Download or read book Optimizing the Operation of a Multiple Reservoir System in the Eastern Nile Basin Considering Water and Sediment Fluxes written by Reem Fikri Mohamed Osman Digna and published by CRC Press. This book was released on 2021-02-25 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eastern Nile riparian countries Egypt, Ethiopia and Sudan are currently developing several reservoir projects to contribute to the needs for energy and food production in the region. The Nile Basin, particularly the Eastern Nile Sub-basin, is considered one of a few international river systems with potential conflicts between riparian countries. In the absence of formal mechanisms for collaboration, the transboundary nature of this basin makes sound water resources development challenging. The large seasonal and inter-annual variability of the river flow exacerbates those challenges. A further complication is the high sediment load in the Eastern Nile rivers during the high flow season. This study contributes to fill relevant knowledge gaps through a better understanding of the methods needed for a complex system of multipurpose reservoirs, considering both water quantity and sediment load. The study quantifies the impacts of water resources development in the Eastern Nile basin and identifies system management options at both regional and country level. Developing a collaborative and unified perspective of the countries towards new projects can be beneficial for all. New operation rules are proposed for improving operation of the current system when new infrastructures are developed and operated either unilaterally or, ideally, cooperatively.
Download or read book The Operation of Multiple Reservoir Systems written by Zdzisław Kaczmarek and published by . This book was released on 1982 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optimal Operation of a Multiple Purpose Reservoir written by Bolaji Fatai Sule and published by . This book was released on 1984 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decision Support Systems for Large Dam Planning and Operation in Africa written by Matthew P. McCartney and published by IWMI. This book was released on 2007-01-01 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supported by many International agencies.
Download or read book A review of hydrology sediment and water resource use in the Blue Nile Basin written by Seleshi Bekele Awulachew and published by IWMI. This book was released on 2009-02-05 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This working paper has been prepared as one of the outputs of the ‘Improved water and land management in the Ethiopian Highlands and its impact on downstream stakeholders dependent on the Blue Nile’ project, supported by the CGIAR Challenge Program on Water and Food (CPWF). It provides a comprehensive literature review; identifies types, sources and provides geo-referencing of data in the basin; compiles information of hydrology, sediment, and water resources and its uses. It also provides a review of applicable models for watershed and water allocation simulation, research methods, past studies and published material related to the Blue Nile. Extensive reference material and previous studies are compiled.
Download or read book Water Scarcity and Regional Security in the Nile Basin written by Rami Okascha and published by GRIN Verlag. This book was released on 2013-09-18 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bachelor Thesis from the year 2012 in the subject Politics - Region: Near East, Near Orient, grade: 14,5 p., University of Marburg, language: English, abstract: Since South Sudan's secession in 2011 the Nile River is shared by eleven countries (Egypt, Sudan, South Sudan, Ethiopia, Eritrea, Tanzania, Uganda, Burundi, Rwanda, D.R. Congo, and Kenya) and is home to more than 160 million people. Five of these countries are among the poorest in the world, with low levels of socio-economic development or - in other words - with tremendously high potentials and motivation to socio-economically develop. Today, exploitation of the Nile has reached its limits with ever greater populations and industries depending on its waters. History has created political power structures which represent the exact opposite of the hydrological realites. Although the river receives no contributions from Egyptian territories, the country is the most excessive consumer of Nile waters and dependent on it for about 95% of its freshwater resources. At the same time, precipitation in the Ethiopian highlands delivers some 85% of the Nile's flow measured at Aswan. But the prevailing river regime in combination with a history of political instability has so far prevented Ethiopia and other upstream countries from constructing major schemes to facilitate economic development or even flood protection for its population. Will increasing resource competition lead the states of the Nile Basin to full-scale inter-riparian conflict? Egypt with its very limited availabilty of arable land and already over-exploited and contested water resources must consider to at least partially abandon its pursuit of food self-sufficiency and examine alternative ways of securing its population's needs. Given growing pressures on the Nile's resources, the Basin states' current order will have to fundamentally shift from the current lower-basin domination to a more integrative regional system that appreciates both the upperriparians' contributions and development needs as well as the lower-riparians' dependence upon their cooperation. Considering the most recent trends in scientific literature on transboundary water resources, this transformation is expected to be accomplished through cooperative action rather than resisted against through inter-riparian conflict. This paper argues that Egypt will, despite the repeated threats uttered against underdeveloped upstream states' claims for more equal shares, lose its hitherto dominant position and engage in cooperative efforts exceeding current frameworks like that of the World Bank's NBI.
