Article
Engineering, Civil
Yejia Qiang, Limin Zhang, Jian He, Te Xiao, Honghao Huang, Haojie Wang
Summary: This study evaluates flood hazards in coastal cities, considering interactions of factors like rainfall, sea level rise, and storm surges. By proposing an equivalent drainage method, the research provides insights for urban drainage design and flood prevention strategies under various weather conditions.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Prasanth Valayamkunnath, David J. Gochis, Fei Chen, Michael Barlage, Kristie J. Franz
Summary: Subsurface tile drainage (TD) is a common practice in improving crop production in poorly drained soils, but there is a lack of understanding about its regional impact on hydrology. This study incorporated a TD scheme into the National Water Model (NWM) and found that it improved the model's performance in heavily tile-drained areas. The TD scheme increased streamflow peaks, volume, and baseflow, while reducing surface runoff, groundwater recharge, evapotranspiration, and soil moisture content. These findings highlight the importance of considering TD in hydrological models.
WATER RESOURCES RESEARCH
(2022)
Article
Engineering, Environmental
Burak Cirag, Mahmut Firat
Summary: In recent years, severe flooding has occurred in urban, coastal, and river areas. This flooding is worsened by climate change, urbanization, population growth, and increased impervious surfaces in cities. Effective stormwater drainage systems are essential to mitigate urban flooding. This study used geographic information systems and InfoWorks ICM to analyze and calibrate the flood performance of stormwater drainage systems in the central region of Malatya. The results showed that the current systems may pose risks to residential areas and that flooding severity increases with longer return periods.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Geography
Livia Rodrigues Tomas, Giovanni Guarnieri Soares, Aurelienne A. S. Jorge, Jeferson Feitosa Mendes, Vander L. S. Freitas, Leonardo B. L. Santos
Summary: The article proposes a method for creating urban flood risk maps using hydrological and mobility data, with the megacity of Sao Paulo, Brazil, as a case study. By estimating flood susceptibility through the Height Above the Nearest Drainage algorithm and assessing potential impact through exposure and vulnerability components, the cells are classified into moderate, high, and very high categories. The flood susceptibility component, reflecting the presence of watercourses, plays a significant role in determining the location of cells classified as very high risk.
TRANSACTIONS IN GIS
(2022)
Article
Geosciences, Multidisciplinary
Gaurav Talukdar, Janaki Ballav Swain, Kanhu Charan Patra
Summary: This study utilized a continuous hydrologic-hydraulic model to map flood caused by the Baitarani River in Odisha, India, and relied on the HEC-HMS and FLO-2D models to assess the extent of flooding.
Article
Environmental Sciences
Harris Vangelis, Ioanna Zotou, Ioannis M. Kourtis, Vasilis Bellos, Vassilios A. Tsihrintzis
Summary: This study compares the design storm approach with rainfall-runoff continuous simulation and flood frequency analysis to investigate the relationship between rainfall return periods and flood return periods. The results show that the assumption of equivalent return periods of rainfall and discharge is not valid for the study area. Continuous simulation based on re-analysis datasets and flood frequency analysis can be used as an alternative even if flow measurements are not available.
Article
Engineering, Civil
Yun Xing, Dong Shao, Qiuhua Liang, Huili Chen, Xieyao Ma, Irfan Ullah
Summary: This paper proposes a novel approach for incorporating drainage loss effects into two-dimensional hydrodynamic overland flow simulations, and validates the feasibility and effectiveness of this method through field observations during severe flood events in an intensely urbanized area. The study reveals that drainage effects are crucial for urban flood patterns and low-lying areas with dense building complexes benefit more from these effects in a distributed manner. Additionally, variations in flood flows caused by drainage effects at inlets are observed to depend on the surrounding environment, highlighting the importance of considering both drainage effects and gravity effects in flood modeling.
JOURNAL OF HYDROLOGY
(2022)
Article
Geosciences, Multidisciplinary
Song-Yue Yang, Che-Hao Chang, Chih-Tsung Hsu, Shiang-Jen Wu
Summary: This study investigates the impact of drainage density on river flow using a 1D-2D model, and assesses the uncertainty of drainage density in flood hazard mapping through case studies. The results show that lower drainage density leads to underestimation of flooded area in tributaries and increases peak discharges and total volume of discharges. For extreme rainfall events, a lower drainage density can be selected, but the drainage density of local key areas should be increased.
Article
Computer Science, Interdisciplinary Applications
Marco A. Torres, Jose F. Chavez-Cifuentes, Eduardo Reinoso
Summary: This paper presents a simplified flood model based on cellular automata for simulating a large number of flood scenarios. The model evaluates the flow process in DEM cells from top to bottom, classifying the cells into four different states. The quality and efficiency of the model are evaluated using benchmarking tests and compared with other 2D models.
