Analysis And Modelling Of River Meandering
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Analysis And Modelling Of River Meandering
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Author : Alessandra Crosato
language : en
Publisher: IOS Press
Release Date : 2008
Analysis And Modelling Of River Meandering written by Alessandra Crosato and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Computers categories.
This thesis examines the morphological changes of non-tidal meandering rivers at the spatial scale of several meanders. With this purpose, a physics-based mathematical model, MIANDRAS, has been developed for the simulation of the medium-term to long-term evolution of meandering rivers. Application to several real rivers shows that MIANDRAS can properly simulate both equilibrium river bed topography and planimetric changes. Three models of different complexity can be obtained by applying different degrees of simplification to the equations. These models, along with experimental tests and field data, constitute the tools for several analyses. At conditions of initiation of meandering, it is found that river bends can migrate upstream and downstream. This depends on meander wave length and width-to-depth ratio, irrespective of whether the parameters are in the subresonant or the superresonant range.
River Dynamics
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Author : Bruce L. Rhoads
language : en
Publisher: Cambridge University Press
Release Date : 2020-04-29
River Dynamics written by Bruce L. Rhoads and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-29 with Science categories.
Rivers are important agents of change that shape the Earth's surface and evolve through time in response to fluctuations in climate and other environmental conditions. They are fundamental in landscape development, and essential for water supply, irrigation, and transportation. This book provides a comprehensive overview of the geomorphological processes that shape rivers and that produce change in the form of rivers. It explores how the dynamics of rivers are being affected by anthropogenic change, including climate change, dam construction, and modification of rivers for flood control and land drainage. It discusses how concern about environmental degradation of rivers has led to the emergence of management strategies to restore and naturalize these systems, and how river management techniques work best when coordinated with the natural dynamics of rivers. This textbook provides an excellent resource for students, researchers, and professionals in fluvial geomorphology, hydrology, river science, and environmental policy.
River Flow 2016
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Author : George Constantinescu
language : en
Publisher: CRC Press
Release Date : 2016-06-22
River Flow 2016 written by George Constantinescu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-22 with Technology & Engineering categories.
Understanding and being able to predict fluvial processes is one of the biggest challenges for hydraulics and environmental engineers, hydrologists and other scientists interested in preserving and restoring the diverse functions of rivers. The interactions among flow, turbulence, vegetation, macroinvertebrates and other organisms, as well as the transport and retention of particulate matter, have important consequences on the ecological health of rivers. Managing rivers in an ecologically friendly way is a major component of sustainable engineering design, maintenance and restoration of ecological habitats. To address these challenges, a major focus of River Flow 2016 was to highlight the latest advances in experimental, computational and theoretical approaches that can be used to deepen our understanding and capacity to predict flow and the associated fluid-driven ecological processes, anthropogenic influences, sediment transport and morphodynamic processes. River Flow 2016 was organized under the auspices of the Committee for Fluvial Hydraulics of the International Association for Hydro-Environment Engineering and Research (IAHR). Since its first edition in 2002, the River Flow conference series has become the main international event focusing on river hydrodynamics, sediment transport, river engineering and restoration. Some of the highlights of the 8th International Conference on Fluvial Hydraulics were to focus on inter-disciplinary research involving, among others, ecological and biological aspects relevant to river flows and processes and to emphasize broader themes dealing with river sustainability. River Flow 2016 (extended abstract book 854 pages + full paper CD-ROM 2436 pages) contains the contributions presented during the regular sessions covering the main conference themes and the special sessions focusing on specific hot topics of river flow research, and will be of interest to academics interested in hydraulics, hydrology and environmental engineering.
River Sedimentation
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Author : Silke Wieprecht
language : en
Publisher: CRC Press
Release Date : 2016-11-30
River Sedimentation written by Silke Wieprecht and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-11-30 with Science categories.
Sediment dynamics in fluvial systems is of great ecological, economic and human-health-related significance worldwide. Appropriate management strategies are therefore needed to limit maintenance costs as well as minimize potential hazards to the aquatic and adjacent environments. Human intervention, ranging from nutrient/pollutant release to physical modifications, has a large impact on sediment quantity and quality and thus on river morphology as well as on ecological functioning. Truly understanding sediment dynamics requires as a consequence a multidisciplinary approach.River Sedimentation contains the peer-reviewed scientific contributions presented at the 13th International Symposium on River Sedimentation (ISRS 2016, Stuttgart, Germany, 19-22 September 2016), and includes recent accomplishments in theoretical developments, numerical modelling, experimental laboratory work, field investigations and monitoring as well as management methodologies.
River Coastal And Estuarine Morphodynamics Rcem 2009 Two Volume Set
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Author : Carlos Vionnet
language : en
Publisher: CRC Press
Release Date : 2018-10-03
River Coastal And Estuarine Morphodynamics Rcem 2009 Two Volume Set written by Carlos Vionnet and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-03 with Science categories.
