Download or read book Numerical Modeling of Bulk Sediment Deposition and Scour in the Lower Mississippi River Physical Model written by Ronald Joseph Rodi and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Land loss restoration along the southeast Louisiana coast relies on the replenishment of sand from the sediment of the Mississippi River. To further the understanding of sediment transport and hydraulic characteristics of the lowermost segment of the river, the Louisiana Coastal Protection and Restoration Authority (CPRA) funded construction of the Lower Mississippi River Physical Model (LMRPM). This distorted-scale, movable bed model encompasses the lowermost 193-mile reach of the river, including from Donaldsonville, Louisiana to the Gulf of Mexico the Bonnet Carre Spillway and planned river sediment diversions. Designed to replicate the prototypical river hydraulics and bulk bedload (sand) transport, scaled historic river discharges are routed through the model.. Lightweight synthetic particles representing the very fine to fine grain sand sediments of the lower river are injected based on the results of a numerical sediment transport simulation from Tarbert Landing to the Gulf of Mexico. The depths and opaqueness of the model make it challenging to non-destructively measure real-time sediment transport. The objective of the research is employ non-destructive methods to measure reach-by-reach sediment levels that can be used to predict the scour and deposition of the bed load sediments. Having a method to locate and quantity sediment accumulations would benefit both navigational and coastal restoration stakeholders. During a LMRPM test of 1995 through 1999 discharges, ultrasonic sensors measured the sediment bed levels along a 17-mile reach of the model. Measured year-to-year bed elevation changes were translated into volumetric changes and compared to computed bed volume changes using boundary shear stress results from 1-D, unsteady flow numerical simulations. The measured-to-observed data, plotted in a scatter graph, align closely to 1:1 regression line of observed-to-observed values validating the process. This approach was also shown to successfully predict deposition patterns in one of the prototype lowermost river crossings.
Download or read book A Mathematical Study of the Impact on Salinity Intrusion of Deepening the Lower Mississippi River Navigation Channel written by Billy H. Johnson and published by . This book was released on 1987 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The US Army Engineer District, New Orleans has been evaluating the feasibility of deeper draft access to the ports of New Orleans and Baton Rouge, Louisiana. One of the factors being considered in the evaluation is the impact of the deeper channel on salinity intrusion in the Lower Mississippi River. The importance of such an evaluation is because the city of New Orleans relies primarily upon the Mississippi River for its supply of fresh water. A major reason for conducting the numerical modeling study was not only to evaluate the impact of a deeper channel on salinity intrusion using historical riverflows but also to use the numerical model to determine the impact on the wedge intrusion of increasing the height of natural river crossings, i.e., creating a sill in the river. To address the question of the stability of such a sill composed of natural sediment, the HEC-6 computer program Scour and Deposition in Rivers and Reservoirs, HEC (1977), was applied.
Download or read book Simulation of Flow and Transport in the Lower Mississippi River Louisiana written by Philip B. Curwick and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Suspended Sediment and Bed Material Studies on the Lower Mississippi River written by Lamont G. Robbins and published by . This book was released on 1977 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate purpose of sediment studies is to develop a workable knowledge of the basic principles controlling the transport of sediment in the Lower Mississippi River and to apply this knowledge toward effective and economical stabilization works for flood control and navigation. The more immediate purpose of this report, however, is to present the data that have been collected and analyzed to date (1929-1974) and to show what trends exist in the quantities and sizes of suspended and bed sediments for the Vicksburg District.
Download or read book Lower Mississippi River Tarbert Landing to East Jetty Sedimentation Study written by Ronald R. Copeland and published by . This book was released on 1992 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment Transport Modeling written by S. Y. Wang and published by Amer Society of Civil Engineers. This book was released on 1989-01-01 with total page 829 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Engineering Hydrology written by Saeid Eslamian and published by CRC Press. This book was released on 2014-03-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: While most books only examine the classical aspects of hydrology, the three-volume set covers multiple aspects of hydrology, and includes contributions from experts from more than 30 countries. It examines new approaches, addresses growing concerns about hydrological and ecological connectivity, and considers the worldwide impact of climate change. It also provides updated material on hydrological science and engineering, discussing recent developments as well as classic approaches. Published in three books, Fundamentals and Applications; Modeling, Climate Change, and Variability; and Environmental Hydrology and Water Management, the entire set consists of 87 chapters, and contains 29 chapters in each book. The chapters in this book contain information on: Long-term generation of scheduling of hydro plants, check dam selection procedures in rainwater harvesting, and stochastic reservoir analysis Ecohydrology for engineering harmony in the changing world, concepts, and plant water use Conjunctive use of groundwater and surface water Hydrologic and hydraulic design in green infrastructure Data processing in hydrology, optimum hydrometric site selection and quality control, and homogenization of climatological series Cold region hydrology, evapotranspiration, and water consumption Modern flood prediction and warning systems, and satellite-based systems for flood monitoring and warning Catchment water yield estimation, hydrograph analysis and base flow separation, and low flow hydrology Sustainability in urban water systems and urban hydrology Students, practitioners, policy makers, consultants and researchers can benefit from the use of this text.
