Download or read book Quantitative Evaluation of a Lightweight Sediment for a Physical Model of the Lower Mississippi River written by Mauricio Jesus Hooper de Leon and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Downward Trend in Mississippi River Suspended sediment Loads written by and published by . This book was released on 1990 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report on Feasibility of Small Scale Physical Model of the Lower Mississippi River Delta for Testing Water and Sediment Diversion Projects written by and published by . This book was released on 2004 with total page 234 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 SSPM Feasibility Tests Final Report Projects written by Brown Cunningham Gannuch (Firm) and published by . This book was released on 2004 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bed Sediment Sampling and Analysis for Physical and Chemical Properties of the Lower Mississippi River Near Memphis Tennessee written by Robert Allen Blanchard and published by . This book was released on 2010 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Physical Sediment Modeling of the Mississippi River on a Micro Scale written by Robert Dale Davinroy and published by . This book was released on 1994 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lower Mississippi River Sediment Study Geomorphic assessment written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sediment Transport Dynamics in the Lower Mississippi River written by Jeffrey Albert Nittrouer and published by . This book was released on 2010 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation examines the dynamics of sediment transport and channel morphology in the lower Mississippi River. The area of research includes the portion of the river where reach-averaged downstream flow velocity responds to the boundary condition imposed by the relatively uniform water-surface elevation of the receiving basin. Observational studies provided data that are used to identify channel-bed sediment composition, and measure bed-material sediment flux and the properties of the fluid-flow field over a variety of water-discharge conditions. The analyses demonstrate that a significant portion of the channel bed of the final 165 kilometers of the Mississippi River consists of exposed and eroding underlying relict sedimentary strata that qualify as surrogate bedrock. The exposed bedrock is confined to the channel thalweg, particularly in river-bend segments, and actively mobile bed-material sediments are positioned on subaqueous bars fixed by river planform. The analyses for sediment flux provides insight to the nature of sediment transport: during low- and moderate-water discharge, bed-material movement occurs primarily as minimal bedform flux, and so bed materials are not transferred between alluvial bars. During high-water discharge, bed-material transport increases one-hundred fold, and sands move as a part of both suspended and bedform transport. Physical models are used to show that skin-friction shear stress increases by a factor of ten for the measured water-discharge range. This change is not possible given conditions of uniform water flow, and therefore non-uniform flow in response to the Mississippi River approaching its outlet has a significant impact on the timing and magnitude of sediment flux through the lower river. In order to estimate the dynamics of bed material movement from the uniform to non-uniform segment of the river (lower 800 km), data for channel morphology are used to construct a model that predicts spatial changes in water-flow velocity and bed-material flux over a range of water-discharge conditions. The model demonstrates that non-uniform flow tends to produce a region of net channel-bed aggradation between 200-700 kilometers above the outlet, and a region of channel-bed degradation for the final 200. The implication for these results for the spatial variability of channel morphology and kinematics is explored.

Download or read book An Evaluation of Stratigraphic Implications of Physical Properties written by Karen 'Cele McBride and published by . This book was released on 1997 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lower Mississippi River Sediment Study HEC 6W Mississippi River numerical sedimentation model investigation Vicksburg to Donaldsonville written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling of the Hydrodynamics and Sediment Transport in the Lower Mississippi River Using a One dimensional Model written by Ahmed M. Gaweesh and published by . This book was released on 2006 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lower Mississippi River Sediment Study written by Catalyst-Old River Hydroelectric Limited Partnership and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lower Mississippi River Sediment Study HEC 6T Red written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lower Mississippi River Sediment Study CH3D SED computational modeling of the Old River Control Complex written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: