Estuaries

A Physical Introduction

Author: Keith R. Dyer

Publisher: John Wiley & Son Limited

ISBN: N.A

Category: Science

Page: 195

View: 2649

Estuaries is a comprehensive introductory text emphasizing the physical processes involved in the mixing of sea and river water and the transport of fine sediments within the complex estuarine topographic context. The theoretical and mathematical formulation of these processes are treated at a fairly elementary level, and are used to develop a foundation for more extensive study. The second edition retains the classical approaches to the tidally averaged circulation and mixing conditions but broadens them to consider recent advances in the understanding of processes occurring within the tide. The scope has also been widened to include more detail on the morphology of estuaries and their development, the fluxes of suspended fine sediments, and the generation and maintenance of turbidity maximum. The book provides an excellent introduction for research students in oceanography, environmental science, geography, geology, and water and coastal engineering. It will also be useful as a reference book for those working in water quality, morphological modelling and estuarine environmental management.
Release

Fundamentals of Estuarine Physical Oceanography

Author: Luiz Bruner de Miranda,Fernando Pinheiro Andutta,Björn Kjerfve,Belmiro Mendes de Castro Filho

Publisher: Springer

ISBN: 9811030413

Category: Science

Page: 480

View: 2663

This book provides an introduction to the complex system functions, variability and human interference in ecosystem between the continent and the ocean. It focuses on circulation, transport and mixing of estuarine and coastal water masses, which is ultimately related to an understanding of the hydrographic and hydrodynamic characteristics (salinity, temperature, density and circulation), mixing processes (advection and diffusion), transport timescales such as the residence time and the exposure time. In the area of physical oceanography, experiments using these water bodies as a natural laboratory and interpreting their circulation and mixing processes using theoretical and semi-theoretical knowledge are of fundamental importance. Small-scale physical models may also be used together with analytical and numerical models. The book highlights the fact that research and theory are interactive, and the results provide the fundamentals for the development of the estuarine research.
Release

Salt Intrusion, Tides and Mixing in Multi-Channel Estuaries

PhD: UNESCO-IHE Institute, Delft

Author: Anh Duc Nguyen

Publisher: CRC Press

ISBN: 9781439828342

Category: Science

Page: 174

View: 798

Multi-channel estuaries, such as the Mekong Delta in Vietnam and the Scheldt in the Netherlands, have characteristics of both the river and the sea, forming a unique environment influenced by tidal movements of the sea and freshwater flow of the river. This study addresses a number of knowledge gaps in multi-channel estuaries by developing a predictive analytical approach for salinity intrusion and discharge estimate in multi-channel estuaries. The new approach agrees well with 1-D hydrodynamic models and observations, indicating its applicability in practice. Most importantly, the study has successfully developed a new theory and a new equation to quantify tidal pumping due to ebb-flood channel residual circulation and the related salt dispersion.
Release

Estuaries

Author: N.A

Publisher: Academic Press

ISBN: 0080567134

Category: Science

Page: 320

View: 8550

The importance and ecological significance of estuaries has been long appreciated. In the last few years, there has been increased research activity, resulting in significant advances in understanding of estuarine ecology. This special thematic volume of Advances in Ecological Research provides an overview of a number of the important areas. Ranging from the macroscale: how differences in river basins influence the loads of nutrients, through the impacts and fates of the nutrient loads, to how both phytoplanktonic and benthic estuarine primary production are regulated. There is also a review of the key factors influencing the outcome of management decisions for estuaries from the point of sustainability of estuarine resources. This volume is essential reading and reference for all those interested in estuaries including ecologists, environmental scientists, botanists, and zoologists.
Release

