样式: 排序: IF: - GO 导出 标记为已读
-
Physical and chemical techniques for a comprehensive characterization of river sediment: A case of study, The Moquegua River, Peru Int. J. Sediment Res. (IF 3.6) Pub Date : 2024-03-08 Luis De Los Santos Valladares, A. Vargas Luque, Luis Borja-Castro, Renato Valencia-Bedregal, José Velazquez-Garcia, E.P. Barnes, Angel Bustamante Dominguez, P. Byrne, Pratap Kollu, M. Rodríguez Martínez, J.A.H. Coaquira, C.H.W. Barnes
River sediment is comprised of complex mineral systems composed by different kinds of organic and inorganic matter, and thus, is difficult to characterize. Besides, some standard techniques, such as X-ray diffraction (XRD), energy dispersive X-ray (EDX), optical and scanning electron microscopy, Fourier transmission infrared spectroscopy, inductively couple plasma-mass spectrometry (ICP-MS), and simultaneous
-
Sediment transport dynamics during a super flood: A case study of the 2010 super flood at the Guddu Barrage on the Indus River Int. J. Sediment Res. (IF 3.6) Pub Date : 2024-03-07 Imran Aziz Tunio, Love Kumar, Sheeraz Ahmed Memon, Ali Asghar Mahessar, Abdul Wahid Kandhir
Annual sediment load transportation in the Indus River varies from 0.725 to 1.0 Mt/d and varies from 260 to 300 Mt/y. Sediment accumulation upstream of the inline structure (Guddu Barrage) has frequently increased. Consequently, the sediment accumulation reduces the intake canal supply, design withdrawals, and flood-carrying capacity of the Guddu Barrage. Furthermore, the Indus River changes its behavior
-
Feasibility of digital image colorimetric methods for iron determination in river sediment Int. J. Sediment Res. (IF 3.6) Pub Date : 2024-03-05 Patricia Fernanda Ferreira Lovato, Eduardo Sidinei Chaves, Luciano Nassif Vidal, Poliana Macedo Santos
The current study describes the development of simple, low-cost, and high-throughput digital image colorimetric methods to determine the total iron concentration in river sediment using the spot-test reactions of iron with 1,10-phenanthroline and thiocyanate. The colorimetric assay was done on 96-microzone plates, and a flatbed scanner was applied to acquire the images. The proposed methods offered
-
Hydraulics and bedload in unsteady flow: Example of the Volga River Int. J. Sediment Res. (IF 3.6) Pub Date : 2024-02-03 Gennadii Gladkov, Viktor Katolikov, Pakhom Belyakov, Polina Rzhakovskaya, Vitaly Zamyshlyaev
The current paper deals with the navigable section of the Volga River tailwater of the Nizhny Novgorod Hydropower Plant. To ensure navigation in this area, the existing navigation structures are being reconstructed and an additional chamber of the Gorodets Navigation Lock is to be constructed, and an extended navigable channel in the Volga River is to be created. To assess the impact of the planned
-
Palynofacies and sediment texture response from sub-tropical mixed sub-urban to urban floodplains of the Gomati River, Lucknow, India Int. J. Sediment Res. (IF 3.6) Pub Date : 2024-01-30 Pooja Tiwari, Purnima Srivastava, Biswajeet Thakur
Hydromorphodynamic interactions with vegetation are a part of fluvial biomorphodynamics in actively meandering rivers. Using palynofacies and grain size from sub-urban to urban reaches across the river valley, the spatial patterns of organic matter behavior are examined in a 38 km reach of the Gomati River in Lucknow District, Uttar Pradesh, India. This is done to understand how they respond to the
-
Reducing bed scour in meandering channel bends using spur dikes Int. J. Sediment Res. (IF 3.6) Pub Date : 2024-01-23 Zeeshan Akbar, Ghufran Ahmed Pasha, Norio Tanaka, Usman Ghani, Hossein Hamidifar
A river’s planform pattern changes due to erosion of banks and the bed near the outer bend. The primary cause of these planform changes is the formation of helical flow patterns in response to centrifugal forces. Uncontrolled bed scouring can have a negative impact on the river’s geometry, aquatic habitat, and floodplains. To alleviate this scouring, various structures, such as spur dikes, can be placed
-
Experimental study on hydro-suction removal of cohesionless bed material Int. J. Sediment Res. (IF 3.6) Pub Date : 2024-01-23 Akash Jaiswal, Zulfequar Ahmad, Surendra Kumar Mishra
The current study deals with experiments on hydro-suction removal of cohesionless bed material from reservoirs. The primary focus lies in scrutinizing the scour profile and the volume of bed material removed through hydro-suction. A comprehensive record of 252 datasets was collected from experiments done on various combinations of governing parameters. The resultant equilibrium scour profile exhibited
