Download or read book Decision Support System for Optimal Design and Operation of Ponds for Watershed Runoff Management written by Abdulwahab Mujahed Hasan Al-Ansi and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With climate change and rapid land development the extremes in occurrence of floods and droughts are inevitable. More frequent floods are occurring with bigger losses and damage to properties and lives. On the other hand, agricultural droughts are also more frequent causing shortages of water for crop irrigation during dry seasons. Severe floods and droughts in any watershed or river basin under rapid development make water resources management a very important criteria for environmental and agriculture sustainability.The Upper Bernam River Basin (UBRB) Malaysia is the main source of irrigation water supply for a 20,000 ha rice granary. There is no dam reservoir for irrigation, but irrigation is by river diversion of the river irrigation system. Landuse has rapidly changed from 1984 until today. This result in shortage of irrigation water supply during low flow months whereas several floods incidents were observed lately. Therefore, it is very important to control floods during high flow months and also maintain high base flows so that enough water is available for irrigation during the low flow months. Understanding how the landuse change influences the river basin hydrology may enable planners to formulate policies to minimize the undesirable effects of land development. The objectives of this study were to assess the impacts of landuse changes on the watershed runoff in a humid tropical river basin and to develop a decision support system based on continuous hydrological simulation integrated with optimization algorithm to determine the optimal ponds locations, sizes and operations for floods control during high flow months and maintain river flow during low flow months. The need for spatial and temporal land-cover change detection over a larger scale makes satellite imagery the most cost effective, efficient and reliable source of data. The applicability of GIS makes it an important and efficient tool for spatial hydrologic modeling. In this study the integration of GIS and Soil and Water Assessment Tool (ARCSWAT) were used to evaluate the impacts of current and planed of landuse changes on stream flow quantity in the study area.The study was conducted using 27 years of records (1981-2007). Calibration and validation of the model were performed initially. Model performance was checked using both graphical and statistical indicators. During calibration, the annual, monthly and daily flow results were 0.82, 0.65, 0.68, 0.81, 0.62 and 0.58 for R2 and E, respectively and 1.00, 0.93, 0.89, 0.99, 0.92 and 0.88 respectively during validation. As for forecasting validation, R2 and E were 0.98, 0.86, 0.55, 0.91, 0.84 and 0.53 respectively. In general, the model showed good performance in simulating flow as well as forecasting. Five scenarios were performed to identify the individual effect of mixed landuse change on stream flow. The scenario results demonstrated that landuse changes were responsible for an increase in the annual flow depth of 8% to 39%, and 16% to 59% during high flow months. Landuse changes also caused a decrease of 3% to 32% during low flow months. Flow forecasting for the year 2020 using 30 forecasting cycles was found to be the optimal for the study area. The results showed that there was a decrease by 50% below the monthly irrigation water demand during low flow months, which emphasized the need to include structural best management practices (BMPs) such as ponds in the study area for future land development plan to mitigate the future landuse changes on flow quantity. A watershed runoff management decision support system model (WARM-DSS) was developed to maintain the future development rate with concern for mitigation of its impact to the environment and water quantity. The model showed generally good performance in simulating the runoff with reasonable statistical indicators (3.75, 4.46, 0.034, 0.99 and 0.98 for MAE, RMSE, U, R2 and E, respectively). For 2020 expected landuse changes in the study area, the model was applied with flood and drought return periods of 2, 5, 10, 20, 50 and 100 years. The results were twelve ponds with total maximum area of 2900 ha, maximum storage capacity of 1.45 x 108 m3 and specific daily operation were found to be the optimal to achieve the targeted flow during both high flow months and low flow months. The reduction in floods were 20%, 59%, 79%, 140%, 206% and 304% for the return periods of 2, 5, 10, 20, 50 and 100, respectively. While the increases in flow for the drought return periods were 19%, 40%, 47%, 43%, 37% and 30%.The developed model in this study has high potentiality to be applied for any future development plans to predict the hydrological impacts, to mitigate the risk of floods, and to avoid the shortage of irrigation water. The model also works as a framework for science-based decision making tool when formulating landuse policies. It can be a practical tool for hydrologists, engineers and town and country planners. The irrigation engineers can use this tool during the planning for irrigation water supply and determination of future ponds location and size to increase the availability of the irrigation water and temporary storage of flood water.
