Article
Geosciences, Multidisciplinary
Chongxun Mo, Yue Shen, Xingbi Lei, Huazhen Ban, Yuli Ruan, Shufeng Lai, Weiyan Cen, Zhenxiang Xing
Summary: This study simulates the evolution process of the dam-break flood in Chengbi River Reservoir under different breach conditions. The results include the peak discharge decay rates and water level decay rates for different breach scenarios. It is found that a 1-meter increase in bursting water level elevation leads to a 7% increase in peak flow, a 1-meter increase in the highest water level in front of the dam, and an average delay in peak time of 1.5 hours. The study also provides preliminary information on the extent of inundation in Baise City. These findings can serve as a basis for flood control and a reference for flood disaster management.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Asif Javed, Zakir Ullah Baig, Abida Farooqi
Summary: This study investigated water quality, specifically arsenic contamination, in the Punjab plains of Pakistan. Arsenic concentrations were found to be highest in well water from the Ravi River flood plain, posing potential health risks for consumers and long-term irrigation practices leading to arsenic accumulation in paddy soil. Salinity levels varied across geographic units, with lower levels in flood plains and higher levels in Doabs.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Computer Science, Interdisciplinary Applications
Amine Hanini, Abdelaziz Beljadid, Driss Ouazar
Summary: An unstructured numerical scheme was developed for modeling shallow water flows and solute transport over variable topography. A novel algorithm was introduced for variable density system reconstructions to guarantee positivity and well-balanced property, with performance tested on various numerical examples. The proposed method was proven to preserve positivity, stability, and accuracy in modeling dynamic water flow and scalar transport.
COMPUTERS & FLUIDS
(2021)
Article
Computer Science, Interdisciplinary Applications
Tomas Carlotto, Pedro Luiz Borges Chaffe, Camyla Innocente dos Santos, Seungsoo Lee
Summary: The study introduces a two-dimensional shallow water model SW2D-GPU accelerated by GPU, suitable for simulating flood and lake hydrodynamics. It is approximately 34 times faster than its sequential version and can run on computers equipped with NVIDIA GPU.
ENVIRONMENTAL MODELLING & SOFTWARE
(2021)
Article
Environmental Sciences
Abdurrahman Ufuk Sahin, Arzu Ozkaya
Summary: In this study, a framework was established to solve the problem of selecting a proper flood routing method. Two different multi-criteria decision analysis (MCDA) tools were employed, and definite decisive criteria such as error metrics, model parameters, and model background were considered. The results showed that both MCDA tools were compatible and provided similar model rankings. It was also found that empirical models with a high number of parameters performed better for single-peak hydrographs, while physical-based routing models with fewer parameters were more suitable for complex hydrographs with multiple peaks and irregular tails. This approach provides a comprehensive analysis for flood modelers to estimate the capabilities of commonly used Muskingum models.
Article
Engineering, Environmental
Okan Mert Katipoglu, Metin Sarigol
Summary: Flood routing models are crucial for predicting floods, preventing loss of life and property, and protecting agricultural areas. This study compares the performance of various machine learning models for flood routing prediction in Ankara, Eskisehir, and Sivas. The Gradient-Boosted Machine is found to be the most successful model for estimating flood routing.
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
(2023)
Review
Engineering, Civil
Wen-chuan Wang, Wei-can Tian, Dong-mei Xu, Kwok-wing Chau, Qiang Ma, Chang-jun Liu
Summary: River flood routing is a crucial aspect of water resources management, with the Muskingum model being the dominant method. This paper reviews the development and parameter estimation research status of the Muskingum model. The combination of mathematical techniques and evolutionary algorithms has shown promising results in recent years. The paper also provides an overview of accuracy evaluation criteria and research case data sets commonly used in the literature, and discusses challenges and future trends in Muskingum model research.