-
Short-term phosphorus transformation in shallow-lake sediments mediated by nitrogen and iron under anoxic conditions Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-12-28 Yihan Rao, Yi Wang, Yumei Hua, Xiaoqiong Wan
The release of internal phosphorus (P) is a key and complex process relative to a lake’s nutrient levels. The P response to nitrogen input should be clarified to obtain better detail, especially with respect to the mediation role of iron (Fe) connecting nitrogen and P. A simulation study was done in batch vials containing sediment and overlying water collected from Lake Moshui—a shallow lake. Because
-
A holistic view of aquatic ecosystems: Integrating health and integrity, network, stability, and regime shift assessments Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-12-28 Lei Huang, Jia-Nan Meng, Fuliu Xu, Ya Zhou, Guojian He, Kai Wang, Hongwei Fang
Aquatic ecosystems, especially freshwater ecosystems, are facing increasing anthropogenic disturbances, highlighting the urgency for accurate ecosystem assessment for informed decision-making and effective management. While ecosystem health and integrity assessments have been widely applied, they often focus on ecosystem elements, overlooking their interconnections and dynamic characteristics. Establishing
-
Effects of the angle between the rock strata and slope on flow hydraulics and sediment yield in karst trough valley: Laboratory scour experiment Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-12-20 Yuqi Zhang, Lan Song, Yunfei Bi, Binghui He, Rongchang Zeng, Tianyang Li
The angle between the exposed bedrock and slope in a karst trough valley strongly affects overland flow behavior, thus, altering the generation of runoff and sediment. However, the directions and magnitudes of these effects remain unclear. The current study aimed to investigate the effects of the angle between the rock and slope on flow hydraulics, runoff, and sediment yield, as well as their linkages
-
Review of methods of sediment detection in reservoirs Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-12-20 Stephan Hilgert, Klajdi Sotiri, Stephan Fuchs
As reservoir sedimentation is rapidly progressing on a global scale, intensified and better adapted monitoring of sediment accumulation is needed to design optimal counter measures. In the current study, different methods on how to assess the siltation status of different reservoir types are represented by including the availability of previous data. Four different techniques are described by means
-
Quantification of sedimentary organic carbon sources in a land–river–lake continuum combined with multi-fingerprint and un-mixing models Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-12-19 Shilan Wang, Xiaodong Nie, Zhongwu Li, Fengwei Ran, Changrong Yang, Tao Xiao
Identifying organic carbon (OC) sources in lake sediment is essential for elucidating biogeochemical cycling processes and effectively supporting watershed management. However, the complexity of sources as well as environments in the land–river–lake continuum makes it challenging to accurately identify OC sources. Accordingly, the current study utilized a systematic approach to identify and validate
-
Environmental radioactivity, radiological hazards, and trace elements assessment of nearshore sediment in the Bay of Bengal Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-12-14 Manikanda Bharath Karuppasamy, Usha Natesan, Chandrasekaran Seethapathy, Srinivasalu Seshachalam
The current study focuses on the environmental radioactivity and multi-risk assessment of nearshore sediment as a source of marine pollution along the Bay of Bengal. The study examines the distribution of primordial radionuclide concentrations using a thallium-activated sodium iodide (NaI(Tl)) detector-based gamma-ray spectrometer and Potentially Toxic Elements (PTE) through atomic adsorption analysis
-
Quantitative definition of Shields criterion for incipient sediment motion Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-12-13 Nian-Sheng Cheng, Chengxiao Lu, Yesheng Lu, Maoxing Wei, Lichan Zheng
