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Author : Joseph M. Culp,National Hydrology Research Institute (Canada),Patricia A. Chambers,Northern River Basins Study (Canada). Nutrient Impacts and Dissolved Oxygen Component Group
Publisher : Saskatoon, Sask. : National Hydrology Research Institute
Page : 90 pages
File Size : 50,8 Mb
Release : 1994
Category : Water
ISBN : 066015515X
Author : Joseph M. Culp,Patricia A. Chambers,Northern River Basins Study (Canada)
Publisher : Unknown
Page : 174 pages
File Size : 49,5 Mb
Release : 1994
Category : Computer simulation
ISBN : MSU:31293010114274
This report summarizes discussions and conclusions from a workshop on water quality modelling approaches for the Peace and Athabasca Rivers. Workshop objectives included identification of research needs in terms of water quality models, discussion and assessment of existing water quality models in terms of short- and long-term needs for basin management, review and assessment of model structure, examination of rate coefficients and the limitations of available data bases, and identification of issues and areas requiring further research. Sections of the report cover the hydrology of the Peace-Athabasca rivers, water quality monitoring programs in those rivers, water quality modelling approaches (including stochastic models, the WASP4 program, the Dynamic Stream Simulation and Assessment Model, pattern recognition techniques, and alternative approaches), and water quality modelling recommendations for the Northern River Basins Study. Includes glossary.
Author : Anonim
Publisher : Unknown
Page : 178 pages
File Size : 55,9 Mb
Release : 1994
Category : Athabasca River Watershed (Alta.)
ISBN : MINN:31951D01233169W
Author : Mark S. J. Ouellett,Northern River Basins Study (Canada)
Publisher : Unknown
Page : 74 pages
File Size : 49,7 Mb
Release : 1997
Category : Aquatic ecology
ISBN : MINN:31951D01475921G
Lists Northern River Basins Study technical reports by issue number, subject, and geographic area studied. Subject areas used to classify the reports are: hydrology/hydraulics, nutrients/dissolved oxygen, contaminants, food chain, drinking water, other uses, traditional knowledge, and synthesis and modelling. Ten geographic divisions are used: three each for the Athabasca and Peace Rivers, and one each of the Wapiti/Smoky rivers, Peace-Athabasca Delta, Lake Athabasca, and Rivière des Rochers/Slave River.
Author : Patricia A. Chambers,Thomas A. Mill,Northern River Basins Study (Canada)
Publisher : Unknown
Page : 112 pages
File Size : 49,9 Mb
Release : 1996
Category : Water
ISBN : MINN:31951D016292060
The NTBS was designed to address the ecological concerns about pulp mill expansion, and to increase scientific knowledge about environmental conditions [ecology, ecosystem sustainability, water pollution and control, habitat, effect on fish and fishing, etc.] in the major river systems of the north. The study's objectives were to gather and interpret sound scientific information about the basins, develop appropriate recommendations for basin management, and communicate effectively with the public. The government response report confirms the governments' commitment to ecosystem sustainability and to pollution control in northern rivers. First Nations and Metis aboriginal [native] peoples contributed significantly to the NRBS.
Author : Patricia A. Chambers,Northern River Basins Study (Canada)
Publisher : Unknown
Page : 220 pages
File Size : 48,7 Mb
Release : 1996
Category : Water
ISBN : MINN:31951D00913593Q
The aim of this study was to examine the existing model approach and to make recommendations for improved modelling of under-ice dissolved oxygen (DO) concentrations in the Athabasca River. Previous modelling efforts have involved using the DO simulation model DOSTOC, but discrepancies between observed and predicted DO concentrations for 1992 and 1993 highlighted the needs for a review and assessment of the modelling approaches used. This report reviews the structure of the DOSTOC model and input data used for modelling, then describes a stochastic run of the model using the best available values for input data and process rates, including revised rates and ratios for converting five-day biological oxygen demand (BOD) values to ultimate BOD values, measured values for sediment oxygen demand and sedimentation, and a temperature correction for pulp mill BOD decay rates. Simulation results indicate whether the model could predict DO for 1990-94 winters. Regression equations were also developed relating DO concentration to river distance.
