Academic literature on the topic 'Reactive transport in riverine sediment'

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Journal articles on the topic "Reactive transport in riverine sediment"

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David, B. Baker, Ellen Ewing D., T. Johnson Laura, et al. "Lagrangian analysis of the transport and processing of agricultural runoff in the lower Maumee River and Maumee Bay." Journal of Great Lakes Research 40, no. 3 (2014): 479–95. https://doi.org/10.1016/j.jglr.2014.06.001.

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<strong>ABSTRACT</strong> Lagrangian analyses is used to evaluate the processing of nutrients and sediments during stormrunoff events as watermoved fromtheMaumee River loading station atWaterville, OHthrough the lower river, Maumee Bay and into Lake Erie&#39;s western basin. Chemical signatures of storm water atWaterville were used in combination with frequent collections ofwater at transects along the flow paths to evaluate processing. These signatures consisted of the contrasting chemographs of conservative parameters (chloride and sulfate), dissolved nutrients (dissolved reactive phosphorus
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Lenstra, Wytze K., Matthias Egger, Niels A. G. M. van Helmond, Emma Kritzberg, Daniel J. Conley, and Caroline P. Slomp. "Large variations in iron input to an oligotrophic Baltic Sea estuary: impact on sedimentary phosphorus burial." Biogeosciences 15, no. 22 (2018): 6979–96. http://dx.doi.org/10.5194/bg-15-6979-2018.

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Abstract. Estuarine sediments are key sites for removal of phosphorus (P) from rivers and the open sea. Vivianite, an Fe(II)-P mineral, can act as a major sink for P in Fe-rich coastal sediments. In this study, we investigate the burial of P in the Öre Estuary in the northern Baltic Sea. We find much higher rates of P burial at our five study sites (up to ∼0.145 molm-2yr-1) when compared to more southern coastal areas in the Baltic Sea with similar rates of sedimentation. Detailed study of the sediment P forms at our site with the highest rate of sedimentation reveals a major role for P associ
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Cathalot, C., C. Rabouille, L. Pastor, et al. "Temporal variability of carbon recycling in coastal sediments influenced by rivers: assessing the impact of flood inputs in the Rhône River prodelta." Biogeosciences 7, no. 3 (2010): 1187–205. http://dx.doi.org/10.5194/bg-7-1187-2010.

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Abstract. River deltas are particularly important in the marine carbon cycle as they represent the transition between terrestrial and marine carbon: linked to major burial zones, they are reprocessing zones where large carbon fluxes can be mineralized. In order to estimate this mineralization, sediment oxygen uptake rates were measured in continental shelf sediments and river prodelta over different seasons near the outlet of the Rhône River in the Mediterranean Sea. On a selected set of 10 stations in the river prodelta and nearby continental shelf, in situ diffusive oxygen uptake (DOU) and l
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Jong, Dirk, Lisa Bröder, Tommaso Tesi, et al. "Contrasts in dissolved, particulate, and sedimentary organic carbon from the Kolyma River to the East Siberian Shelf." Biogeosciences 20, no. 1 (2023): 271–94. http://dx.doi.org/10.5194/bg-20-271-2023.

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Abstract. Arctic rivers will be increasingly affected by the hydrological and biogeochemical consequences of thawing permafrost. During transport, permafrost-derived organic carbon (OC) can either accumulate in floodplain and shelf sediments or be degraded into greenhouse gases prior to final burial. Thus, the net impact of permafrost OC on climate will ultimately depend on the interplay of complex processes that occur along the source-to-sink system. Here, we focus on the Kolyma River, the largest watershed completely underlain by continuous permafrost, and marine sediments of the East Siberi
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Zhao, Lixiang, Xiaofei Nie, Haijin Zheng, Kaitao Liao, and Jinjuan Zhang. "The Lag Effect of Riverine Flow-Discharge and Sediment-Load Response to Antecedent Rainfall with Different Cumulative Durations in Red Hilly Area in China." Water 15, no. 23 (2023): 4048. http://dx.doi.org/10.3390/w15234048.

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Rainfall is an important factor that causes riverine flow and sediment transport, and extreme rainfall has a particularly significant effect on the fluctuations of riverine flow and sediment load. Based on the daily rainfall from 1990 to 2020, in the upper watershed of the Lianjiang River, which is one of the source tributaries of China’s largest freshwater lake (Poyang Lake), the 95th percentile method and minimum event interval time were employed to identify extreme rainfall events. Mann–Kendall test was used to check for abrupt changes in annual rainfall, riverine flow discharge, and riveri
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Fowler, David, Mhairi Coyle, Ute Skiba, et al. "The global nitrogen cycle in the twenty-first century." Philosophical Transactions of the Royal Society B: Biological Sciences 368, no. 1621 (2013): 20130164. http://dx.doi.org/10.1098/rstb.2013.0164.

