Article
Environmental Sciences
John Pitlick, Alain Recking, Fred Liebault, Clement Misset, Guillaume Piton, Daniel Vazquez-Tarrio
Summary: Global compilations of river sediment loads show that mountainous areas contribute significantly to the sediment transported to the oceans. This study focused on estimating the contemporary sediment loads of 16 gravel bed rivers draining the Ecrins-Pelvoux Massif in southeast France. The results indicate a linear relationship between bed load fluxes at channel-forming flows and downstream increases in discharge, as well as a linear scaling of annual sediment loads with drainage area.
WATER RESOURCES RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Paolo Billi, Velibor Spalevic
Summary: This study utilized suspended sediment yield field data measured by the national and regional hydrological services to investigate the factors influencing sediment yield in Italy. The research found a wide variation in sediment yield and attributed the marked decrease in sediment yield in Italy to factors such as reduced annual precipitation and forest expansion.
Article
Engineering, Civil
Teresa Serra, Marianna Soler, Aina Barcelona, Jordi Colomer
Summary: Sediment-replenished artificial flooding results in a more balanced suspended sediment transport compared to non-sediment-replenishment cases, with higher sedimentation rates during flood events.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Anna Maria De Girolamo, Giovanni Francesco Ricci, Ossama M. M. Abdelwahab, Antonio Lo Porto, Fabio Milillo, Addolorata Maria Netti, Francesco Gentile
Summary: This study quantified suspended sediment loads in two mountainous river basins. The findings revealed that over 80% of the sediment load was transported during high-flow conditions, while less than 1% was transported during low-flow conditions.
Article
Environmental Sciences
Hyoseob Noh, Yong Sung Park, Il Won Seo
Summary: Sediment transport load monitoring is important in civil and environmental engineering fields. This study proposes estimation models for the suspended-to-total load fraction using dimensionless hydro-morphological variables, and reveals the relations between them using symbolic regression methods. Clustering analyses help identify the underlying relationships between variables. These models are practical and easy to implement in other suspended sediment monitoring methods.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Hyoseob Noh, Yong Sung Park, Il Won Seo
Summary: Sediment transport load monitoring is important in civil and environmental engineering. This study proposes estimation models for the suspended-to-total load fraction using dimensionless hydro-morphological variables. The models were developed through feature elimination and symbolic regression methods. Clustering analysis and sensitivity analysis were also conducted for a deeper understanding of variable relationships.
WATER RESOURCES RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Ebenezer Boakye, F. O. K. Anyemedu, Emmanuel A. Donkor, Jonathan A. Quaye-Ballard
Summary: Accurate information on sediment yield in the Pra River Basin, Ghana is crucial for proper catchment and water resources management. This study found high sediment yields in the basin, with significant differences between contributing drainage basins. Rivers in galamsey prone basins had higher sediment pollution levels. The study highlights the importance of considering land use activities and catchment characteristics in predicting sediment yield variations.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2022)
Article
Geosciences, Multidisciplinary
Ty Sok, Chantha Oeurng, Vinhteang Kaing, Sabine Sauvage, G. Mathias Kondolf, Jose Miguel Sanchez-Perez
Summary: This study analyzed sediment loads in the Mekong River from 1993 to 2018 and found that Tonle Sap Lake has become a sink for sediment since 2001, accumulating a significant amount annually. This has reduced the annual sediment transport to the delta, exacerbating the effects of reduced sediment delivery resulting from upstream dam development and instream sand mining.
Article
Environmental Sciences
David K. Ralston, Brian Yellen, Jonathan D. Woodruff
Summary: Observations and modeling were used to assess the potential impacts of sediment releases from dam removals on the Hudson River estuary. It was found that the main sediment load comes from side tributaries, and fine-grained sediment deposits spread broadly along the estuary while coarser sediment deposits near the source, with transport distance inversely related to settling velocity.