The Shields diagram has been widely used in the description of the threshold condition for incipient sediment motion. Because the current definition of the Shields criterion is generally subjective, the relevant data are subject to high uncertainty. To date, several efforts have been made to define the threshold condition quantitatively, but they are all based on certain low bedload rates that were
-
River system sediment flow modeling using artificial neural networks Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-11-21 Tushar Khankhoje, Parthasarathi Choudhury
Sediment leads to problems with navigation, agricultural productivity, and water pollution. The study of sediment flow in river reaches, which is a non-linear and complex process, is, thus, essential to addressing these issues. The application of artificial neural networks (ANN) to such problems needs to be investigated. For unsteady flow in a river system, river reach storage is an important variable
-
An improved method for sand wave morphology discrimination in rivers by combining a flow resistance law and support vector machines Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-11-21 Yuchuan Bai, Yanjie Sun, Xiaolong Song, Haijue Xu
A parameterized expression for sand wave morphology in rivers is established using a flow resistance law while accounting for sediment incipient velocity. A distinct relation is drawn between the proposed characteristic parameters and the sand wave morphology based on flume data. Support vector machines (SVMs) are then used to separate the boundaries of the sand wave morphology due to the high classification
-
Hydro-morphological alteration and related effects on fish habitat induced by sediment management in a regulated Alpine river Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-11-15 Livia Servanzi, Silvia Quadroni, Paolo Espa
Sediment pulses can cause relevant geomorphological alteration and fine sediment deposition, affecting the entire river ecosystem. Quantifying the impact of these events is becoming increasingly important, as sediment disturbance is predicted to intensify because of growing anthropogenic activity combined to the effects of current climate change. In this paper, the effects of a sediment pulse event
-
Catchment and channel components of sediment runoff in river flows (granulometric approach) Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-11-14 Marina Shmakova
A model of the channel and catchment components of sediment runoff has been developed. The model makes it possible to estimate the intensity of redistribution of river and bottom sediment in the riverbed, the size distribution of deposited or migrating particles, the mass of particles in the riverbed and catchment components of sediment load, as well as the contribution of the catchment component.
-
Using Cs-137 measurements and RUSLE model to explore the effect of land use changes on soil erosion and deposition rates in a mid-sized catchment in southern Italy Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-11-14 Paolo Porto, Giovanni Callegari, Abid Ouadja, Ernesto Infusino
In some areas of southern Italy, the change in land use over the last 4–5 decades has increased pressure on land and water resources and caused different forms of soil degradation. In order to mitigate the magnitude of soil erosion, different strategies that include construction of flood control structures and reforestation programs have been done in several areas. However, quantifying the effectiveness
-
Downward seepage effects on flow near a L-shape spur dike and bed morphology Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-11-11 Harish Kumar Patel, Meilan Qi, Bimlesh Kumar
Spur dikes are structures built along riverbanks that serve two purposes: stabilizing the banks and minimizing erosion risk by controlling water flow in the river channel. The current study used L-shaped spur dikes in an alluvial channel to analyze the bed morphology and flow pattern in the spur dikes zone with the influence of no-seepage and two distinct seepage velocities, VS1 = 0.075 mm/s and VS2
-
Spatiotemporal variability in the C-factor: An analysis using high resolution satellite imagery Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-11-11 Nabil Allataifeh, Ramesh Rudra, Prasad Daggupati, Jaskaran Dhiman, Pradeep Goel, Shiv Prasher
Estimating the cover and management factor (-factor) for Universal Soil Loss Equation (USLE) that varies spatially and temporally within a watershed is time-consuming and resource-intensive. The Normalized Difference Vegetation Index (NDVI) approach can offer a potential alternative for this process. The current study examines nine NDVI models to compare and evaluate their performance in estimating
