Download or read book Hydrodynamic Modeling of the Columbia River Estuary written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrodynamic Modeling of the Columbia River Estuary written by Peter Hamilton and published by . This book was released on 1984 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Long Term Changes to the Lower Columbia River Estuary LCRE Hydrodynamics and Salinity Patterns written by and published by . This book was released on 2020 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changing the morphological and hydrological conditions of an estuary can affect the estuarine hydrodynamics. The hydrograph of the Lower Columbia River Estuary (LCRE) and its bathymetry have been altered significantly over the past 150 years, such that the spring-freshet has decreased by 40-50% while winter flow has increased by 50%. In addition, the inlet width has been narrowed from 9.7 to 3.2km by the construction of jetties, and the controlling depth of the navigation channel has been deepened from 6 to 13m by continuous dredging. Also, ~70% of the shallow water habitat has been lost due to diking and wetland reclamation. Finally, the main shipping channel was changed from the north to the south side of the estuary. These system alterations lead to the following question: how have changes since the mid-1800s altered the salinity intrusion, freshwater distribution, transport processes, and water levels in the Lower Columbia River estuary? In this study, I use a 3D hydrodynamic model to gain insights into changes in circulation and salinity intrusion from the mid-1800s to the present. Two models were constructed: one based on bathymetric measurements made between 1869 and 1900, and a second based on bathymetric surveys made from 2008 to 2010. Analysis of flow bifurcation (water distribution between channels at a junction) showed that morphology, tidal forcing, and water surface slope have played major roles in freshwater distribution in the multi-channel estuary.

Download or read book Model Studies of Navigation Improvements Columbia River Estuary written by Frank A. Herrmann and published by . This book was released on 1971 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tidal Prism Measurements at Mouth of Columbia River written by Frank A. Herrmann and published by . This book was released on 1970 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Dynamics of the Columbia River Estuarine Ecosystem written by and published by . This book was released on 1984 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Columbia River Estuary Hybrid Model Studies written by and published by . This book was released on 1983 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field and Laboratory Studies Navigation Channels of the Columbia River Estuary written by Morrough Parker O'Brien and published by . This book was released on 1971 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: A model of the estuary of the Columbia River was built and tested at the University of California, Berkeley, during the years 1932 to 1936 to study the effect of proposed changes in the navigation channels on the currents and sediment movement. The report deals primarily with the model itself and not with the practical problems of channel maintenance and improvement, but some information regarding the regimen of the Columbia is necessary background for understanding the problems which were to be studied in the model. (Author).

Download or read book Discharge and Flow Distribution Columbia River Estuary written by Gale A. Lutz and published by . This book was released on 1973 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phenomena Affecting Improvement of the Lower Columbia Estuary and Entrance written by John B. Lockett and published by . This book was released on 1963 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mathematical Model of the Columbia River from the Pacific Ocean to Bonneville Dam written by Richard J. Callaway and published by . This book was released on 1969 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Model Studies of Navigation Improvements Columbia River Estuary written by Frank A. Herrmann and published by . This book was released on 1972 with total page 72 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 612 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 Columbia River Estuary Hybrid Model Studies written by William H. McAnally and published by . This book was released on 1983 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Columbia River Estuary Hybrid Model Studies written by William H. McAnally and published by . This book was released on 1983 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Salinity Characteristics of Gulf of Mexico Estuaries written by and published by . This book was released on 1993 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Perspectives on Deep water Sandstones written by G. Shanmugam and published by Elsevier. This book was released on 2012-03-14 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is vital for understanding the origin of deep-water sandstones, emphasizing sandy-mass transport deposits (SMTDs) and bottom-current reworked sands (BCRSs) in petroleum reservoirs. This cutting-edge perspective, a pragmatic alternative to the conventional turbidite concepts, is crucial because the turbidite paradigm is built on a dubious foundation without empirical data on sandy turbidity currents in modern oceans. In the absence of evidence for sandy turbidity currents in natural environments, elegant theoretical models and experimental observations of turbidity currents are irrelevant substitutes for explaining the origin of sandy deposits as "turbidites." In documenting modern and ancient SMTDs (sandy slides, sandy slumps, and sandy debrites) and BCRSs (deposits of thermohaline [contour] currents, wind-driven currents, and tidal currents), the author describes and interprets core and outcrop (1:20 to 1:50 scale) from 35 case studies worldwide (which include 32 petroleum reservoirs), totaling more than 10,000 m in cumulative thickness, carried out during the past 36 years (1974-2010). The book dispels myths about the importance of sea level lowstand and provides much-needed clarity on the triggering of sediment failures by earthquakes, meteorite impacts, tsunamis, and cyclones with implications for the distribution of deep-water sandstone petroleum reservoirs. Promotes pragmatic interpretation of deep-water sands using alternative possibilities Validates the economic importance of SMTDs and BCRS in deep-water exploration and production Rich in empirical data and timely new perspectives