ESTUARIES AND COASTS
(2021)
Article
Environmental Sciences
John Gardner, Tamlin Pavelsky, Simon Topp, Xiao Yang, Matthew R. Ross, Sagy Cohen
Summary: Humans have significantly disrupted the global sediment cycle, affecting river morphology and ecosystems. Based on satellite observations from 1984 to 2018, the RivSed database provides a spatially explicit view of river sediment, revealing declining trends in sediment concentration in 32% of US rivers. Most rivers show decreasing sediment concentration downstream, primarily due to large dams. Comparing observations with models, there are differences in longitudinal sediment concentration patterns. RivSed has important implications for river geomorphology and ecology, illustrating human impacts on US river corridors.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Rafael J. P. Schmitt, Noah Kittner, G. Mathias Kondolf, Daniel M. Kammen
Summary: This study demonstrates how integrating energy systems modeling and strategic hydropower planning can resolve conflicts between renewable energy and dam impacts on rivers, presenting alternative futures that rely less on hydropower to minimize impact on rivers and reduce system costs. Our results highlight specific opportunities for Myanmar and demonstrate global techno-ecological synergies between climate action, equitable human development, and conservation of riparian ecosystems and livelihoods.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Geography, Physical
Andrew J. Neverman, Mitchell Donovan, Hugh G. Smith, Anne-Gaelle Ausseil, Christian Zammit
Summary: Soil is a critical resource that supports ecosystem services and human needs. Land degradation processes such as erosion and increased sediment loads impact downstream environments. Existing erosion and sediment load models are inadequate for assessing the effects of climate change. A new modelling framework is introduced that estimates sediment load changes under future climate conditions and highlights the importance of recognizing spatial variations in erosion processes and catchment loads.
Article
Environmental Sciences
Sagy Cohen, Jaia Syvitski, Thomas Ashely, Roderick Lammers, Balazs Fekete, Hong-Yi Li
Summary: Bedload is difficult to measure and model, and its dynamics in most fluvial systems worldwide remain unknown. This study presents a global scale bedload flux model that predicts the distribution of water discharge, suspended sediment, and bedload, and analyzes the sensitivity of bedload predictions to various factors. The results show that river discharge and slope are the key drivers of bedload trends.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Shiyu Wang, Rolf D. Vogt, Jacob Carstensen, Yan Lin, Jianfeng Feng, Xueqiang Lu
Summary: The study found that in estuaries, the adsorption of DIP onto suspended sediments is greater than desorption, and the net adsorption increases with higher concentrations of suspended sediments and salinity. This means that adsorption reduces the riverine discharge of DIP to coastal ecosystems.
Article
Engineering, Multidisciplinary
Nannan Zhao, Alireza Ghaemi, Chengwen Wu, Shahab S. Band, Kwok-Wing Chau, Atef Zaguia, Majdi Mafarja, Amir H. Mosavi
Summary: Estimation of suspended sediment load (SSL) is crucial for water resources management, with the ITD-EPR method proving to be the most accurate in predicting SSL at the Sarighamish and Varand Stations in Iran. This method outperformed other approaches like MT and SRC, showcasing its superior predictive capabilities.
ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
(2021)
Article
Marine & Freshwater Biology
Ariadna Mecho, Jacopo Aguzzi, Ben De Mol, Galderic Lastras, Eva Ramirez-Llodra, Nixon Bahamon, Joan B. Company, Miquel Canals
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
(2018)
Article
Environmental Sciences
Joan A. Salvado, Joan O. Grimalt, Jordi F. Lopez, Albert Palanques, Miquel Canals
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
William P. de Haan, Anna Sanchez-Vidal, Miquel Canals, David Amblas, Anna Ayma, Antoni Calafat, Marc Cerda-Domenech, Rut Pedrosa-Pamies, Xavier Rayo, Aitor Rumin-Caparros, Judit Tomer
MARINE POLLUTION BULLETIN
(2019)
Article
Environmental Sciences
Mel Constant, Philippe Kerherve, Morgan Mino-Vercellio-Verollet, Marc Dumontier, Anna Sanchez Vidal, Miguel Canals, Serge Heussner
MARINE POLLUTION BULLETIN
(2019)
Article
Geography, Physical
Merce Cisneros, Isabel Cacho, Jaime Frigola, Anna Sanchez-Vidal, Antoni Calafat, Rut Pedrosa-Pamies, Aitor Rumin-Caparros, Miguel Canals
GLOBAL AND PLANETARY CHANGE
(2019)
Editorial Material
Oceanography
Miguel Canals, Roberto Danovaro, Gian Marco Luna
PROGRESS IN OCEANOGRAPHY
(2019)
Article
Environmental Sciences
Aaron Alorda-Kleinglass, Jordi Garcia-Orellana, Valenti Rodellas, Marc Cerda-Domenech, Antonio Tovar-Sanchez, Marc Diego-Feliu, Giada Trezzi, David Sanchez-Quilez, Anna Sanchez-Vidal, Miquel Canals
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Pedro Antonio Arnau, Naeria Navarro, Javier Soraluce, Jose Maria Martinez-Iglesias, Jorge Illas, Eugenio Onate
Article
Multidisciplinary Sciences
Albert G. Selles, Alejandro Blanco, Bernat Vila, Josep Marmi, Francisco J. Lopez-Soriano, Sergio Llacer, Jaime Frigola, Miquel Canals, Angel Galobart
SCIENTIFIC REPORTS
(2020)
Article
Multidisciplinary Sciences
Lisa Weiss, Wolfgang Ludwig, Serge Heussner, Miguel Canals, Jean-Francois Ghiglione, Claude Estournel, Mel Constant, Philippe Kerherve
Summary: Research shows that the amount of microplastics discharged by rivers has been overestimated by two to three orders of magnitude, leading to a significant reduction in the theoretical need for a missing sink that could explain the rapid removal of plastics from the ocean surface.