-
Long-term evolution of meandering channel planforms in response to the mean annual flow and width–depth ratio Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-11-11 Xiaolong Song, Haijue Xu, Yuchuan Bai
A depth-averaged linearized meander evolution model was used to numerically evaluate the spatiotemporal evolution of the meandering channel centerline in the plane at various mean annual flows and width–depth ratios for capturing the overall average trend of the meandering channel planform. This analysis was done to better understand the consistent responses of the river morphology to possible future
-
A new approach to simulate watershed sediment graphs Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-11-10 Azadeh Katebikord, Seyed Hamidreza Sadeghi, Vijay P. Singh
Soil loss management requires reliable data for assessing the conditions prevailing in a watershed. Suspended sediment concentration (SSC) is one of the indicators of soil loss, and its data and associated properties are essential for integrated watershed management. However, until now, practical methods for estimating the temporal variation of SSC at the watershed scale, i.e., a sediment graph (SG)
-
Multi-method characterization of the recent sediment from the Dibi subsidence lake in the tropical Adamawa region (central Cameroon): Implications for the palaeoenvironmental reconstruction Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-11-09 Agathe Catherine N. Ngo Ndje, Chavom Bachirou Mfayakouo, Soureiyatou Fadil-Djenabou, Paul-Desire Ndjigui
The evolution and functioning of various tropical ecosystems is poorly understood due to a lack of quantitative techniques to characterize the physicochemical composition of soils and sediment. Here, a detailed multi-method study of lithological changes is provided from a core taken from the silted-up Dibi subsidence lake (central Cameroon). To unravel the provenance of sediment, mineral constituents
-
-
The role of waves in the resuspension and transport of fine sediment and mine tailings from the Fundão Dam failure, Doce River, Brazil Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-09-22 Susana Beatriz Vinzon, Marcos Nicolas Gallo, Mariela Gabioux, Diego Luiz Fonseca, Fernanda Minikowski Achete, Renato David Ghisolfi, Guilherme Nogueira Mill, Sabrina Aparecida Ramos da Fonseca, Valéria da Silva Quaresma, Kyssyanne Samihra Santos Oliveira, Guilherme Brigagão, Léo Gonçalves Machado
In one of the world's worst mining disasters, after flowing 670 km down the Doce River, about 20 million m of tailings reached the coast of Brazil in November 2015. The occurrence of persistent northerly winds favored the detachment of the river plume from the coastline and its displacement southward. However, observations of the sediment plume along the coast during the year following the breach,
-
Establishment and development of the World Association for Sedimentation and Erosion Research Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-09-22 Cheng Liu, Zhaoyin Wang, Des E. Walling
Problems of soil erosion and sedimentation are issues of global concern. With the intensification of global change and the impacts of human activities, many countries are facing severe challenges from wide-ranging sediment-related problems. The prevention and control of sediment disasters and the rational use of soil and sediment resources are important requirements for the sustainable development
-
Effects of sample preparation methods on measured characteristics of marine and fluvial sediment Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-09-21 Rachid Zentar, Fatima Ouendi, Hongwei Wang
Dredged sediment is complex material composed of mineral phases, organics phases, and liquid phases. For the characterization of sediment in the laboratory, the material should be dried before applying some tests, such as the determination of organic matter content, X-ray diffraction (XRD) analysis, X-ray fluorescence (XRF) analysis, specific surface area, specific gravity, and many other tests. To
-
Experimental study on flocculation and sedimentation characteristics of cohesive fine sediment measured using ultrasound in the Pearl River Estuary Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-09-14 Qinqin Liu, Xiaojian Liu, Jian Chen, Peng Hou, Yong He, Qisong Wang, Xiaowei Zhu, Qiang Wang, Huan Gao