Download or read book Red River Waterway Sedimentation Study Downstream from Lock and Dam No 1 written by Ronald R. Copeland and published by . This book was released on 1988 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scour and Erosion written by Susan Burns and published by . This book was released on 2014 with total page 1152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling and Practice of Erosion and Sediment Transport under Change written by Mohamed Meddi and published by MDPI. This book was released on 2019-09-17 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate and anthropogenic changes impact the conditions of erosion and sediment transport in rivers. Rainfall variability and, in many places, the increase of rainfall intensity have a direct impact on rainfall erosivity. Increasing changes in demography have led to the acceleration of land cover changes in natural areas, as well as in cultivated areas, and, sometimes, in degraded areas and desertified landscapes. These anthropogenized landscapes are more sensitive to erosion. On the other hand, the increase in the number of dams in watersheds traps a great portion of sediment fluxes, which do not reach the sea in the same amount, nor at the same quality, with consequences on coastal geomorphodynamics. This book is dedicated to studies on sediment fluxes from continental areas to coastal areas, as well as observation, modeling, and impact analysis at different scales from watershed slopes to the outputs of large river basins. This book is concentrated on a number of keywords: “erosion” and “sediment transport”, “model” and “practice”, and “change”. The keywords are briefly discussed with respect to the relevant literature. The contributions in this book address observations and models based on laboratory and field data, allowing researchers to make use of such resources in practice under changing conditions.
Download or read book Mississippi River and Tributaries Project written by Edward B. Madden and published by . This book was released on 1974 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reservoir Sedimentation Handbook written by Gregory L. Morris and published by McGraw Hill Professional. This book was released on 1998 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on reservoir sedimentation management and control, this work defines the nature and severity of sedimentation, reviews relevant physical processes, describes techniques used to combat sedimentation, and presents detailed case studies.
Download or read book Erosion and Sedimentation Manual written by and published by Government Printing Office. This book was released on 2006 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOTE: NO FURTHER DISCOUNT FOR THIS PRINT PRODUCT--OVERSTOCK SALE --Significantly reduced list price while supplies last The Erosion and Sedimentation Manual provides a comprehensive coverage of subjects in nine chapters (i.e., introduction, erosion and reservoir sedimentation, noncohesive sediment transport, cohesive sediment transport, sediment modeling for rivers and reservoirs, sustainable development and use of reservoirs, river process and restoration, dam decommissioning and sediment management, and reservoir surveys and data analysis). Each chapter is self-contained, with cross references of subjects that are discussed in different chapters of this manual. The manual also includes a list of commonly used notations used in the erosion and sedimentation literature, conversion factors between the Imperial and metric units, physical properties of water, and author and subject indexes for easy reference. Each chapter has a list of reference for readers who would like to seek out more detailed information on specific subjects. Audience The manual would be useful for researchers, university professors, graduate students, geologists, hydrographic survey analysts, municipal and state water research specialists, and engineers in solving erosion and sedimentation problems. Related products: Earth Science resources collection can be found here: https: //bookstore.gpo.gov/catalog/science-technology/earth-science
Download or read book Sedimentation Control to Reduce Maintenance Dredging of Navigational Facilities in Estuaries written by National Research Council and published by National Academies Press. This book was released on 1987-02-01 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrodynamics and Water Quality written by Zhen-Gang Ji and published by John Wiley & Sons. This book was released on 2017-07-05 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary reference for the modeling of hydrodynamics and water quality in rivers, lake, estuaries, coastal waters, and wetlands This comprehensive text perfectly illustrates the principles, basic processes, mathematical descriptions, case studies, and practical applications associated with surface waters. It focuses on solving practical problems in rivers, lakes, estuaries, coastal waters, and wetlands. Most of the theories and technical approaches presented within have been implemented in mathematical models and applied to solve practical problems. Throughout the book, case studies are presented to demonstrate how the basic theories and technical approaches are implemented into models, and how these models are applied to solve practical environmental/water resources problems. This new edition of Hydrodynamics and Water Quality: Modeling Rivers, Lakes, and Estuaries has been updated with more than 40% new information. It features several new chapters, including one devoted to shallow water processes in wetlands as well as another focused on extreme value theory and environmental risk analysis. It is also supplemented with a new website that provides files needed for sample applications, such as source codes, executable codes, input files, output files, model manuals, reports, technical notes, and utility programs. This new edition of the book: Includes more than 120 new/updated figures and 450 references Covers state-of-the-art hydrodynamics, sediment transport, toxics fate and transport, and water quality in surface waters Provides essential and updated information on mathematical models Focuses on how to solve practical problems in surface waters—presenting basic theories and technical approaches so that mathematical models can be understood and applied to simulate processes in surface waters Hailed as “a great addition to any university library” by the Journal of the American Water Resources Association (July 2009), Hydrodynamics and Water Quality, Second Edition is an essential reference for practicing engineers, scientists, and water resource managers worldwide.
Download or read book Bridge Scour and Stream Instability Countermeasures written by U. S. Department of Transportation and published by . This book was released on 2015-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this document is to identify and provide design guidelines for bridge scour and stream instability countermeasures that have been implemented by various State departments of transportation (DOTs) in the United States. Countermeasure experience, selection, and design guidance are consolidated from other FHWA publications in this document to support a comprehensive analysis of scour and stream instability problems and provide a range of solutions to those problems. The results of recently completed National Cooperative Highway Research Program (NCHRP) projects are incorporated in the design guidance, including: countermeasures to protect bridge piers and abutments from scour; riprap design criteria, specifications, and quality control, and environmentally sensitive channel and bank protection measures. Selected innovative countermeasure concepts and guidance derived from practice outside the United States are introduced. In addition, guidance for the preparation of Plans of Action ...
Download or read book Sediment Budgets written by D. E. Walling and published by . This book was released on 2005 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