Article
Environmental Sciences
Cristina Gambi, Miquel Canals, Cinzia Corinaldesi, Antonio Dell'Anno, Elisabetta Manea, Antonio Pusceddu, Anna Sanchez-Vidal, Roberto Danovaro
Summary: Industrial seabed mining can have significant impacts on marine ecosystems, including physical disturbance and the generation of toxin-laden water. A field experiment conducted in Portman Bay showed that mine tailings resuspension and deposition led to a decline in prokaryotic abundance and nematode biodiversity, as well as changes in biogeochemical cycles and accelerated carbon degradation rates.
ENVIRONMENTAL POLLUTION
(2022)
Editorial Material
Multidisciplinary Sciences
Lisa Weiss, Wolfgang Ludwig
Summary: The authors of this article refute the claims made by Mai et al. that their calculations on the residence time of floating microplastic at the ocean surface were incorrect and that their results were not novel. The authors argue that a closer examination of their methods and field-measured data proves the validity of their research.
Article
Geochemistry & Geophysics
Thore F. F. Sager, Morelia Urlaub, Pauline Kaminski, Cord Papenberg, Galderic Lastras, Miquel Canals, Christian Berndt
Summary: Submarine landslides can cause destruction to seafloor infrastructures and trigger devastating tsunamis. This study re-analyzes a relatively small landslide near the Balearic Islands using high-resolution 3D reflection seismic data, providing detailed images of the landslide structure. The study reveals that the landslide is composed of source areas, translational domains, and deposition areas, with the rapid deposition deforming the underlying sediments. Additionally, the study suggests that the landslide evolved in two failure stages over tens of thousands of years.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Proceedings Paper
Environmental Sciences
Mel Constant, Philippe Kerherve, Jennifer Sola, Anna Sanchez-Vidal, Miquel Canals, Serge Heussner
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON MICROPLASTIC POLLUTION IN THE MEDITERRANEAN SEA
(2018)
Article
Engineering, Civil
Arfan Arshad, Ali Mirchi, Javier Vilcaez, Muhammad Umar Akbar, Kaveh Madani
Summary: High-resolution, continuous groundwater data is crucial for adaptive aquifer management. This study presents a predictive modeling framework that incorporates covariates and existing observations to estimate groundwater level changes. The framework outperforms other methods and provides reliable estimates for unmonitored sites. The study also examines groundwater level changes in different regions and highlights the importance of effective aquifer management.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Lihua Chen, Jie Deng, Wenzhe Yang, Hang Chen
Summary: A new grid-based distributed karst hydrological model (GDKHM) is developed to simulate streamflow in the flood-prone karst area of Southwest China. The results show that the GDKHM performs well in predicting floods and capturing the spatial variability of karst system.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Faruk Gurbuz, Avinash Mudireddy, Ricardo Mantilla, Shaoping Xiao
Summary: Machine learning algorithms have shown better performance in streamflow prediction compared to traditional hydrological models. In this study, researchers proposed a methodology to test and benchmark ML algorithms using artificial data generated by physically-based hydrological models. They found that deep learning algorithms can correctly identify the relationship between streamflow and rainfall in certain conditions, but fail to outperform traditional prediction methods in other scenarios.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Yadong Ji, Jianyu Fu, Bingjun Liu, Zeqin Huang, Xuejin Tan
Summary: This study distinguishes the uncertainty in drought projection into scenario uncertainty, model uncertainty, and internal variability uncertainty. The results show that the estimation of total uncertainty reaches a minimum in the mid-21st century and that model uncertainty is dominant in tropical regions.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Z. R. van Leeuwen, M. J. Klaar, M. W. Smith, L. E. Brown
Summary: This study quantifies the effectiveness of leaky dams in reducing flood peak magnitude using a transfer function noise modelling approach. The results show that leaky dams have a significant but highly variable impact on flood peak magnitude, and managing expectations should consider event size and type.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Zeda Yin, Yasaman Saadati, M. Hadi Amini, Linlong Bian, Beichao Hu
Summary: Combined sewer overflows pose significant threats to public health and the environment, and various strategies have been proposed to mitigate their adverse effects. Smart control strategies have gained traction due to their cost-effectiveness but face challenges in balancing precision and computational efficiency. To address this, we propose exploring machine learning models and the inversion of neural networks for more efficient CSO prediction and optimization.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Qimou Zhang, Jiacong Huang, Jing Zhang, Rui Qian, Zhen Cui, Junfeng Gao