Physical Processes in Estuaries

Author: Job Dronkers,Wim van Leussen

Publisher: Springer Science & Business Media

ISBN: 3642736912

Category: Science

Page: 560

View: 1477

In Physical Processes in Estuaries the present day knowledge of the physics of transport phenomena in estuaries and their mathematical treatment is summarized: It is divided into following parts: - Water movements in estuaries - Estuarine fronts and river plumes - Internal waves and interface stability - Fine sediment transport, aggregation of particles, settling velocity of mud flocs - Sedimentation and erosion of fine sediments. For each topic an up-to-date review and recommendations for future research are given, followed by results of original studies. Since estuarine environments are the first to be threatened by urbanization and industrial exploitation this book is an important tool for students and researchers of environmental problems as well as for consultants and water authorities.
Release

Estuaries

Dynamics, Mixing, Sedimentation and Morphology

Author: David Prandle

Publisher: Cambridge University Press

ISBN: 0521888867

Category: Science

Page: 236

View: 1220

This volume provides researchers, students, practising engineers and managers access to knowledge, practical formulae and new hypotheses for the dynamics, mixing, sediment regimes and morphological evolution in estuaries. The objectives are to explain the underlying governing processes and synthesise these into descriptive formulae which can be used to guide the future development of any estuary. Each chapter focuses on different physical aspects of the estuarine system - identifying key research questions, outlining theoretical, modeling and observational approaches, and highlighting the essential quantitative results. This allows readers to compare and interpret different estuaries around the world, and develop monitoring and modeling strategies for short-term management issues and for longer-term problems, such as global climate change. The book is written for researchers and students in physical oceanography and estuarine engineering, and serves as a valuable reference and source of ideas for professional research, engineering and management communities concerned with estuaries.
Release

Salinity and Tides in Alluvial Estuaries

Author: H.H.G. Savenije

Publisher: Elsevier

ISBN: 9780080461618

Category: Science

Page: 208

View: 1846

The book describes an integrated theory that links estuary shape to tidal hydraulics, tidal mixing and salt intrusion. The shape of an alluvial estuary is characterised by exponentially varying width and the absence of bottom slope. This topography is closely related to tidal parameters, hydraulic parameters and parameters that describe 1-dimensional mixing and salt intrusion. Starting from the fundamental equations for conservation of mass and momentum, analytical equations are derived that relate the topography to tidal parameters (tidal excursion, phase lag, tidal damping, tidal amplification), wave celerity, lateral and vertical mixing and salt intrusion. The book presents a review of the state of the art, a comprehensive theoretical background and ample case illustrations from all over the world. It provides tools with which human interference in estuary dynamics can be described and predicted, resulting from, for instance: upstream fresh water abstraction, dredging, climate change or sea-level rise. In describing the interactions between tide, topography, water quality and river discharge, it provides useful information for hydraulic engineers, morphologists, ecologists and people concerned with water quality in alluvial estuaries. Although the book can be used as a text book, it is mainly a monograph aimed at graduate students and researchers. * Provides new integrated theory for tidal hydraulics, tidal mixing and salt intrusion in alluvial estuaries * Presents a consistent set of analytical equations to compute tidal movement, tidal mixing and salt intrusion, derived from the fundamental laws of conservation of mass and momentum * Serves as a practical guide with many illustrations of applications in real estuaries
Release

A Rehabilitated Estuarine Ecosystem

The environment and ecology of the Thames Estuary

Author: Martin J. Attrill

Publisher: Springer Science & Business Media

ISBN: 9780412496806

Category: Science

Page: 254

View: 762

Jim Green 1.1 THE THAMES ESTUARY:A PERSONAL VIEW For almost 50 years I have lived close to the Thames estuary (Figure 1.1). In the early 1950s, from our flat in Pimlico, we could walk along the embankment opposite Battersea Power Station. At low tide, the exposed mud had large red patches caused by the haemoglobin in innumerable tubificid worms. These formed the basis of a minor trade. Men with waders and sieves would collect the worms and sell them to the aquarium trade as food for fishes.The superabundance of these worms depended on the gross organic pollution of this reach of the Thames. Towards the end of the 1950s we moved to Teddington, within a few minutes' walk from the lock. Casual observation of the birds on the river indicates an increase in the piscivores over the last 20 years.Cormorants tPhalacrocorax carbo) are regularly seen, and grey herons (Ardea cinerea) are more abundant. On a good day it is possible to see up to eight herons around the weir and below the lock. Another bird that is now common­ place in the area is the great-crested grebe (Podiceps cristatus).The regular mallard (Anas platyrhynchos)and Canada geese (Branta canadensis)are some­ times joined by tufted duck (Aythafuligula)and mandarin (Aixgalericulata).
Release