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Global nitrogen fixation contributes 413 Tg of reactive nitrogen (N r ) to terrestrial and marine ecosystems annually of which anthropogenic activities are responsible for half, 210 Tg N. The majority of the transformations of anthropogenic N r are on land (240 Tg N yr −1 ) within soils and vegetation where reduced N r contributes most of the input through the use of fertilizer nitrogen in agriculture. Leakages from the use of fertilizer N r contribute to nitrate (NO 3 − ) in drainage waters from agricultural land and emissions of trace N r compounds to the atmosphere. Emissions, mainly of amm
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Mėžinė, Jovita, Christian Ferrarin, Diana Vaičiūtė, Rasa Idzelytė, Petras Zemlys, and Georg Umgiesser. "Sediment Transport Mechanisms in a Lagoon with High River Discharge and Sediment Loading." Water 11, no. 10 (2019): 1970. http://dx.doi.org/10.3390/w11101970.

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The aim of this study was to investigate the sediment dynamics in the largest lagoon in Europe (Curonian Lagoon, Lithuania) through the analysis of in situ data and the application of a sediment transport model. This approach allowed to identify the propagation pathway of the riverine suspended sediments, to map erosion-accumulation zones in the lagoon and calculate the sediment budget over a 13-year-long simulation. Sampled suspended sediment concentration data are important for understanding the characteristics of the riverine and lagoon sediments, and show that the suspended organic matter
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Huang, Yu-Qi, Jing-Hua Lin, Ray-Yeng Yang, Yang-Yih Chen, and Jia-Lin Julie Chen. "BEACH RESPONSE TO EXPOSED RIVERINE SEDIMENT AND BEACH NOURISHMENT." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 92. http://dx.doi.org/10.9753/icce.v36.sediment.92.

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Studying the process of riverine sediment at mouths and continental shelves is a critical subject for many engineering applications, such as dredging, navigation, dispersal and remobilization of contaminants. Sediment deposits also determine seabed properties, coastal geomorphology, and the health of coastal habitat/ecology. During extreme conditions, episodic river discharge triggered by large rainfall due to tropical cyclones may contribute significant amount of riverine sediment into the ocean. In the past decade, evidence of severe seabed erosion (up to 1m/year) along the sandy coast of Yu
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Liu, Hao, Hong Xuan Kang, and Bao Shu Yin. "Sediment Transport in the Quanzhou Bay." Advanced Materials Research 864-867 (December 2013): 2388–91. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.2388.

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Observations on 6 ship moorings during the spring and neap tides show that the suspended sediment concentration (SSC) changed according to the variation of the local tidal forcings under the normal weather conditions. During the neap tide, the measured concentration of suspended sediment is comparable to that of Jinjiang River, the only external sediment source in the course of observations; while during the spring tide, the observed SSC is one order higher than that of Jinjiang, meaning that relative to the riverine impact, the tidal current is more probably responsible for the sharp variatio
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Fu, Yutao, Richard Bellerby, Hongyu Ji, Shenliang Chen, Yaoshen Fan, and Peng Li. "Impacts of Riverine Floods on Morphodynamics in the Yellow River Delta." Water 15, no. 8 (2023): 1568. http://dx.doi.org/10.3390/w15081568.

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The geomorphological stability and ecological environment of megadeltas worldwide are of vital importance for their sustainable development. Deltaic hydro-morphodynamics is extremely sensitive to high riverine flow due to reduced sediment supply. However, the morphological evolution and response of deltas under high riverine flow have remained inadequately quantified. As one of the typical megadeltas, the Yellow River Delta (YRD), is becoming increasingly sensitive to environmental changes and intensified human interventions. In this study, a numerical model and field data were used to investi
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Dissertations / Theses on the topic "Reactive transport in riverine sediment"

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BARDINI, LAURA. "Impact of hyporheic zones on nutrient dynamics." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2507376.

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Riverine sediments play a fundamental role within the fluvial system, since they represent potential removal zones of stream-borne pollutants and, in particular, nutrients derived by anthropogenic activities. The region of sediments where the exchange and mixing of surface and subsurface waters occurs is the hyporheic zone. This region is also a place of intense biogeochemical activity, influencing both the flora and the fauna living in the fluvial environment. In the last decades several works were focused either on the water exchanges or the biochemical reactions in the hyporheic zone but ju
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Nones, Michael. "Aspects of riverine hydro-morpho-biodynamics at watershed scale." Doctoral thesis, Università degli studi di Padova, 2012. http://hdl.handle.net/11577/3422434.