Author : Mervin D. Palmer
Publisher : World Bank Publications
Page : 188 pages
File Size : 54,8 Mb
Release : 2001-01-01
Category : Technology & Engineering
ISBN : 0821348639
Annotation This book provides a broad based understanding of the water quality prediction process and evaluates the merits and cost effectiveness in using water quality models under field conditions.
Author : Golder Associates,Northern River Basins Study (Canada)
Publisher : The Study
Page : 172 pages
File Size : 47,9 Mb
Release : 1996
Category : Athabasca River (Alta.)
ISBN : MINN:31951D01475902K
Describes and presents simulation results using a revised model simulating the fate of contaminants in the Athabasca River. The revised fate model allows predictive sediment transport simulation within the WASP4 model framework, predicts resuspension from hydraulic information supplied by WASP4 and from user-supplied sediment characteristics, and can be applied to different flow conditions without having to re-describe sediment transport rates. Several simulations were run using input files from the original model calibration. Program listings of subroutines are included.
Author : Fred F Hattermann,Zbigniew W. Kundzewicz
Publisher : IWA Publishing
Page : 289 pages
File Size : 44,6 Mb
Release : 2009-11-01
Category : Science
ISBN : 9781843392736
Special Offer: Water Framework Directive Series Set. Visit www.iwapublishing.com to buy all four titles including Volume 3 and save £100! Water resources planning and management and the development of appropriate policies requires methodologies and tools that are able to support systematic, integrative and multidisciplinary assessments at various scales. It also requires the quantification of various uncertainties in both data and models, and the incorporation of stakeholders participation and institutional mechanisms into the various tools and risk assessment methodologies, to help decision makers understand and evaluate alternative measures and decisions. This requirement has been explicitly recognised in the context of the European Union Water Framework Directive (WFD). This book is one of the concrete outcomes of the Harmoni-CA concerted action (supported by the European Commission). It provides a framework for model-supported participatory planning of measures at various river basin scales and practical guidance to water managers and other interested stakeholders on the model-supported implementation of the WFD. The objective of the book is to offer guidance to water managers on the model-supported implementation of the Water Framework Directive at the level of a river basin district and at other levels (such as sub-basins, national, or international scale in the case of international river basins). It should help water managers to better understand how models may be used for planning purposes, while special attention is given to the problem of predicting an uncertain future, one very likely to differ from the present. Six case studies from different parts of Europe are provided to illustrate the practical applicability of the planning framework in the WFD implementation. They are very important for illustrating how concepts from earlier parts of the document are applied to real-world situations. The case studies cover several aspects of mesoscale river basin management, water quantity and quality issues, and the role of modelling, with two case studies located in pilot river basins. This text is intended for use by water managers and hydrologists engaged in the implementation of the Water Framework Directive. The other three volumes in the Water Framework Directive Series are: Modelling Aspects of Water Framework Directive Implementation - Volume 1 edited by Prof. Peter A. Vanrolleghem Integrated Assessment for WFD implementation: Data, economic and human dimension - Volume 2 edited by Peter A. Vanrolleghem Decision support for WFD implementation - Volume 3 edited by Peter A. Vanrolleghem
Author : Sarah Riecken,BC Environment. Water Quality Branch
Publisher : The Branch
Page : 124 pages
File Size : 42,7 Mb
Release : 1995-01-01
Category : Water quality
ISBN : 0772623589
Author : Roger A. Falconer
Publisher : Routledge
Page : 152 pages
File Size : 41,8 Mb
Release : 2020-01-29
Category : Science
ISBN : 9780429779138
Published in 1992, this book concentrates on recent developments, applications and aspects relating to numerical hydraulic models for predicting flow and water quality parameters in coastal, estuarine and river waters and river systems. The various chapters cover a range of different types of models and discuss the role of such numerical models for environmental impact assessment studies. The book is based on papers presented by leading experts in the field at a symposium held on 13 November 1991, organized by the Tyne and Humber Branch of the Institution of Water and Environmental Management. It covers the latest developments in modelling techniques and approaches and also the concepts of water quality modelling as required and seen from the viewpoints of regulatory agencies such as the NRA, consulting engineers and specialist modelling laboratories such as HR Wallingford and WRc. As well as an up-to-date review, it provides an understanding of the problems relating to water quality modelling, and the scope and requirements for using water quality models in the water industry. Readership includes practising engineers and scientists in the water industry, including consulting engineers, water companies and the NRA and other government departments, university and polytechnic libraries, staff and students and all other members of the water engineering profession.