Collected Reprints

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Marine meteorology

Page: N.A

View: 3726

Release

Rivers of the United States, Estuaries

Author: Ruth Patrick

Publisher: Wiley

ISBN: 9780471303459

Category: Nature

Page: 825

View: 2033

Volume I includes information on tides and other energy sources, sediment distribution and dynamics, nutrient cycling, ecology, aquatic communities, species (flora and fauna), habitats, and productivity. Volume II covers weathering, erosion, drainage classification, principal river basins (with area, flow, and discharge statistics), effects of climate, (precipitation and runoff) hydrology, organic carbon, equilibrium in groundwater, and trace metals.
Release

Dispersion in Estuaries and Coastal Waters

Author: Roy Lewis

Publisher: Wiley

ISBN: 9780471961628

Category: Technology & Engineering

Page: 328

View: 9015

Dispersion in Estuaries and Coastal Waters describes the physical processes which result in the dilution of a substance in the marine environment. The emphasis is mainly on the fundamental mechanisms of dispersion and the occurrence of these processes in estuaries and coastal waters Aspects of the present understanding of fluid dynamics in homogenous and stratified flows are discussed, with particular reference to the relevance of flow conditions to the turbulent state. The book describes how the associated dispersion processes are represented in mathematical models to quantify dilution in marine systems and the experimental techniques used to derive the mixing parameters required for the models. Concluding by discussing the application of the concepts of dispersion in well mixed, stratified and partially mixed systems, Dispersion in Estuaries and Coastal Waters acts as an excellent guide book for those needing to solve practical problems relating to marine dispersion. It also provides a useful review of dispersion as it cites key publications, both recent and long-standing, which are invaluable in interpreting and quantifying the dilution and fate of material in the marine environment.
Release

Estuarine transport processes

symposium

Author: United States. Office of Naval Research. Geography Programs,United States. National Oceanic and Atmospheric Administration. Office of Sea Grant,University of South Carolina,Belle W. Baruch Institute for Marine Biology and Coastal Research

Publisher: N.A

ISBN: N.A

Category: Science

Page: 331

View: 4231

Release

Literature Review of Marine Wetland and Estuarine Water Quality and Ecosystem Models

Final Report

Author: Peter Hamilton,Kenneth W. Fucik

Publisher: N.A

ISBN: N.A

Category: Estuaries

Page: 51

View: 3235

This literature review surveys published models of hydrodynamics, sediment transport, water quality, and ecosystems in estuaries and intertidal wetlands. The review was based on the needs and problems of the U.S. Army Corps of Engineers (CE) in the coastal zone as revealed by a survey of CE Field Offices with coastal responsibility. In addition, a workshop, conducted in New Orleans in June 1979, assessing the state of the art in understanding and modeling estuarine and wetland processes, served to define the scope of the literature review. (Author).
Release

The estuarine ecosystem

Author: Donald S. McLusky

Publisher: N.A

ISBN: 9780216911161

Category: Science

Page: 150

View: 574

Release

Estuarine Beaches

An introduction to the physical and human factors affecting use and management of beaches in estuaries, lagoons, bays and fjords

Author: K.F. Nordstrom

Publisher: Springer Science & Business Media

ISBN: 9781851667284

Category: Science

Page: 226

View: 2555

The purpose of this book is to supply the background needed to structure research on estuarine beach resources and provide the basis for a program for informed management. The book is a synthesis of data on physical, biological, and human processes.
Release