Coastal, estuarine, fluvial and submarine morphodynamics encompass some of the leading processes shaping our planet. They stem mainly, but not only, from the interaction of water in motion and movable sediment boundaries, resulting in morphological changes produced by erosion, transport and deposition of sediments that generate a variety of landsca
Fluvial Processes
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Author : Ana Maria Ferreira da Silva
language : en
Publisher: CRC Press
Release Date : 2017-09-20
Fluvial Processes written by Ana Maria Ferreira da Silva and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-20 with Science categories.
A stream flowing in alluvium deforms its bed surface, forming ripples, dunes, bars, etc., and, in many instances, it deforms its channel entirely, thereby creating meandering or braiding patterns. It could be said that, in general, an alluvial stream and its deformable boundary undergo a variety of fluvial processes leading to the emergence of a multitude of alluvial forms. This book concerns the physics and analytical treatment of various fluvial processes and the associated alluvial bed and plan forms listed above. Following an introductory chapter on the basics of turbulent flow and sediment transport, the book covers the origin, geometric characteristics and effects of bed forms, from small- to meso-scale (ripples, dunes, alternate and multiple bars); the initiation, geometry and mechanics of meandering streams; the computation of flow, bed deformation and the planimetric evolution of meandering streams; and braiding and delta formation. The book also covers the regime concept, the time-development of a stream towards its regime state, and the formulation of stable, or equilibrium, morphology. The book distinguishes itself by its comprehensive analysis and discussion of key processes involved in large-scale river morphodynamics. The book was written primarily for researchers and graduate students of hydraulic engineering, water resources and related branches of earth sciences, but it will also prove useful for river engineers and managers.
Statistical Analysis Of Meandering River Geometry
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Author : Ting Pao Chang
language : en
Publisher:
Release Date : 1969
Statistical Analysis Of Meandering River Geometry written by Ting Pao Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Geomorphology categories.
River Dynamism Mapping And Analysis
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Author : Temitope D. Timothy Oyedotun
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2012
River Dynamism Mapping And Analysis written by Temitope D. Timothy Oyedotun and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
The great attention which rivers have attracted shows the dynamic nature of this vital component of hydrological open system, where energy and matters are exchanged with external environment. The dynamic entities of rivers' characteristics vary over both space and time. On whatever perspective and scale at which the rivers may be studied, they always have relevance in social, environmental, economic and political situations. Because of the dynamism of rivers, studying them cannot be exhaustive. Various studies which have been carried out world-wide have shown that active rivers rarely maintained the stability of their form or morphological features for a long period of time, instead they show some progressive changes and developments as the years rolled by. In this work, the focus was to use the instrumentality of Geographic Information System (GIS) to investigate, map and analyse the changes in a river's dynamic meandering channel system, using River Liza in Cumbria, England as case study. Cartographical modelling, planform morphological analysis, probability modelling and cross-sectional analysis were methods of analyses employed in the study.
Fluvial Meanders And Their Sedimentary Products In The Rock Record Ias Sp 48
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Author : Massimiliano Ghinassi
language : en
Publisher: John Wiley & Sons
Release Date : 2019-01-22
Fluvial Meanders And Their Sedimentary Products In The Rock Record Ias Sp 48 written by Massimiliano Ghinassi and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-22 with Science categories.
The sinuous form and peculiar evolution of meandering rivers has long captured the imagination of people. Today, meandering rivers exist in some of the most densely populated areas in the World, where they provide environmental and economic wealth and opportunities, as well as posing hazards. Through geological time, the ancestors of these modern meanders built deposits that are now host to mineral resources, groundwater, and hydrocarbons. This Special Publication illustrates the breadth of current research on meandering rivers and their deposits. The collection of research papers demonstrates the state of science on fluvial process–product relationships. The articles cover fundamental and applied studies of both modern and ancient rivers, are based on state-of-the-art technology, include complementary philosophical approaches, and span a wide range of spatial and temporal scales. This book includes some of the most recent advances in the study of the morphodynamics and sedimentology of meandering rivers, and is an important resource for those who want to investigate fluvial systems and their deposits.
Advances In Spatio Temporal Analysis
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Author : Xinming Tang
language : en
Publisher: CRC Press
Release Date : 2007-08-23
Advances In Spatio Temporal Analysis written by Xinming Tang and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-08-23 with Science categories.
Developments in Geographic Information Technology have raised the expectations of users. A static map is no longer enough; there is now demand for a dynamic representation. Time is of great importance when operating on real world geographical phenomena, especially when these are dynamic. Researchers in the field of Temporal Geographical Information Systems (TGIS) have been developing methods of incorporating time into geographical information systems. Spatio-temporal analysis embodies spatial modelling, spatio-temporal modelling and spatial reasoning and data mining. Advances in Spatio-Temporal Analysis contributes to the field of spatio-temporal analysis, presenting innovative ideas and examples that reflect current progress and achievements.