Summary: This study developed a N-cycling model for lowland rural rivers covered by macrophytes and investigated the N imports, exports, and response to sediment dredging. The findings showed a considerable N retention ability in the study river, with significant N imports from connected rivers and surrounding polders. Sediment dredging increased particulate nitrogen resuspension and settling rates, while decreasing ammonia nitrogen release, denitrification, and macrophyte uptake rates.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Xue Li, Yingyin Zhou, Jian Sha, Man Zhang, Zhong-Liang Wang
Summary: High-resolution climate data is crucial for predicting regional climate and water environment changes. In this study, a two-step downscaling method was developed to enhance the spatial resolution of GCM data and improve the accuracy for small basins. The method combined medium-resolution climate data with high-resolution topographic data to capture spatial and temporal details. The downscaled climate data were then used to simulate the impacts of climate change on hydrology and water quality in a small basin. The results demonstrated the effectiveness of the downscaling method for spatially differentiated simulations.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Tongqing Shen, Peng Jiang, Jiahui Zhao, Xuegao Chen, Hui Lin, Bin Yang, Changhai Tan, Ying Zhang, Xinting Fu, Zhongbo Yu
Summary: This study evaluates the long-term interannual dynamics of permafrost distribution and active layer thickness on the Tibetan Plateau, and predicts future degradation trends. The results show that permafrost area has been decreasing and active layer thickness has been increasing, with an accelerated degradation observed in recent decades. This has significant implications for local water cycle processes, water ecology, and water security.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Chi Zhang, Xu Zhang, Qiuhong Tang, Deliang Chen, Jinchuan Huang, Shaohong Wu, Yubo Liu
Summary: Precipitation over the Tibetan Plateau is influenced by systems such as the Asian monsoons, the westerlies, and local circulations. The Indian monsoon, the westerlies, and local circulations are the main systems affecting precipitation over the entire Tibetan Plateau. The East Asian summer monsoon primarily affects the eastern Tibetan Plateau. The Indian monsoon has the greatest influence on precipitation in the southern and central grid cells, while the westerlies have the greatest influence on precipitation in the northern and western grid cells. Local circulations have the strongest influence on the central and eastern grid cells.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Manuel Almeida, Antonio Rodrigues, Pedro Coelho
Summary: This study aimed to improve the accuracy of Total Phosphorus export coefficient models, which are essential for water management. Four different models were applied to 27 agroforestry watersheds in the Mediterranean region. The modeling approach showed significant improvements in predicting the Total Phosphorus diffuse loads.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Yutao Wang, Haojie Yin, Ziyi Wang, Yi Li, Pingping Wang, Longfei Wang
Summary: This study investigated the distribution and transformation of dissolved organic nitrogen (DON) in riverbed sediments impacted by effluent discharge. The authors found that the spectral characteristics of dissolved organic matter (DOM) in surface water and sediment porewater could be used to predict DON variations in riverbed sediments. Random forest and extreme gradient boosting machine learning methods were employed to provide accurate predictions of DON content and properties at different depths. These findings have important implications for wastewater discharge management and river health.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Saba Mirza Alipour, Kolbjorn Engeland, Joao Leal
Summary: This study assesses the uncertainty associated with 100-year flood maps under different scenarios using Monte Carlo simulations. The findings highlight the importance of employing probabilistic approaches for accurate and secure flood maps, with the selection of probability distribution being the primary source of uncertainty in precipitation.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Janine A. de Wit, Marjolein H. J. van Huijgevoort, Jos C. van Dam, Ge A. P. H. van den Eertwegh, Dion van Deijl, Coen J. Ritsema, Ruud P. Bartholomeus
Summary: The study focuses on the hydrological consequences of controlled drainage with subirrigation (CD-SI) on groundwater level, soil moisture content, and soil water potential. The simulations show that CD-SI can improve hydrological conditions for crop growth, but the success depends on subtle differences in geohydrologic characteristics.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Constantin Seidl, Sarah Ann Wheeler, Declan Page
Summary: Water availability and quality issues will become increasingly important in the future due to climate change impacts. Managed Aquifer Recharge (MAR) is an effective water management tool, but often overlooked. This study analyzes global MAR applications and identifies the key factors for success, providing valuable insights for future design and application.
JOURNAL OF HYDROLOGY
(2024)