on the CMA-CPEPS. The results showed that the blended scheme improved the dispersion of dynamical variables and increased the ensemble spread of precipitation, leading to reduced forecast error.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Ziyi Song, Botao Zhou, Xinping Xu, Zhicong Yin
Summary: This study, based on reanalysis data from 1980 to 2019, reveals that the relationship between autumn sea ice concentration in the Barents-Kara Seas (BKSIC) and subsequent winter North Atlantic Oscillation (NAO) underwent an interdecadal weakening in the early 1990s. The weakening can be attributed to the decrease in the interannual variability of BKSIC, which leads to a discrepancy in the tropospheric warming. In the former period (1980-1993), the decrease in autumn BKSIC enhances tropospheric warming and weakens the circumpolar westerly, resulting in a negative NAO phase. However, in the latter period (1994-2019), the smaller interannual variability of BKSIC weakens its influence on the tropospheric temperature, diluting the relationship with the subsequent winter NAO.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Wogu Zhong, Zhiwei Wu
Summary: Significant phase shifts in winter surface air temperature (SAT) anomalies have occurred in East Asia in recent years, leading to detrimental effects on socio-economic activities. In this study, the fourth principal mode of month-to-month SAT variations over EA in winter was identified, representing subseasonal SAT reversals over the mid-high latitudes of EA during late winter. The formation of this mode is accompanied by stratospheric temperature anomalies over eastern Siberia-Alaska in January.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Weiqian Ji, Leiku Yang, Xinyao Tian, Muhammad Bilal, Xin Pei, Yu Zheng, Xiaofeng Lu, Xiaoqian Cheng
Summary: This study systematically evaluated the AOD products of the DB and MAIAC algorithms based on MODIS over bright surfaces, and investigated the underestimation of AOD affected by various factors. The results indicated that the MAIAC products performed better than DB, and the C6.1 MAIAC showed slight improvement compared to C6.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Tao Wang, Xiaohua Gou, Xuejia Wang, Hongwen Liu, Fei Xie
Summary: This study finds that the meridional position of subtropical jet anomalies has shifted equatorward in both the Northern Hemisphere and Southern Hemisphere since the 1960s due to the influence of ENSO. The changes in tropical SST anomalies associated with ENSO contribute to this equatorward shift.
ATMOSPHERIC RESEARCH
(2024)
Article
Meteorology & Atmospheric Sciences
Alireza Ghaderi Bafti, Arman Ahmadi, Ali Abbasi, Hamid Kamangir, Sadegh Jamali, Hossein Hashemi
Summary: Actual evapotranspiration (ETa) plays a crucial role in the water and energy cycles of the earth. This study develops an automated deep learning model for accurate estimation of ETa using image processing, architectural design, and hyper-parameter tuning. The proposed model shows promising results in different climatic regions, highlighting its potential for enhanced atmospheric research.
ATMOSPHERIC RESEARCH
(2024)