Flocculation-settling of cohesive fine sediment is the main cause of sediment deposition and changes in topography and geomorphology in estuaries. However, studies on estuary morphology have often focused on a single influencing factor, and sediment deposition characteristics under disturbances in sediment concentration, moisture content, and external forces have rarely been considered simultaneously
-
Preliminary assessment of the suspended sediment dynamics in the Sikkim–Darjeeling Himalayan river Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-09-09 Paweł Prokop
The Sikkim–Darjeeling Himalaya region receives the highest amount of rainfall along the whole southern Himalayan margin and is known for the occurrence of extreme hydrometeorological and geomorphological events. The massive amounts of water and sediment transported each year through the mountain part of the Teesta River drainage system (∼8,150 km2)––the largest river in the region––have been severely
-
Characterization of the micro-interfacial interactions of heterogeneous particulate matter (fine-grained sediment and microplastics) with copper ions Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-09-01 Jing Ou, Zhihe Chen, Tung-Chiung Chang
Particulate matter, such as sediment and microplastics (MPs), in aqueous environments has comparable micro-interfacial characteristics. However, the micro-interfacial characteristics of heterogeneous particulate matter are complex and are not fully understood. In this study, micro-interfacial kinetics and the interactions governing copper (Cu) ion adsorption to PP–sediment were investigated using micro-interfacial
-
Robust low-rank learning multi-output regression for incipient sediment motion in sewer pipes Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-08-30 Mir Jafar Sadegh Safari, Shervin Rahimzadeh Arashloo
The existing incipient sediment motion models typically apply conventional regression methods considering either velocity or shear stress. In the current study, incipient sediment motion is analyzed through a simultaneous and joint analysis of velocity and shear stress using the robust low-rank learning (RLRL) multi-output regression technique. Moreover, the experimental data compiled from five different
-
Local scour around submerged angled spur dikes under ice cover Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-08-28 Guowei Li, Jueyi Sui, Sanaz Sediqi, Mauricio Dziedzic
Local scour is a phenomenon leading to the localized lowering of the channel bed due to the imbalance of sediment transport. As spur dikes protrude into the natural channels, local scour could be triggered. Accurate estimation of local scour around spur dikes is crucial for the effectiveness of erosion control and prevention and habitat enhancement measures. In the current study, the correlations between
-
-
A two-dimensional double layer-averaged model of hyperconcentrated turbidity currents with non-Newtonian rheology Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-08-21 Yining Sun, Ji Li, Zhixian Cao, Alistair George Liam Borthwick
Hyperconcentrated turbidity currents typically display non-Newtonian characteristics that influence sediment transport and morphological evolution in alluvial rivers. However, hydro-sediment-morphological processes involving hyperconcentrated turbidity currents are poorly understood, with little known about the effect of the non-Newtonian rheology. The current paper extends a recent two-dimensional
-
Experimental study on the effect of hydrodynamic conditions on flocculation and settling properties of fine-grain sediment Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-08-06 Bismark Odum, Chunyang Xu, Yongping Chen, Yinpeng Yao, Yan Zhou
The flocculation of cohesive sediment particles is a function of the collision efficiency of sediment particles, which is mainly influenced by local flow hydrodynamics. A detailed study on local hydrodynamic characteristics in a novel stirred tank was done to measure the flow field of a turbulent flow. Instantaneous flow velocity fields were obtained and processed, and the average flow field was computed
-
Index model equation analysis: A case study of the risk and source of inorganic contaminants in roadside uncontaminated soil of the Egi oil producing area, Niger Delta Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-08-01 Elechi Owhoeke, Asmat Ali, Okorondu Justin Nnaemeka, Kingsley John Orie, Julius Nkeonyeasua Ehiwario, Abdur Rashid
-