Download or read book DayWater written by Daniel R. Thevenot and published by IWA Publishing. This book was released on 2008-03-15 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The European DayWater project has developed a prototype of an Adaptive Decision Support System (ADSS) related to urban stormwater pollution source control. The DayWater ADSS greatly facilitates decision-making for stormwater source control, which is currently impeded by the large number of stakeholders involved and by the necessary multidisciplinary knowledge. This book presents the results of this project, providing new insights into both technical and management issues. The main objectives of its technical chapters are pollution source control modelling, risk and impact assessment, and evaluation and comparison of best management practices. It also covers management aspects, such as the analysis of the decision-making processes in stormwater source control, at a European scale, and stormwater management strategies in general. The combination of scientific-technical and socio-managerial knowledge, with the strong cooperation of numerous end-users, reflects the innovative character of this book which includes actual applications of the ADSS prototype in significant case studies. DayWater: an Adaptive Decision Support System for Urban Stormwater Management contains 26 chapters collectively prepared by DayWater scientific partners and end-users associated with this European Research and Development project. It includes: A general presentation of the DayWater Adaptive Decision Support System (ADSS) structure and operation modes A detailed description of the major components of this ADSS prototype The assessment of its components in significant case studies in France, Germany and Sweden The proceedings of the International Conference on Decision Support Systems for Integrated Urban Water Management, held in Paris on 3-4 November 2005. The book presents the ADSS prototype including a combination of freely accessible on-line databases, guidance documents, “road maps” and modelling or multi-criteria analysis tools. As demonstrated in several significant case studies the challenge for stormwater managers is to make the benefits of urban stormwater management visible to society, resulting in active co-operation of a diversity of stakeholders. Only then, will sustainable management succeed. DayWater: an Adaptive Decision Support System for Urban Stormwater Management advances this cause of sustainable urban management through Urban stormwater management, and makes achievable (by means of risk and vulnerability tools which are included) the goal of integrated urban water management (IUWM).
Download or read book A Decision Support System for Integrated Watershed Management written by Gamal Ibrahim Y. Allam and published by . This book was released on 1994 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Research Initiative Competitive Grants Program written by and published by . This book was released on 1995 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASCE Combined Index written by American Society of Civil Engineers and published by . This book was released on 1998 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indexes materials appearing in the Society's Journals, Transactions, Manuals and reports, Special publications, and Civil engineering.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Best Management Practices BMPs in Urban Watersheds written by Richard Field and published by DEStech Publications, Inc. This book was released on 2006 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Presents and compares all major stormwater/runoff control strategies ; New data on pollutant removal efficiencies, design, costs, environmental impacts and more ; Where and why to use the best techniques for limiting/monitoring diffuse pollution ; Provides the tools to meet regulations and improve water quality in urban/suburban watersheds"--From publisher's description.
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1989 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Code written by Texas and published by . This book was released on 1972 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wastewater Stabilization Lagoon written by J. S. Russell and published by . This book was released on 1980 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stormwater Management Alternatives written by Joachim Toby Tourbier and published by . This book was released on 1980 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of the New York City Watershed Protection Program written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-12-04 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: New York City's municipal water supply system provides about 1 billion gallons of drinking water a day to over 8.5 million people in New York City and about 1 million people living in nearby Westchester, Putnam, Ulster, and Orange counties. The combined water supply system includes 19 reservoirs and three controlled lakes with a total storage capacity of approximately 580 billion gallons. The city's Watershed Protection Program is intended to maintain and enhance the high quality of these surface water sources. Review of the New York City Watershed Protection Program assesses the efficacy and future of New York City's watershed management activities. The report identifies program areas that may require future change or action, including continued efforts to address turbidity and responding to changes in reservoir water quality as a result of climate change.
Download or read book Water Resource Systems Planning and Management written by Daniel P. Loucks and published by Springer. This book was released on 2017-03-02 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY-NC 4.0 license. This revised, updated textbook presents a systems approach to the planning, management, and operation of water resources infrastructure in the environment. Previously published in 2005 by UNESCO and Deltares (Delft Hydraulics at the time), this new edition, written again with contributions from Jery R. Stedinger, Jozef P. M. Dijkman, and Monique T. Villars, is aimed equally at students and professionals. It introduces readers to the concept of viewing issues involving water resources as a system of multiple interacting components and scales. It offers guidelines for initiating and carrying out water resource system planning and management projects. It introduces alternative optimization, simulation, and statistical methods useful for project identification, design, siting, operation and evaluation and for studying post-planning issues. The authors cover both basin-wide and urban water issues and present ways of identifying and evaluating alternatives for addressing multiple-purpose and multi-objective water quantity and quality management challenges. Reinforced with cases studies, exercises, and media supplements throughout, the text is ideal for upper-level undergraduate and graduate courses in water resource planning and management as well as for practicing planners and engineers in the field.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1999 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Techniques for Modelling the Management of Stormwater Quality Impacts written by William James and published by CRC Press. This book was released on 1992-12-21 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: New Techniques for Modelling the Management of Stormwater Quality Impacts is a unique volume devoted to discussing new developments in modeling, best management practices (BMPs), information management, user interfacing, and instrumentation for reducing the impacts of urbanization on aquatic ecosystems. The book is divided into three sections: ecosystems and environmental modeling contexts; best management practices, including real-time control; and applications of geographical information systems (GIS). Specific topics addressed include the need to move from a regulatory basis for system management to a process-based management system, the use of remote sensing to divide a catchment into six different hydrologic response classes to compute floods, instrumentation, data acquisition, real-time control, aspects of stormwater detention ponds, and methods for using GIS. Detailed indexes, lists of acronyms, programs and models, and a full glossary are provided at the end of the book. New Techniques for Modelling the Management of Stormwater Quality Impacts will interest professional engineers in municipal and environmental engineering, consultants, researchers in civil engineering, hydrological engineers, hydraulics engineers, environmental policy makers, and students.
Download or read book EPA 625 1 written by and published by . This book was released on 1976-04 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Global Solutions for Urban Drainage written by American Society of Civil Engineers and published by . This book was released on 2002 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