WATER RESOURCES MANAGEMENT
(2023)
Article
Geosciences, Multidisciplinary
Peter T. La Follette, Adriaan J. Teuling, Nans Addor, Martyn Clark, Koen Jansen, Lieke A. Melsen
Summary: The experiment generated a large number of hydrographs using various numerical techniques and found that root mean square error generally increases with precipitation intensity and decreases with event duration. Some numerical methods were found to constrain errors much more effectively than others, with a second-order adaptive explicit method identified as the most efficient.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2021)
Article
Engineering, Marine
Konstantin Matveev
Summary: This study demonstrates the implementation of an air-cavity system on a shallow-draft hull using computational fluid dynamics modeling. The hull of a displacement barge-type air-cavity boat is numerically modified to operate at higher speeds, and computational simulations are conducted at various speeds and center of gravity positions.
Article
Water Resources
B. Sridharan, Paul D. Bates, Dhrubajyoti Sen, Soumendra Nath Kuiry
Summary: Two-dimensional shallow water models are commonly used for flood risk assessment, but applying them to large urban areas can be costly due to the need for high-resolution simulations. To address this issue, researchers have proposed simplified models based on local-inertial formulations, with an unstructured grid-based model showing promise in overcoming limitations of structured grids and reducing computational costs.
ADVANCES IN WATER RESOURCES
(2021)
Article
Geosciences, Multidisciplinary
Qingyuan Yang, Tonghuan Liu, Jingjing Zhai, Xiekang Wang
Summary: The flash flood in Zhongdu river in China caused casualties and damage, highlighting the importance of sediment transport in flash flood impact. Numerical simulations based on real data reproduced flood processes and emphasized the significant impact of sediment transport on flood estimation.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Green & Sustainable Science & Technology
Jian Sun, Baizhong Yan, Yao Li, Huixiao Sun, Yahui Wang, Jiaqi Chen
Summary: This study evaluated the quality of shallow groundwater in the plains of Henan Province, China using hydrochemical analysis. The results showed that most areas have good groundwater quality, with only a small proportion of samples being classified as poor. The research suggests continuous monitoring and appropriate measures to prevent further degradation of the groundwater environment.
Article
Engineering, Civil
Shui-Hua Jiang, Huan-Le Zhi, Ze Zhou Wang, Shuai Zhang
Summary: This paper proposes an integrated framework for evaluating the flood risk caused by dike breaks and provides valuable information for engineers and policymakers. By combining numerical modeling and physics-informed analysis, the flood risks are accurately quantified and customized emergency evacuation plans are formulated for different areas. The study confirms that this framework effectively integrates numerical modeling, physics-informed analysis, and flood management, providing an enhanced decision-making process for flood warning and risk mitigation.
NATURAL HAZARDS REVIEW
(2023)
Article
Environmental Sciences
Shuang Liu, Panpan Guo, Xian Li, Kai Wang, Rui Tang, Yixian Wang
Summary: This study aims to investigate the settlement behavior of composite foundations with deep mixed piles in water-rich flood plains, which plays an important role in the serviceability and stability of subgrade and other infrastructures. The settlement behavior of the natural foundation is compared with that of the composite foundation through three-dimensional finite difference analysis. The effects of various key factors, such as pile length, diameter, spacing, pile elasticity modulus, cushion elasticity modulus, and cushion thickness, on the settlement behavior of the composite foundation are captured through single factor sensitivity analysis and multi-factor orthogonal experimental design.
Article
Engineering, Marine
Peng-Bo Zheng, Zhou-Hao Zhang, Hong-Sheng Zhang, Xue-Yi Zhao
Summary: A numerical model is proposed to simulate the nonlinear wave propagation and wave breaking phenomena from deep to shallow water. The model uses suitable governing equations with added momentum equations to simulate wave breaking. The model discretizes the spatial derivatives of the governing equations using a hybrid scheme and reorganizes non-conservative equations as conservative equations to use a total variation diminishing scheme. Extensive numerical tests show reasonable and reliable results, indicating the model's effectiveness in simulating wave breaking.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Water Resources
Pierre M. Kabuya, Denis A. Hughes, Raphael M. Tshimanga, Mark A. Trigg, Paul Bates
Summary: The regional characteristics of a sub-basin's long-term hydrological behavior are used as constraints to improve hydrological model simulations in the Congo Basin. Implementation of an adjustment factor based on slope can improve poor results, and the percentage of simulated data falling within the uncertainty range has increased.