Ensemble and optimized hybrid algorithms through Runge Kutta optimizer for sewer sediment transport modeling using a data pre-processing approach Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-07-29 Enes Gul, Mir Jafar Sadegh Safari, Omer Faruk Dursun, Gokmen Tayfur
Uncontrolled sediment deposition in drainage and sewer systems raises unexpected maintenance expenditures. To this end, implementation of an accurate model relying on effective parameters involved is a reliable benchmark. In this study, three machine learning techniques, namely extreme learning machine (ELM), multilayer perceptron neural network (MLPNN), and M5P model tree (M5PMT); and three optimization
-
Assessment of ecological risk for heavy metals in surface sediment of an urban river in a developing country Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-07-18 Md Saiful Islam, Md Humayun Kabir, Mir Mohammad Ali, Md Towhidul Islam, Asfia Niger, Md Humayun Kabir, Zulhilmi Ismail, Sujat Ahmed, Khalid A. Ibrahim, Abubakr M. Idris
The speed of increasing threats to the riverine water resources makes it more critical to protect the health of Old Brahmaputra River ecosystems. The current study was done to investigate the concentrations, distributions, sources, and ecological risk of heavy metals in surface sediment from the Old Brahmaputra River, Bangladesh. Samples were collected from seven sites and analyzed with an inductively
-
Scour hole reduction at a diversion channel junction using different entrance edge shapes Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-07-08 Ahmed Yahya Abdulhafedh, Nashwan Kamalaldeen Alomari, Ahmed Mohammed Sami Al-Janabi
In the current study, the effect of the entrance edge shape on the scour hole in the diversion junction region was experimentally investigated. The investigation has considered three entrance models-rounded edge shapes on one or both sides of the diversion channel entrance-with five different inlet edge radius ratios (rr) of 25%, 37.5%, 50%, 62.5%, and 75% and five different diversion discharge ratios
-
The Igarapé Weir decelerated transport of contaminated sediment in the Paraopeba River after the failure of the B1 tailings dam (Brumadinho) Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-07-01 Daniela Patrícia Salgado Terêncio, Fernando António Leal Pacheco, Renato Farias do Valle Junior, Maytê Maria Abreu Pires de Melo Silva, Teresa Cristina Tarlé Pissarra, Marília Carvalho de Melo, Carlos Alberto Valera, Luís Filipe Sanches Fernandes
-
Experimental investigation of sediment transport in partially ice-covered channels Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-06-19 Mina Rouzegar, Shawn P. Clark
It is important to understand the effects of ice cover on sediment transport in cold climates, where sub-freezing temperatures affect water bodies for a significant part of the year. The literature contains many studies on sediment transport in open channel flow, and several studies on sediment transport in completely ice-covered flow. There has been little or no research on sediment transport in partially
-
Rapid magnetic susceptibility measurement as a tracer to assess the erosion–deposition process using tillage homogenization and simple proportional models: A case study in northern of Morocco Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-06-08 Abdessalam Ouallali, Naima Bouhsane, Saidati Bouhlassa, Mohamed Moukhchane, Shamsollah Ayoubi, Habiba Aassoumi
Soil erosion is a significant threat in the Rif region in northern Morocco. Hence, accurate cartography of the phenomenon, magnitude, and extent of erosion in the area needs a simple, rapid, and economical method such as magnetic susceptibility (MS). The current study aims to: (i) determine the factors influencing the variation of soil MS, (ii) exploit MS to estimate soil loss using two approaches
-
Improving hydrodynamic modeling of river networks by incorporating data assimilation using a particle filter Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-06-04 Chenhui Jiang, Dejun Zhu, Haobo Li, Xiaoqun Liu, Danxun Li
Numerical modeling is a well-recognized method for studying the hydrodynamic processes in river networks. Multi-source measurements also offer abundant information on the patterns and mechanisms within the processes. Therefore, improving hydrodynamic modeling of river networks through the use of data assimilation techniques has become a hot research topic in recent years. The particle filter (PF) is
