Flow and Sediment Transport Modeling for the Chesapeake Bay

Flow and Sediment Transport Modeling for the Chesapeake Bay PDF Author: Nitin Bedi
Publisher:
ISBN:
Category :
Languages : en
Pages : 136

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Flow and Sediment Transport Modeling for the Chesapeake Bay

Flow and Sediment Transport Modeling for the Chesapeake Bay PDF Author: Nitin Bedi
Publisher:
ISBN:
Category :
Languages : en
Pages : 136

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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.

A Three-dimensional Kinematic Model of Suspended Sediment Transport in the Upper Chesapeake Bay

A Three-dimensional Kinematic Model of Suspended Sediment Transport in the Upper Chesapeake Bay PDF Author: John R. Hunter
Publisher:
ISBN:
Category : Estuarine sediments
Languages : en
Pages : 72

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Work Plan for Three-dimensional Time-varying, Hydrodynamic and Water Quality Model of Chesapeake Bay

Work Plan for Three-dimensional Time-varying, Hydrodynamic and Water Quality Model of Chesapeake Bay PDF Author:
Publisher:
ISBN:
Category : Chesapeake Bay (Md. and Va.)
Languages : en
Pages : 62

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Book Description
This report describes the Work Plan for development of a three-dimensional, time-varying, hydrodynamic and water quality model for Chesapeake Bay. The Chesapeake Bay Program is a cooperative effort between state and Federal agencies to restore the health and productivity of America's largest estuary. The report describes the technical work tasks, schedules, and study management. The developed hydrodynamic and water quality model will be an important component in the development of a strategy to address specific management issues. (fr).

Computational River Dynamics

Computational River Dynamics PDF Author: Weiming Wu
Publisher: CRC Press
ISBN: 0203938488
Category : Science
Languages : en
Pages : 509

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Book Description
Comprehensive text on the fundamentals of modeling flow and sediment transport in rivers treating both physical principles and numerical methods for various degrees of complexity. Includes 1-D, 2-D (both depth- and width-averaged) and 3-D models, as well as the integration and coupling of these models. Contains a broad selection

NBS Special Publication

NBS Special Publication PDF Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 1562

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Computer Modeling of Free-Surface and Pressurized Flows

Computer Modeling of Free-Surface and Pressurized Flows PDF Author: M. Hanif Chaudhry
Publisher: Springer Science & Business Media
ISBN: 9401109648
Category : Science
Languages : en
Pages : 737

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Book Description
Computers are widely used for the analysis, design, and operation of water resource projects. This gives accurate results, allowing the analysis of complex systems which may not have been possible otherwise, and the investigation and comparison of several different alternatives in a short time, thereby reducing the project costs, optimizing design, and efficient utilization of resources. This volume compiles an edited version of the lecture notes specially prepared by 14 well-known European and North American researchers. Part I deals with free-surface flows. Governing equations are derived and their solution by the finite-difference, finite-element, and boundary-integral methods are discussed. Then, turbulence models, three-dimensional models, dam-break flow models, sediment transport models, and flood routing models are presented. Part II is related to the modeling of steady and transient pressurized flows. Governing equations for both single and two-component flows are derived and numerical methods for their solution are presented. The modeling of water quality in pipe networks, of cooling water systems, and slow and rapid transients is then discussed.

Sources, Fate, and Transport of Nitrogen and Phosphorus in the Chesapeake Bay Watershed

Sources, Fate, and Transport of Nitrogen and Phosphorus in the Chesapeake Bay Watershed PDF Author: Scott W. Ator
Publisher: Geological Survey (USGS)
ISBN: 9781411332621
Category : Chesapeake Bay Watershed
Languages : en
Pages : 27

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Book Description
Spatially Referenced Regression on Watershed Attributes (SPARROW) was used to provide empirical estimates of the sources, fate, and transport of total nitrogen (TN) and total phosphorus (TP) in the Chesapeake Bay watershed, and the mean annual TN and TP flux to the bay and in each of 80,579 nontidal tributary stream reaches. Restoration efforts in recent decades have been insufficient to meet established standards for water quality and ecological conditions in Chesapeake Bay. The bay watershed includes 166,000 square kilometers of mixed land uses, multiple nutrient sources, and variable hydrogeologic, soil, and weather conditions, and bay restoration is complicated by the multitude of nutrient sources and complex interacting factors affecting the occurrence, fate, and transport of nitrogen and phosphorus from source areas to streams and the estuary. Effective and efficient nutrient management at the regional scale in support of Chesapeake Bay restoration requires a comprehensive understanding of the sources, fate, and transport of nitrogen and phosphorus in the watershed, which is only available through regional models. The current models, Chesapeake Bay nutrient SPARROW models, version 4 (CBTN_v4 and CBTP_v4), were constructed at a finer spatial resolution than previous SPARROW models for the Chesapeake Bay watershed (versions 1, 2, and 3), and include an updated timeframe and modified sources and other explantory terms.

Achieving Nutrient and Sediment Reduction Goals in the Chesapeake Bay

Achieving Nutrient and Sediment Reduction Goals in the Chesapeake Bay PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309210828
Category : Political Science
Languages : en
Pages : 258

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Book Description
The Chesapeake Bay is North America's largest and most biologically diverse estuary, as well as an important commercial and recreational resource. However, excessive amounts of nitrogen, phosphorus, and sediment from human activities and land development have disrupted the ecosystem, causing harmful algae blooms, degraded habitats, and diminished populations of many species of fish and shellfish. In 1983, the Chesapeake Bay Program (CBP) was established, based on a cooperative partnership among the U.S. Environmental Protection Agency (EPA), the state of Maryland, and the commonwealths of Pennsylvania and Virginia, and the District of Columbia, to address the extent, complexity, and sources of pollutants entering the Bay. In 2008, the CBP launched a series of initiatives to increase the transparency of the program and heighten its accountability and in 2009 an executive order injected new energy into the restoration. In addition, as part of the effect to improve the pace of progress and increase accountability in the Bay restoration, a two-year milestone strategy was introduced aimed at reducing overall pollution in the Bay by focusing on incremental, short-term commitments from each of the Bay jurisdictions. The National Research Council (NRC) established the Committee on the Evaluation of Chesapeake Bay Program Implementation for Nutrient Reduction in Improve Water Quality in 2009 in response to a request from the EPA. The committee was charged to assess the framework used by the states and the CBP for tracking nutrient and sediment control practices that are implemented in the Chesapeake Bay watershed and to evaluate the two-year milestone strategy. The committee was also to assess existing adaptive management strategies and to recommend improvements that could help CBP to meet its nutrient and sediment reduction goals. The committee did not attempt to identify every possible strategy that could be implemented but instead focused on approaches that are not being implemented to their full potential or that may have substantial, unrealized potential in the Bay watershed. Because many of these strategies have policy or societal implications that could not be fully evaluated by the committee, the strategies are not prioritized but are offered to encourage further consideration and exploration among the CBP partners and stakeholders.

Hydraulic Research in the United States and Canada, 1974

Hydraulic Research in the United States and Canada, 1974 PDF Author: Pauline H. Gurewitz
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 364

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