WASP4, a Hydrodynamic and Water Quality Model

WASP4, a Hydrodynamic and Water Quality Model PDF Author: Robert B. Ambrose
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 320

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WASP4, a Hydrodynamic and Water Quality Model

WASP4, a Hydrodynamic and Water Quality Model PDF Author: Robert B. Ambrose
Publisher:
ISBN:
Category : Hydrodynamics
Languages : en
Pages : 320

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Book Description


Hydrodynamics and Transport for Water Quality Modeling

Hydrodynamics and Transport for Water Quality Modeling PDF Author: James L. Martin
Publisher: CRC Press
ISBN: 1351439871
Category : Technology & Engineering
Languages : en
Pages : 820

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Book Description
Hydrodynamics and Transport for Water Quality Modeling presents a complete overview of current methods used to describe or predict transport in aquatic systems, with special emphasis on water quality modeling. The book features detailed descriptions of each method, supported by sample applications and case studies drawn from the authors' years of experience in the field. Each chapter examines a variety of modeling approaches, from simple to complex. This unique text/reference offers a wealth of information previously unavailable from a single source. The book begins with an overview of basic principles, and an introduction to the measurement and analysis of flow. The following section focuses on rivers and streams, including model complexity and data requirements, methods for estimating mixing, hydrologic routing methods, and unsteady flow modeling. The third section considers lakes and reservoirs, and discusses stratification and temperature modeling, mixing methods, reservoir routing and water balances, and dynamic modeling using one-, two-, and three-dimensional models. The book concludes with a section on estuaries, containing topics such as origins and classification, tides, mixing methods, tidally averaged estuary models, and dynamic modeling. Over 250 figures support the text. This is a valuable guide for students and practicing modelers who do not have extensive backgrounds in fluid dynamics.

River Water Quality Model

River Water Quality Model PDF Author: P. Reichert
Publisher: IWA Publishing
ISBN: 9781900222822
Category : Science
Languages : en
Pages : 150

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Book Description
This Scientific and Technical Report (STR) presents the findings of the IWA Task Group on River Water Quality Modelling (RWQM). The task group was formed to create a scientific and technical base from which to formulate standardized, consistent river water quality models and guidelines for their implementation. This STR presents the first outcome in this effort: River Water Quality Model No. 1 (RWQM1). As background to the development of River Water Quality Model No.1, the Task Group completed a critical evaluation of the current state of the practice in water quality modelling. A major limitation in model formulation is the continued reliance on BOD as the primary state variable, despite the fact BOD does not include all biodegradable matter. A related difficulty is the poor representation of benthic flux terms. As a result of these limitations, it is impossible to close mass balances completely in most existing models. These various limitations in current river water quality models impair their predictive ability in situations of marked changes in a river's pollutant load, streamflow, morphometry, or other basic characteristics. RWQM 1 is intended to serve as a framework for river water quality models that overcome these deficiencies in traditional water quality models and most particularly the failure to close mass balances between the water column and sediment. To these ends, the model incorporates fundamental water quality components and processes to characterise carbon, oxygen, nitrogen, and phosphorus (C, O, N, and P) cycling instead of biochemical oxygen demand as used in traditional models. The model is presented in terms of process and components represented via a 'Petersen stoichiometry matrix', the same approach used for the IWA Activated Sludge Models. The full RWQM1 includes 24 components and 30 processes. The report provides detailed examples on reducing the numbers of components and processes to fit specific water quality problems. Thus, the model provides a framework for both complicated and simplified models. Detailed explanations of the model components, process equations, stoichiometric parameters, and kinetic parameters are provided, as are example parameter values and two case studies. The STR is intended to launch a participatory process of model development, application, and refinement. RWQM1 provides a framework for this process, but the goal of the Task Group is to involve water quality professionals worldwide in the continued work developing a new water quality modelling approach. This text will be an invaluable reference for researchers and graduate students specializing in water resources, hydrology, water quality, or environmental modelling in departments of environmental engineering, natural resources, civil engineering, chemical engineering, environmental sciences, and ecology. Water resources engineers, water quality engineers and technical specialists in environmental consultancy, government agencies or regulated industries will also value this critical assessment of the state of practice in water quality modelling. Key Features presents a unique new technical approach to river water quality modelling provides a detailed technical presentation of the RWQM1 water quality process model gives an informative critical evaluation of the state of the practice in water quality modelling, and problems with those practices provides a step by step procedure to develop a water quality model Scientific & Technical Report No. 12

Computer Models for Water-Resources Planning and Management

Computer Models for Water-Resources Planning and Management PDF Author: Ralph A. Wurbs
Publisher: DIANE Publishing
ISBN: 0788141708
Category :
Languages : en
Pages : 229

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Book Description
This report is designed to help water managers & planners who are not expert in modeling, & modeling experts in one area who are interested in surveying available models in another area. Covers: model development & distribution org's.; general-purpose software; demand forecasting & balancing supply with demand; water distribution system models; ground water models; watershed runoff models; stream, hydraulics models; river & reservoir water quality models; & reservoir/river system operation models. Inventory of selected models appendix. Tables.

Water Quality Modeling

Water Quality Modeling PDF Author: Steven C. McCutcheon
Publisher: CRC Press
ISBN: 9780849369711
Category : Science
Languages : en
Pages : 348

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Book Description
This fascinating work is divided into two main sections. Part I reviews the basic principles of water movement in channels and the mass balance approach common to most models. It also covers the practical usefulness, model peer review, and guidance on model selection and calibration. Part II discusses flow simulation and prediction of time of travel, dye tracing and mixing, heat balance and temperature modeling, and reaeration and volatilization. This interesting, easy-to-read volume includes comprehensive reviews for the use of fluorescent water tracing dyes, longitudinal dispersion, evaporation and wind speed functions, prediction of saturation concentrations of dissolved oxygen, and reaeration coefficients. This book furnishes the reader with appendices which provide a synopsis of available computer models and gives a comprehensive listing of methods used to measure flow rates in rivers, tributaries, and pipes and channels introducing wastewaters into streams. This volume is a valuable, indispensable reference for all researchers, instructors, students in advanced environmental modeling courses, and practicing engineers.

South San Francisco Bay Water Quality Modeling and Waste Load Allocation Study

South San Francisco Bay Water Quality Modeling and Waste Load Allocation Study PDF Author: Pei-Fang Wang
Publisher:
ISBN:
Category : Water quality
Languages : en
Pages : 172

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Book Description


Water Management Models

Water Management Models PDF Author: Ralph A. Wurbs
Publisher: Pearson Education
ISBN: 0132441527
Category : Technology & Engineering
Languages : en
Pages : 493

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Book Description
Water Management Models: A Guide to Software is designed to make the inventory of modeling tools more accessible to water management professionals. The purpose of the book is to assist water managers, planners, engineers, and scientists in sorting through the maze of models to understand which ones might be most useful for their particular modeling needs. Information is provided to facilitate identification, selection, and acquisition of software packages for a broad spectrum of water resources planning and management applications.

Selected Water Resources Abstracts

Selected Water Resources Abstracts PDF Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 884

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Technical guidance manual for performing waste load allocations book III estuariespart 2 application of estuarine waste load allocation models.

Technical guidance manual for performing waste load allocations book III estuariespart 2 application of estuarine waste load allocation models. PDF Author:
Publisher: DIANE Publishing
ISBN: 142890624X
Category :
Languages : en
Pages : 154

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Book Description


Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters

Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters PDF Author: United States. Environmental Protection Agency
Publisher:
ISBN:
Category : Coastal zone management
Languages : en
Pages : 848

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Book Description