Author : A. James
Publisher : John Wiley & Sons
Page : 336 pages
File Size : 42,6 Mb
Release : 1993-03-02
Category : Science
ISBN : UOM:39015029446500
An Introduction to Water Quality Modelling Second Edition Edited by A. James Department of Civil Engineering, University of Newcastle upon Tyne, UK This book presents a simple introduction (for those not familiar with modelling, computing or numerical methods) to the use of modelling techniques and their applications in the management of water quality. Eight years have passed since the first edition of the book was published and there has been a tremendous increase in the use of mathematical models in environmental engineering, especially the control of pollution in rivers and estuaries. Modelling has also addressed a much wider range of pollutants and there has been an increase in the range of conceptual approaches to the formulation of models. The text of this second edition has therefore been modified to reflect these changes. The chapters dealing with techniques have been expanded to cover a greater range of kinetics and introduce a background of understanding for statistical techniques and time series analysis. Similarly, the chapters dealing with the application of models to rivers, estuaries, lakes, groundwater and the marine environment have been expanded and updated. The overall aims of the book, however, remain the same, making it an ideal introductory text for people wishing to learn about water quality modelling.
Author : Patricia A. Chambers,A. Pietroniro,G.J. Scrimgeour,M. Ferguson
Publisher : Unknown
Page : 0 pages
File Size : 52,6 Mb
Release : 1996
Category : Drinking water
ISBN : OCLC:1428885859
Author : John G Lyon,Lynn Lyon
Publisher : CRC Press
Page : 277 pages
File Size : 51,7 Mb
Release : 2022-12-21
Category : Technology & Engineering
ISBN : 9781000798906
1. Captures advanced technologies and applications for assimilation and implementation and addresses a wide spectrum of water issues. 2. Provides real world applications and case studies of advanced spectral and spatial sensors combined with geospatially driven water process modelling. 3. Details applications of the latest remote sensor systems including GRACE, SMAP, AVIRIS, Sentential, MODIS, Landsat 8, RapidEye, AirSWOT, and pays special attention to multidisciplinary cases studies. 4. It is global in coverage with applications demonstrated by more than 170 experts from around the world. 5. Edited by extremely qualified authors with lifelong expertise in water sciences and with an extensive record in books and journal publications.
Author : National Research Council,Division on Earth and Life Studies,Water Science and Technology Board,Committee on the Mississippi River and the Clean Water Act: Scientific, Modeling, and Technical Aspects of Nutrient Pollutant Load Allocation and Implementation
Publisher : National Academies Press
Page : 91 pages
File Size : 44,6 Mb
Release : 2009-07-13
Category : Nature
ISBN : 9780309141789
A large area of coastal waters in the northern Gulf of Mexico experiences seasonal conditions of low levels of dissolved oxygen, a condition known as hypoxia. Excess discharge of nutrients into the Gulf of Mexico from the Mississippi and Atchafalaya rivers causes nutrient overenrichment in the gulf's coastal waters and stimulates the growth of large algae blooms. When these algae die, the process of decomposition depletes dissolved oxygen from the water column and creates hypoxic conditions. In considering how to implement provisions of the Clean Water Act to strengthen nutrient reduction objectives across the Mississippi River basin, the U.S. Environmental Protection Agency (EPA) requested advice from the National Research Council. This book represents the results of the committee's investigations and deliberations, and recommends that the EPA and U.S. Department of Agriculture should jointly establish a Nutrient Control Implementation Initiative to learn more about the effectiveness of actions meant to improve water quality throughout the Mississippi River basin and into the northern Gulf of Mexico. Other recommendations include how to move forward on the larger process of allocating nutrient loading caps-which entails delegating responsibilities for reducing nutrient pollutants such as nitrogen and phosphorus-across the basin.