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The integration of various scientific disciplines is becoming more and more important to define the complete evolution of an entire river system, both in time and in space. The aim of this thesis is to analyze the evolution of a river subjected to hydrological, morphological and biological interactions. This analysis is done at watershed scale, by using a numerical 1-D model plus a quasi 2-D sub-model. These models are able to integrate the available data, often scarce both qualitatively and quantitatively, especially in large unsurveyed rivers, typical of less developed countries. The model
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Clark, Kathryn Elizabeth. "Patterns and drivers of riverine particulate organic carbon transport in an Andean valley." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:caabfe4f-7499-4789-9bdc-e1dc708999a0.

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Physical erosion can mobilise particulate organic carbon (POC) from vegetation and soil, representing an export of primary productivity from ecosystems, and a lateral transfer of carbon recently-derived from the atmosphere. These carbon transfers are thought to be enhanced in mountain forests where erosion rates are high. However, the rates and controls on POC transfer remain poorly constrained, as does the impact of POC export on carbon cycling at regional and global scales. This thesis takes an interdisciplinary approach to address this issue, using remote sensing, river geochemistry, river
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Meile, Christof D. "An inverse model for reactive transport in biogeochemical systems : application to biologically-enhanced pore water transport (irrigation) in aquatic sediments." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/25816.

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Wang, Cheng. "AN INTEGRATED HYDROLOGY/HYDRAULIC AND WATER QUALITY MODEL FOR WATERSHED-SCALE SIMULATIONS." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2529.

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This dissertation presents the design of an integrated watershed model, WASH123D version 3.0, a first principle, physics-based watershed-scale model of integrated hydrology/hydraulics and water quality transport. This numerical model is comprised of three modules: (1) a one-dimensional (1-D) simulation module that is capable of simulating separated and coupled fluid flow, sediment transport and reaction-based water quality transport in river/stream/canal networks and through control structures; (2) a two-dimensional (2-D) simulation module, capable of simulating separated and coupled fluid flo
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Bohlin, Madeleine Sassaya. "Silicate weathering in the Himalayas : constraints from the Li isotopic composition of river systems." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/270728.

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Chemical weathering of silicate rock consumes atmospheric CO2 and supplies the oceans with cations, thereby controlling both seawater chemistry and climate. The rate of CO2 consumption is closely linked to the rate of CO2 outgassing from the planetary interior, providing a negative feedback loop essential to maintaining an equable climate on Earth. Reconstruction of past global temperatures indicates that a pronounced episode of global cooling began ~50 million years ago, coincident with the collision of India and Asia, and the subsequent exhumation of the Himalayas and Tibet. This has drawn a
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Zhang, Fan. "A NEW PARADIGM OF MODELING WATERSHED WATER QUALITY." Doctoral diss., University of Central Florida, 2005. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2387.

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Accurate models to reliably predict sediment and chemical transport in watershed water systems enhance the ability of environmental scientists, engineers and decision makers to analyze the impact of contamination problems and to evaluate the efficacy of alternative remediation techniques and management strategies prior to incurring expense in the field. This dissertation presents the conceptual and mathematical development of a general numerical model simulating (1) sediment and reactive chemical transport in river/stream networks of watershed systems; (2) sediment and reactive chemical transp
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Books on the topic "Reactive transport in riverine sediment"

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Mercier, Richard S. The reactive transport of suspended particles: Mechanisms and modeling. Woods Hole Oceanographic Institution, 1985.

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Runkel, Robert L. One-Dimensional Transport with Equilibrium Chemistry (OTEQ): A reactive transport model for streams and rivers. U.S. Department of the Interior, U.S. Geological Survey, 2010.

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J, McMillin Debra, Louisiana Universities Marine Consortium, and United States. Minerals Management Service. Gulf of Mexico OCS Region, eds. Fate and transport of particle-reactive normal, alkylated and heterocyclic aromatic hydrocarbons in a sediment-water-colloid system: [final]. U.S. Dept. of the Interior, Minerals Management Service, Gulf of Mexico OCS Region, 1993.

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Book chapters on the topic "Reactive transport in riverine sediment"

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Pitlick, John, and Peter Wilcock. "Relations between streamflow, sediment transport, and aquatic habitat in regulated rivers." In Geomorphic Processes and Riverine Habitat. American Geophysical Union, 2001. http://dx.doi.org/10.1029/ws004p0185.