ENVIRONMENTAL MODELLING & SOFTWARE
(2022)
Article
Multidisciplinary Sciences
Ashish Sharma, Suresh Hettiarachchi, Conrad Wasko
Summary: The warming planet is causing changes in extreme storms and floods, requiring better hydrologic design guidelines. This paper summarizes these changes and their impact on design flood magnitude, focusing on urban catchments. Two lines of reasoning are used to assess and model changes in design hydrology, discussing limitations and interrelations between the two methods. Theoretical narratives linking the two are presented, emphasizing the need for climate model projections in future predictions.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2021)
Article
Water Resources
Yejia Qiang, Jian He, Te Xiao, Wenjun Lu, Jinhui Li, Limin Zhang
Summary: This study aims to develop a flood analysis model to integrate multiple flooding triggers and investigate coastal flood hazards at the street scale in urban areas. The research shows the key role of drainage facilities in mitigating flooding induced by wave overtopping, and the effectiveness of a 1.1 m wave wall in reducing overtopping discharge, flooding severity, and dangerous zones for pedestrians.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2021)
Article
Water Resources
Tariq Chibane, Andre Paquier, Saadia Benmamar
Summary: The study investigates flow patterns in a street, finding that overflow significantly increases streamwise velocity and turbulence, which could validate CFD models for various flooding conditions.
URBAN WATER JOURNAL
(2021)
Article
Environmental Sciences
Allan Sriratana Tabucanon, Kiyo Kurisu, Keisuke Hanaki
Summary: This study focused on climate change-induced floods in tropical urban areas, and developed various flood mitigation strategies through interdisciplinary integration and model predictions. The research emphasized the importance of combining structural and non-structural measures to effectively reduce flood damage, especially in dealing with uncertain climate change scenarios.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Felipe Quintero, Nicolas Velasquez
Summary: This paper introduces the HLM-Tetis model structure and its improvements over the previous HLM model structure. By adding modules to simulate snow processes, improving flexibility in simulating infiltration and percolation, and enhancing flexibility in deriving total runoff, the model has been applied to flood events in five basins in Iowa where previous model structures had limitations.
Article
Environmental Sciences
Lisa M. Harrison, Tom J. Coulthard, Peter E. Robins, Matthew J. Lewis
Summary: This study addresses the sensitivity of estuaries in the UK to extreme fluvial and surge-tide events, revealing significant differences between different estuaries and projecting potential changes in compound flooding hazards in the future.
ESTUARIES AND COASTS
(2022)
Article
Engineering, Civil
Roberto Fernandez, Alejandro J. Vitale, Gary Parker, Marcelo H. Garcia
Summary: The experimental analysis showed that hydraulic resistance in a mixed bedrock-alluvial channel changes with the degree of alluviation, with greater resistance for bare-bedrock conditions but decreasing as sediment supply increases. Bedforms may lead to increased resistance due to form drag, and fluctuations in alluvial cover can result in instantaneous changes in hydraulic resistance.
JOURNAL OF HYDRAULIC RESEARCH
(2021)
Article
Geography, Physical
Taylor Rowley, Kory Konsoer, Eddy J. Langendoen, Zhi Li, Mick Ursic, Marcelo H. Garcia
Summary: This study analyzes the morphology of twelve point bars in the Pearl and Wabash rivers, revealing differences between the two river reaches in terms of channel curvature, migration rates, and bend migration modes. Additionally, distinct transverse bar profile distributions were observed along the bars in each reach. The synthetic morphologic data generated using a curvature-driven model showed reasonable agreement with field observations, with differences attributed to natural river system variability not captured by the model.
Article
Mathematics, Applied
Parnian Hosseini, Nathan L. Gibson, Duan Chen, Arturo S. Leon
Summary: This study explores optimal control under input uncertainties that cannot be accurately quantified, proposing a framework that incorporates decision flexibility as an additional objective to balance between flexibility and achieving operational objectives, utilizing uncertainty quantification techniques to compute expected values of objectives. A clear trade-off is identified between the amount of flexibility for decision variables and the expected values of other objectives.
INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS
(2021)
Article
Environmental Sciences
Linlong Bian, Assefa M. Melesse, Arturo S. Leon, Vivek Verma, Zeda Yin
Summary: This paper introduces a deterministic topographic wetland index for delineating wetland inundation areas without supervised classification. Compared with other methods, the proposed index shows the highest overall accuracy in wetland delineation.
Article
Chemistry, Multidisciplinary
Li Qin, Qi-Lei Cao, Arturo S. Leon, Ying-Na Weng, Xu-Hua Shi
Summary: This study investigates the spatiotemporal characteristics of drivers' visual behavior in different luminance levels in a tunnel. Results show that luminance levels significantly impact pupil areas and fixation zones. Drivers tend to focus on the front road pavement, top wall surface, and control wheels under different luminance levels.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Li Qin, Antonio Pena-Garcia, Arturo S. Leon, Jian-Cheng Yu
Summary: This study evaluated four tunnel lighting control strategies and their associated technologies, finding that initial investment costs increase with tunnel length, and electricity costs increase differently for each control strategy.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Mechanical
Sumit R. Zanje, Linlong Bian, Vivek Verma, Zeda Yin, Arturo S. Leon
Summary: This study investigates the relationship between pipe leakage location and siphon break phenomenon through simulation and analysis. The results show that leakage above the hydraulic grade line and close to the top inverted U section of the siphon pipe is most likely to cause siphon breakage, while leakage below the hydraulic grade line does not lead to siphon breakage. In addition, when the leakage position is far away from the upper horizontal section of the siphon pipe, air is removed from the siphoning water, allowing more time for complete siphon breakage.