-
-
Study of gravitational sedimentation of flexible, permeable circular and planktonic particle applying the immersed boundary method Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-06-01 Rekha Panghal, Sudeshna Ghosh
The gravitational settling of a flexible, permeable circular and planktonic particle drenched in a fluid which is assumed to be Newtonian and incompressible along with being viscous was studied. A mathematical formulation and numerical simulations of the studied problem were done by applying the Immersed Boundary Method (IBM) in a two-dimensional fluid domain. Parametric studies were done for analyzing
-
Historical fluxes of metal and metalloids in an aquatic ecosystem affected by land-use change and mining activities in northwestern Mexico Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-05-16 Ochoa-Contreras Roberto, Jara-Marini Martín Enrique, Ruiz-Fernández Ana Carolina, Sanchez-Cabeza Joan Albert, Meza-Figueroa Diana, Pérez-Bernal Libia Hascibe
Freshwater reservoirs are essential owing because of their ecological, economic, and social importance. They are particularly vulnerable to contamination, as of metal and metalloids, derived from anthropogenic activities like mining. The temporal variations in trace element concentrations (arsenic (As), mercury (Hg), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb), and zinc (Zn)), enrichment, fluxes
-
Diagenetic signatures in the deltaic and fluvial-estuarine Messinian sandstone reservoirs in the Nile Delta as a tool for high-resolution stratigraphic correlations Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-05-12 Mahmoud Leila, Andrea Moscariello, Dustin Sweet, Branimir Šegvić
The current study utilizes a range of diagenetic fingerprints to differentiate between sandstone facies deposited in the Nile Delta before and during the Messinian salinity crisis (MSC), which is normally a challenging task considering the complex bio- and lithostratigraphic subdivisions of Messinian rock units. Subaerial exposure of the pre-MSC (Qawasim deltaic sandstone), during drawdown of the Mediterranean
-
A framework approach to address the trend and causes of flood stage change in a river reach downstream of a dam influenced by tributaries Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-05-10 Zhaohua Sun, Shanshan An, Xinyue Zhou, Zhiqing Li, Lei Zou
The evaluation of the trend of flood stage changes in alluvial rivers downstream of dams is important for flood management. However, the flood stage associated with a given discharge generally is nonstationary in river reaches with multiple tributaries. This is not only because of the dam-induced shifting in the cross-sectional area and/or channel roughness but also because of the backwater induced
-
Sand wave migration near the southeastern corner of Martha's Vineyard, Massachusetts, USA Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-04-26 Vinícius Santos Pessanha, Peter Cheng Chu, Matthew Kenneth Gough, Peter Traykovski, Mara Morgenstern Orescanin
Sand waves of approximately 2 m in height were observed to migrate nearly 40 m with counterclockwise rotation between two bathymetric surveys performed three months apart near the southeastern corner of Martha's Vineyard, Massachusetts. The region is characterized by strong tidal currents, intermittent energetic surface wave events, and shallow water with local depth ranging from 2 to 7 m. This study
-
Analysis of the sediment sources of flood driven erosion and deposition in the river channel of the Fu River Basin Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-04-23 Shanghong Zhang, Xujian Hu, Wei Miao, Zan Xu
Studying the characteristics of runoff and sediment processes and revealing the sources of sediment provide key guidance for the scientific formulation of relevant soil erosion protection measures and water conservancy development plans. In the current study, the flow and sediment data of five hydrological stations on the main stream of the Fu River Basin (FRB) from 2007 to 2018 were selected to identify
-
Modeling uncertainties of reservoir flushing simulations Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-04-23 Camila Bergmann Goulart, Tobias Bleninger, Hugo de Oliveira Fagundes, Fernando Mainardi Fan