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DeMaster, David J., and Robert C. Aller. "Biogeochemical Processes on the Amazon Shelf: Changes in Dissolved and Paniculate Fluxes During River/Ocean Mixing." In The Biogeochemistry of the Amazon Basin. Oxford University Press, 2001. http://dx.doi.org/10.1093/oso/9780195114317.003.0020.

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The immense discharge of the Amazon River causes river/ocean mixing to take place out on the continental shelf instead of within a drowned river valley, as in many smaller dispersal systems (Nittrouer and DeMaster, 1996). The magnitude of this discharge can be appreciated by recognizing that the Amazon River supplies approximately 20% (6 x 1015 L yr−1) of the freshwater reaching the oceans via fluvial transport and roughly 6% (1.2 x 1015 g yr−1, Meade et al. 1985) of the global riverine sediment discharge. Chemical, physical, and biological processes occurring in the river/ocean mixing zone co
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Medley, Kimberly E., and Francine M. R. Hughes. "Riverine Forests." In East African Ecosystems And Their Conservation. Oxford University PressNew York, NY, 1996. http://dx.doi.org/10.1093/oso/9780195108170.003.0014.

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Abstract ‘Riverine forest’ is an ecosystem that exhibits a composition, structure, and function dependent on the river processes of erosion, sediment transport, flooding inundation, and alluvial deposition (6). Other terms such as ‘floodplain’, ‘riparian’, ‘gallery,’ ‘fringing,’ and ‘alluvial’ are synonymous with the term ‘riverine’, but may be used in reference to a particular section along a river course as it flows from the highlands to the delta. Some terms refer to specific ecosystems such as the ‘igapo’ and ‘varzea’ forests along the Amazon (40). In all situations, the physical dynamics
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Sposito, Garrison. "Colloidal Phenomena." In The Surface Chemistry of Natural Particles. Oxford University PressNew York, NY, 2004. http://dx.doi.org/10.1093/oso/9780195117806.003.0005.

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Abstract The natural particles whose surface reactions figure most importantly in the geochemistry of soils and sediments range in size from approximately 10 nm to 10 µ,m—from fine clay to fine silt—while comprising a heterogeneous mixture of crystalline minerals, amorphous weathering residues, humus, and microbial biomass. The size range just given, which can be broadened in certain circumstances by as much as an order of magnitude from either endpoint, encompasses typical groundwater colloids and viruses in its lower portion, with riverine suspended solids and phytoplankton included in its u
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Boudreau, Bernard P. "Solute Transport Above The Sediment-Water Interface." In The Benthic Boundary Layer. Oxford University PressNew York, NY, 2001. http://dx.doi.org/10.1093/oso/9780195118810.003.0005.

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Abstract Transfer of solutes through a benthic boundary layer (BBL) exerts an influence on a number of geochemically important processes, including the dissolution of CaCO3 (Schink and Guinasso, 1977), ferromanganese nodule formation (Boudreau and Scott, 1978; Boudreau, 1988), oxygen consumption and the growth of microbial mats (Jumars and Nowell, 1984; Jfl,lrgensen and Revsbech, 1985; Gundersen and ]ri.lrgensen, 1990), nutrient transfer to coral reefs (Bilger and Atkinson, 1992, 1995; Baird and Atkinson, 1997), and the release of contaminants (Thibodeaux et al., 1980). This chapter describes
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C. Hoekwater, Joshua, Amy M. Villamagna, Brigid C. O’Donnell, Tyson R. Morrill, Ben J. Nugent, and Jared B. Lamy. "Timber and Trout: An Examination of the Logging Legacy and Restoration Efforts in Headwater Streams in New England (USA)." In Inland Waters - Ecology, Limnology and Environmental Protection [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1005113.

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The forested landscape of New England (USA) was dramatically altered by logging during the nineteenth and early twentieth centuries. Although the northern temperate forests of the region have largely regenerated, the streams and rivers remain impacted. The loss of terrestrial wood, organic material, and nutrient inputs during the forest regeneration period has affected habitat quality and biotic communities, most notably in small headwater streams. The same waterways are further impacted by now undersized stream crossings, mostly culverts associated with old infrastructure that alter hydrology
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Jakobsen, R., D. Postma, J. Kazmierczak, et al. "Geochemical reactive transport modeling in “4D” of groundwater arsenic distribution in a non-static developing fluvial sediment aquifer system—feasibility study based on the upper part of the Red River, Vietnam." In Arsenic in the Environment - Proceedings. CRC Press, 2016. http://dx.doi.org/10.1201/b20466-75.