Download or read book The Nile Basin water resources overview of key research questions pertinent to the Nile Basin initiative written by Yasir Mohamed and published by IWMI. This book was released on 2008-06-24 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Nile Basin Initiative (NBI) is a remarkable achievement towards the cooperative management of the common Nile water resources. Based on a Shared Vision Program and a Subsidiary Action Program, the NBI has numerous ongoing projects on the ground. Research on the Nile water resources has been recognized to be crucial for successful implementation of the NBI projects. Therefore, IWMI and other research centers have worked together with the NBI to identify knowledge gaps pertinent to the Nile water resources. This report presents prioritized research questions, pertinent ongoing research projects and the implementing institutions; and available databases on the Nile.
Download or read book Management of Complex Multi reservoir Water Distribution Systems using Advanced Control Theoretic Tools and Techniques written by Wojciech Z. Chmielowski and published by Springer Science & Business Media. This book was released on 2013-06-28 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study discusses issues of optimal water management in a complex distribution system. The main elements of the water-management system under consideration are retention reservoirs, among which water transfers are possible, and a network of connections between these reservoirs and water treatment plants (WTPs). System operation optimisation involves determining the proper water transport routes and their flow volumes from the retention reservoirs to the WTPs, and the volumes of possible transfers among the reservoirs, taking into account transport-related delays for inflows, outflows and water transfers in the system. Total system operation costs defined by an assumed quality coefficient should be minimal. An analytical solution of the optimisation task so formulated has been obtained as a result of using Pontryagin’s maximum principle with reference to the quality coefficient assumed. Stable start and end conditions in reservoir state trajectories have been assumed. The researchers have taken into account cases of steady and transient optimisation duration. The solutions obtained have enabled the creation of computer models simulating system operation. In future, an analysis of the results obtained may affect decisions supporting the control of currently existing water-management systems.
Download or read book Institutional settings and livelihood strategies in the Blue Nile Basin implications for upstream downstream linkages written by Haileslassie, A. and published by IWMI. This book was released on 2009-02-05 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through rapid assessment of existing literature and review of policy and other official documents, the report synthesizes the existing knowledge and gaps on policies and institutions and identifies key research issues that need in-depth study. The report provides an overview of the range of key livelihoods and production systems in the Blue Nile Basin (BNB) and highlights their relative dependence on, and vulnerability to, water resources and water-related ecosystem services. It also makes an inventory of current water and land related policies and institutions in the BNB, their organizational arrangements, dynamics and linkages and key policy premises. It highlights the major problems in institutional arrangements and policy gaps and makes suggestions for an in-depth Policy and Institutional Studies to be done as part of the Upstream-Downstream Research project.
Download or read book The Grand Ethiopian Renaissance Dam and the Nile Basin written by Zeray Yihdego and published by Routledge. This book was released on 2017-10-31 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Grand Ethiopian Renaissance Dam (GERD) will not only be Africa’s largest dam, but it is also essential for future cooperation and development in the Nile River Basin and East African region. This book, after setting out basin-level legal and policy successes and failures of managing and sharing Nile waters, articulates the opportunities and challenges surrounding the GERD through multiple disciplinary lenses. It sets out its possibilities as a basis for a new era of cooperation, its regional and global implications, the benefits of cooperation and coordination in dam filling, and the need for participatory and transparent decision making. By applying law, political science and hydrology to sharing water resources in general and to large-scale dam building, filling and operating in particular, it offers concrete qualitative and quantitative options that are essential to promote cooperation and coordination in utilising and preserving Nile waters. The book incorporates the economic dimension and draws on recent developments including: the signing of a legally binding contract by Egypt, Ethiopia and Sudan to carry out an impact assessment study; the possibility that the GERD might be partially operational very soon, the completion of transmission lines from GERD to Addis Ababa; and the announcement of Sudan to commence construction of transmission lines from GERD to its main cities. The implications of these are assessed and lessons learned for transboundary water cooperation and conflict management.