ADVANCES IN WATER RESOURCES
(2022)
Review
Mechanics
Paul D. Bates
Summary: This review examines recent progress in mapping flood risk areas by combining appropriate physics, efficient numerical algorithms, big data sources, and model automation frameworks. It discusses the fluid mechanics and models used to predict inundation, as well as the developments in the last five years that have led to the creation of the first true fluid mechanics models of flooding over the entire terrestrial land surface.
ANNUAL REVIEW OF FLUID MECHANICS
(2022)
Editorial Material
Green & Sustainable Science & Technology
Paul Bates
Summary: A study shows that flooding has a disproportionate impact on disadvantaged communities and specific ethnic groups. Modelling techniques now enable the mapping of flood risk even down to the street or building level.
NATURE SUSTAINABILITY
(2023)
Article
Environmental Sciences
Simbidzayi Hatchard, Rafael J. P. Schmitt, Francesca Pianosi, James Savage, Paul Bates
Summary: Dams and reservoirs have both positive and negative impacts on economic development. They fragment rivers and disrupt connectivity, but can also regulate discharge regimes and reduce flood impacts. Strategic planning is crucial in finding a balance between these impacts. This study presents a method to optimize the siting and design of dams in a data-scarce basin to minimize trade-offs between hydropower generation and downstream flood impacts.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Computer Science, Interdisciplinary Applications
D. Satyaprasad, Soumendra Nath Kuiry, S. Sundar
Summary: In this study, a shock-capturing meshless method is proposed for simulating one-dimensional flows with highly variable topography. The proposed method uses the HLL Riemann solver for computing the convective flux and a weighted least square approximation for spatial derivatives. The method is tested for various challenging problems and experiments, demonstrating its high accuracy.
JOURNAL OF HYDROINFORMATICS
(2023)
Review
Geochemistry & Geophysics
Keighobad Jafarzadegan, Hamid Moradkhani, Florian Pappenberger, Hamed Moftakhari, Paul Bates, Peyman Abbaszadeh, Reza Marsooli, Celso Ferreira, Hannah L. Cloke, Fred Ogden, Qingyun Duan
Summary: The scientific community has made significant efforts in simulating flooding conditions, but the current models still lack accuracy and reliability. It is suggested to adopt an approach that considers various factors and enhance understanding of flood generating mechanisms. Developing innovative earth system modeling frameworks and conducting rigorous studies can provide opportunities to improve flood prediction and mapping.
REVIEWS OF GEOPHYSICS
(2023)
Article
Environmental Sciences
Michael Durand, Colin J. Gleason, Tamlin M. Pavelsky, Renato Prata de Moraes Frasson, Michael Turmon, Cedric H. David, Elizabeth H. Altenau, Nikki Tebaldi, Kevin Larnier, Jerome Monnier, Pierre Olivier Malaterre, Hind Oubanas, George H. Allen, Brian Astifan, Craig Brinkerhoff, Paul D. Bates, David Bjerklie, Stephen Coss, Robert Dudley, Luciana Fenoglio, Pierre-Andre Garambois, Augusto Getirana, Peirong Lin, Steven A. Margulis, Pascal Matte, J. Toby Minear, Aggrey Muhebwa, Ming Pan, Daniel Peters, Ryan Riggs, Md Safat Sikder, Travis Simmons, Cassie Stuurman, Jay Taneja, Angelica Tarpanelli, Kerstin Schulze, Mohammad J. Tourian, Jida Wang
Summary: The Surface Water and Ocean Topography (SWOT) mission will expand global river measurements, providing new data sets for both gaged and ungaged basins. SWOT discharge will be computed from measurements of water elevation, width, and slope, and is expected to have an accuracy of less than 30%, with systematic bias as the dominant uncertainty component.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Raman Balireddy, Anjan Chakravorty, S. Murty Bhallamudi, S. Nath Kuiry
Summary: Expansion and reorganization of water distribution networks by connecting sub-networks via single or multiple pipes are common practices in developing cities. A new network reduction methodology is developed for multi-port connections using the analogy between electrical circuits and hydraulic networks. The proposed methodology reduces the number of network elements significantly compared to existing water distribution network reduction methods. It has the potential to reorganize and expand large existing network systems and can be of great utility for hydraulic engineers.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Gang Zhao, Paul D. D. Bates, Jeff Neal, Dai Yamazaki
Summary: We propose a machine learning-based approach to estimate the flood defense standard (FDS) for unlabeled sites. RFR performed better than MLR in characterizing the relationship between FDS and explanatory factors. RFR revealed river flood factors had higher importance and achieved the highest performance using all factors for prediction.