Every dam or barrage construction affects the watercourse and the retention of sediment that previously was carried by the river, which can lead to siltation of the reservoir and obstruction of water intakes over time, reducing their capacities. However, the information available regarding the effect of sediment and drawdown parameters, sediment management at reservoirs, as well as different equational
-
-
Base flow separation for soil erosion simulation in a granitic forested headwater catchment using a process-based model, GeoWEPP Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-04-17 Takuhei Yamasaki, Shoichiro Hamamoto, Taku Nishimura
Distributed erosion models, which simulate the physical processes of water flow and soil erosion, are effective for predicting soil erosion in forested catchments. Although subsurface flow through multiple pathways is dominant for runoff generation in forested headwater catchments, the process-based erosion model, Geo-spatial interface for Water Erosion Prediction Project (GeoWEPP), does not have an
-
Numerical modeling of local scour of non-uniform graded sediment for two arrangements of pile groups Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-04-14 Saeid Okhravi, Saeed Gohari, Mahdi Alemi, Rodrigo Maia
A three-dimensional (3D) non-hydrostatic numerical model is established to investigate local scour around four aligned circular piles in uniform and non-uniform sediment mixtures and to provide information for improving scour countermeasures design. In the current study, unsteady Reynolds averaged Navier–Stokes (URANS) equations along with a Re-normalization Group (RNG) k–ε model were applied to simulate
-
Geographic distribution of arsenic contamination in the Himalayan Rivers flowing through Pakistan: Implications for its natural source and effects of anthropogenic activities Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-04-12 Ishtiaque Hussain, Hafiz Ur. Rehman, Takaaki Itai, Junaid Ali Khattak, Abida Farooqi
Arsenic (As) in natural hydrological systems is known as a worldwide major environmental concern. A geochemical and sedimentological study was done to ascertain the origin and geographical distribution of As in surface water and fluvial sediment collected from the floodplains/basins of the River Indus and its four major tributaries that drain through the northern Pakistan. The hydrogeochemical compositions
-
Simulation of submerged granular flows by development of a two-phase incompressible explicit mesh-free method Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-04-06 Tibing Xu, Shuangke Sun, Peng Wu
The interaction between fluid and sediment particles is widely involved in hydraulic engineering problems. In the current study, an explicit incompressible mesh-free method in the framework of the Moving Particle Semi-implicit (MPS) method is proposed to simulate the interaction between the two phases in submerged conditions. The proposed method solves two sets of the continuity and momentum equations
-
Provenance, depositional process, and tectonic setting of gold placer from the Bétaré-Oya Gold District (East-Cameroon, Central Africa) along the Precambrian Sanaga fault Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-04-05 Milan Stafford Tchouatcha, Arnaud Patrice Kouske, Primus Azinwi Tamfuh, Epimarc Gildas Tchameni Ngouabe, Gerald Chuye Yango
The Bétaré-Oya Gold District is one of the three gold districts in East Cameroon with varied types of mining. The study site is an open-cast mine located in an alluvial plain. The strata succession globally consists of two positive sequences represented by three facies associations and seven lithofacies: massive clast-supported (Gcm), massive trough-cross bedded (Gtm), and massive matrix-supported
-
A new concept to forecast the process of suspended sediment accumulation in the bottom sediment of small reservoirs Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-04-04 Maksymilian Cieśla, Renata Gruca-Rokosz, Lilianna Bartoszek
-
Exploring the potential of artificial intelligence techniques in prediction of the removal efficiency of vortex tube silt ejector Int. J. Sediment Res. (IF 3.6) Pub Date : 2023-03-31 Sanjeev Kumar, Chandra Shekhar Prasad Ojha, Nand Kumar Tiwari, Subodh Ranjan
A vortex tube silt ejector is a curative hydraulic structure used to remove sediment deposits from canals and is recognized as one of the most efficient substitutes for physically removing canal sediment. The spatially varied flow in the channel and the rotational flow behavior in the tube make the silt removal process complex. It is even harder to accurately predict the silt removal efficiency by