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Conference papers on the topic "Reactive transport in riverine sediment"

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Zhang, Shuo, and Donald DePaolo. "Reactive transport modeling in understanding carbonate diagenesis in deep sea sediment and associated pore fluid." In Goldschmidt2023. European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.17172.

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Essaid, Hedeff I., James S. Kuwabara, James L. Carter, and Brent R. Topping. "USING FLOW AND REACTIVE TRANSPORT MODELING TO ESTIMATE DIFFUSION AND ADVECTION OF PHOSPHORUS FROM LAKEBED SEDIMENT INTO UPPER KLAMATH LAKE, OR." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-298022.

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Barry, Jeff, Rafael G. Mora, and Brian Carlin. "An Approach for Prioritizing Pipeline Water Crossings (WC) for Effective Mitigation and Monitoring." In 2014 10th International Pipeline Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/ipc2014-33656.

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This paper provides an approach for assessing and classifying riverine pipeline crossings to prioritize effective mitigation and monitoring. These processes require understanding of and accounting for channel processes, river dynamics, geomorphic principals and soil mechanics to estimate bed scour and bank erosion degradation mechanisms at water crossings and their potential effects on the pipeline. The intent of this paper is to share generic experiences in ranking water crossings based on their susceptibility to and identification of integrity threats under multiple existing and future hydro
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Reports on the topic "Reactive transport in riverine sediment"

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Hsu, Tian-Jian, Fengyan Shi, and James T. Kirby. Interactions of Waves, Tidal Currents and Riverine Outflow and their Effects on Sediment Transport (RIVET II). Defense Technical Information Center, 2013. http://dx.doi.org/10.21236/ada598090.

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Emery, Benjamin, Charles Theiling, Suzzanne Conover, Breann Popkin, and Magdalena Asborno. Opportunities for Upper Mississippi River system sand to support coastal beach nourishment. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/49363.

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This research presents an opportunity to review the concept, status, and cost of using Upper Mississippi River (UMR) riverine dredged sand to nourish coastal beaches for increased resilience. Several dredged placement sites, transport modes, commercial and industrial uses, and end-point destinations will be identified in regional assessments and several specific UMR sediment to Great Lakes beneficial use projects will be reviewed here and assessed in greater detail during this research investigation.
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Beck, Aaron. North Sea Plastics I: Fate and impact of river-borne microplastics and their chemical additives in the North Sea Cruise No. AL586, 04 February – 10 February 2023, Kiel, DE – Kiel, DE. GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany, 2024. https://doi.org/10.3289/cr_al586.

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The river source of plastic debris to the southern North Sea region appears to be increasing over the past several decades, with a strong seasonal control on riverine MP transport and discharge. The current cruise, AL586, links plastic pollution in the North Sea to seasonal studies in the Elbe and Thames rivers as part of the H2020 LABPLAS project, with the objective to understand the transport and fate of river-derived small micro- and nanoplastics (SMNPs) in the North Sea. The specific objectives of the North Sea Plastics I &amp; II cruises (the current cruise AL586 and planned cruise AL596)
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Beck, Aaron, and Anja Engel. North Sea Plastics II: Fate and impact of river-borne microplastics and their chemical additives in the North Sea Cruise No. AL596, 26 June – 02 July 2023, Kiel, DE – Kiel, DE. GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany, 2024. https://doi.org/10.3289/cr_al596.

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The river source of plastic debris to the southern North Sea region appears to be increasing over the past several decades, with a strong seasonal control on riverine MP transport and discharge. The current cruise, AL596, links plastic pollution in the North Sea to seasonal studies in the Elbe and Thames rivers as part of the H2020 LABPLAS project, with the objective to understand the transport and fate of river-derived small micro- and nanoplastics (SMNPs) in the North Sea. The specific objectives of the North Sea Plastics I &amp; II cruises (the current cruise AL596 and previous cruise AL586
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Preliminary Design Guidance for Proposed Mainstream Dams in the Lower Mekong River Basin (PDG). Mekong River Commission Secretariat, 2023. http://dx.doi.org/10.52107/mrc.ajutqi.

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The new Preliminary Design Guidance is an updated version of the original PDG introduced in 2009. It incorporates not only what the MRC Member Countries have learnt from their own experience with hydropower, but also from examples and best practices around the world. It also includes the most current knowledge regarding design criteria, science and technology. While the older PDG spanned this range of construction and operation elements (hydraulics; sediment transport; geomorphology; water quality; aquatic ecology; fish and fisheries; dam safety; and navigation), the new PDG now includes hydro
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