WATER RESOURCES RESEARCH
(2023)
Article
Meteorology & Atmospheric Sciences
H. C. Bloomfield, J. Hillier, A. Griffin, A. L. Kay, L. C. Shaffrey, F. Pianosi, R. James, D. Kumar, A. Champion, P. D. Bates
Summary: This study systematically investigates the correlations between wintertime extremes of wind and flooding, and finds strong positive correlations between wind gusts and precipitation, as well as between wind gusts and river flows at specific timescales. A new flood severity index (FSI) is developed to provide actionable information for insurers and other stakeholders. The study also highlights the potential impact of climate change on severe flood-wind episodes.
WEATHER AND CLIMATE EXTREMES
(2023)
Article
Geosciences, Multidisciplinary
Youtong Rong, Paul Bates, Jeffrey Neal
Summary: An accurate estimation of river channel conveyance capacity and water exchange at river-floodplain interfaces is crucial for flood modeling. However, limited grid resolution in large-scale models often leads to the inability to represent small-scale river channel features effectively, resulting in instability and poor approximation of flow connectivity. To address this, a subgrid channel (SGC) model based on the local inertial form of shallow water equations has been proposed, but previous approaches lacked the latest developments in numerical solutions and suffered from numerical instability in low-friction regions. In this paper, a newly developed diffusion and explicit adaptive weighting factor are implemented in the SGC model, resulting in improved model performance, especially in urban areas with low Manning parameter.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2023)
Article
Geosciences, Multidisciplinary
Mohammad Kazem Sharifian, Georges Kesserwani, Alovya Ahmed Chowdhury, Jeffrey Neal, Paul Bates
Summary: This paper introduces new releases on LISFLOOD-FP 8.1 for parallel flood simulations. The parallelized ACC solver has been implemented on GPUs to improve computational efficiency and a new non-uniform grid version has been introduced. The non-uniform solver generates grids using multiresolution analysis and allows proper adaptation of land use. The GPU implementation of both uniform and non-uniform solvers shows significant speed improvements compared to the CPU predecessor.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2023)
Article
Geosciences, Multidisciplinary
Paul D. Bates, James Savage, Oliver Wing, Niall Quinn, Christopher Sampson, Jeffrey Neal, Andrew Smith
Summary: We propose a climate-conditioned catastrophe flood model for the UK, providing hazard layers for different return periods and simulating flood risks under various climate conditions. The model is validated against historical data and accurately predicts flood losses. Our findings suggest that implementing carbon emission reduction pledges can significantly mitigate future flood losses in the UK.
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Yinxue Liu, Paul D. Bates, Jeffery C. Neal
Summary: This paper investigates the use of two morphological filters to remove surface artefacts from ArcticDEM and generate a bare-earth version of it. The results show that the simple morphological filter (SMRF) is more effective than the progressive morphological filter (PMF) in removing artefacts. This suggests that high-resolution satellite photogrammetric DEMs could be used for flood simulation in areas where lidar DTMs are not available.
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Maria Pregnolato, Andrew O. Winter, Dakota Mascarenas, Andrew D. Sen, Paul Bates, Michael R. Motley
Summary: Flood events cause the most damage to infrastructure compared to other natural hazards, and global changes are likely to increase this damage. This study aims to establish a rigorous modeling approach for assessing the hydrodynamic forces on flooded bridges and understanding the consequences on the surrounding network. Using the case study of Carlisle in the UK, the impact of hydrodynamic forces on the performance and functionality of the transport network is discussed. This research will bridge the gap between current guidance for designing and assessing bridges in the overall transport system.
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2022)