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Environmental Sciences
Eduardo Carrion-Coronel, Pablo Ortiz, Leonardo Nania
Summary: This study experimentally and numerically analyzes the hydraulic operation of transverse bottom racks screens with conventional triangular wedge wire and alternative circular section wire. The influence of geometric variables on the captured flow is evaluated, and the efficiency of the screens in terms of collection capacity and sediment removal is determined.
Article
Engineering, Marine
Hamid Maleki, Mohammad Reza Safaei, Arturo S. Leon, Taseer Muhammad, Truong Khang Nguyen
Summary: This study investigates the effects of perforation geometry on laminar airflow and heat transfer characteristics in a perforated plate-fin heat sink. The results show that circular perforations achieve the highest efficiency, while square perforations can reach the maximum size, leading to an optimal configuration. Additionally, changing the shape and size of the perforations significantly improves heat transfer performance and heat sink efficiency.
JOURNAL OF OCEAN ENGINEERING AND SCIENCE
(2022)
Article
Optics
Li Qin, Shiyong He, Deshan Yang, Arturo S. Leon
Summary: This study describes a method to calculate perceived luminance in a tunnel interior lighting environment by considering the visual target color and spectra of light sources. The findings show that the yellow surface target has the highest mesopic luminance for the specified light source.
Article
Engineering, Civil
Duan Chen, Arturo Leon, Ruonan Li, Rui Han
Summary: Quantitative comparisons of different reservoir operation schemes were conducted to provide suggestions for decision making and promote new planning tools. Four reservoir operation schemes were considered and evaluated under typical hydrological years. The progressive improvement from rule-curve-based setup to single-objective optimisation setup, then bi-objective optimisation setup and finally many-objective optimisation setup was observed. The many-objective optimisation setup provided a comprehensive perspective on reservoir operation and offered the most options for decision making.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WATER MANAGEMENT
(2023)
Article
Construction & Building Technology
L. Qin, D-S Yang, Y-N Weng, A. S. Leon, X-H Shi
Summary: This study presents the results of a driving experiment on the spatiotemporal characteristics of drivers' fixation when entering a tunnel portal at different driving speeds. The results demonstrate that vehicle speed significantly impacts the pupil area and fixation zones of drivers, with drivers focusing more on the tunnel entrance, road pavement, and car control wheel.
LIGHTING RESEARCH & TECHNOLOGY
(2023)
Proceedings Paper
Engineering, Environmental
Linlong Bian, Vivek Verma, Aditia Rojiali, Dogukan Ozecik, Arturo S. Leon
Summary: This paper investigates the operational reliability assessment of a remotely controlled siphon system and suggests that increasing the safety factor for vulnerable components can enhance the system's availability. Through simulation and analysis, a suitable architecture for the siphon system is proposed.
WORLD ENVIRONMENTAL AND WATER RESOURCES CONGRESS 2021: PLANNING A RESILIENT FUTURE ALONG AMERICA'S FRESHWATERS
(2021)
Proceedings Paper
Engineering, Environmental
Linlong Bian, Vivek Verma, Jianwei Li, Sumit R. Zanje, Alexis Vento, Ligia Filgueiras, Dogukan Ozecik, Arturo S. Leon, Biayna Bogosian, Stuart Grant
Summary: This study investigates the feasibility of using rainwater as an alternative water source for cooling tower makeup. Water quality analysis shows that rainwater has a lower total dissolved solids concentration than tap water, which can increase the cycles of concentration and reduce tap water usage, resulting in economic benefits. The study also examines the application of remote control technology.
WORLD ENVIRONMENTAL AND WATER RESOURCES CONGRESS 2021: PLANNING A RESILIENT FUTURE ALONG AMERICA'S FRESHWATERS
(2021)
Proceedings Paper
Engineering, Environmental
Vivek Verma, Linlong Bian, Dogukan Ozecik, Surya Srikar Sirigineedi, Arturo Leon
Summary: Remote operations, utilizing solar power and controlled through 4G/5G networks, hold great potential in water resource management, allowing for remote monitoring and release of water in storage units. The methodology has been proven reliable through laboratory experiments, offering convenience and practicality in civil and environmental engineering applications.
WORLD ENVIRONMENTAL AND WATER RESOURCES CONGRESS 2021: PLANNING A RESILIENT FUTURE ALONG AMERICA'S FRESHWATERS
(2021)