Download or read book The Nile River Basin written by Seleshi Bekele Awulachew and published by Routledge. This book was released on 2013-03-05 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Nile provides freshwater not only for domestic and industrial use, but also for irrigated agriculture, hydropower dams and the vast fisheries resource of the lakes of Central Africa. The Nile River Basin covers the whole Nile Basin and is based on the results of three major research projects supported by the Challenge Program on Water and Food (CPWF). It provides unique and up-to-date insights on agriculture, water resources, governance, poverty, productivity, upstream-downstream linkages, innovations, future plans and their implications. Specifically, the book elaborates the history and the major current and future challenges and opportunities of the Nile river basin. It analyzes the basin characteristics using statistical data and modern tools such as remote sensing and geographic information systems. Population distribution, poverty and vulnerability linked to production system and water access are assessed at the international basin scale, and the hydrology of the region is also analysed. This text provides in-depth scientific model adaptation results for hydrology, sediments, benefit sharing, and payment for environmental services based on detailed scientific and experimental work of the Blue Nile Basin. Production systems as they relate to crops, livestock, fisheries and wetlands are analyzed for the whole Blue and White Nile basin including their constraints. Policy, institutional and technological interventions that increase productivity of agriculture and use of water are also assessed. Water demand modeling, scenario analysis, and tradeoffs that inform future plans and opportunities are included to provide a unique, comprehensive coverage of the subject.
Download or read book Management of Complex Multi reservoir Water Distribution Systems using Advanced Control Theoretic Tools and Techniques written by Wojciech Chmielowski and published by Springer. This book was released on 2013-06-29 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study discusses issues of optimal water management in a complex distribution system. The main elements of the water-management system under consideration are retention reservoirs, among which water transfers are possible, and a network of connections between these reservoirs and water treatment plants (WTPs). System operation optimisation involves determining the proper water transport routes and their flow volumes from the retention reservoirs to the WTPs, and the volumes of possible transfers among the reservoirs, taking into account transport-related delays for inflows, outflows and water transfers in the system. Total system operation costs defined by an assumed quality coefficient should be minimal. An analytical solution of the optimisation task so formulated has been obtained as a result of using Pontryagin’s maximum principle with reference to the quality coefficient assumed. Stable start and end conditions in reservoir state trajectories have been assumed. The researchers have taken into account cases of steady and transient optimisation duration. The solutions obtained have enabled the creation of computer models simulating system operation. In future, an analysis of the results obtained may affect decisions supporting the control of currently existing water-management systems.
Download or read book Silting and Desilting of Reservoirs written by Dan G. Batuca and published by CRC Press. This book was released on 2000-01-01 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: The creation of river dams and the storage of water have been a strategy for survival for many centuries. Reservoirs have diverse functions, providing irrigation, water supply, storage of water, flood control, navigation and power generation. The silting of a reservoir is an unavoidable process. Although it cannot be halted, silting can be slowed down and controlled by a variety of soil conservation practices and by modifying agricultural practices in the catchment area. Other methods of reducing silting include the placing of certain engineering structures in the river system and the introduction of adequate strategies of reservoir operation. Silting and Desilting of Reservoirs includes aspects such as hydraulics, sediment transport, silting, sediment distribution, calculation and prediction of silting and solutions to reservoir silting.
Download or read book Making Water Security written by Hermen Smit and published by CRC Press. This book was released on 2020-02-04 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines Nile water security through the morphology of the river: it uses the always changing form of the river as a theoretical and empirical device to map and understand how infrastructures and discourses dynamically interact with the Nile. By bringing a history of two centuries of dam development on the Nile in relation with the drainage of a hill slope in Ethiopia on the one hand and irrigation reform in Sudan on the other, the author shows how the scales, units and ‘populations’ figuring in projects to securitize the river emerge through the rearrangement of its water and sediments. The analysis of ‘Making water security’ is more than yet another story of how modern projects of water security have legitimized often violent dispossessions of Nile land and water. It shows how no water user is confined by the roles assigned by project engineers and planners. As ongoing modern ‘development’ of the river reduces the prospects for new large diversions of water, the targeted subjects of development and modernization make use of newly opened spaces to carve out their own projects. They creatively mobilize old irrigation and drainage infrastructures in ways that escape the universal logic of water security.
Download or read book The Grand Ethiopian Renaissance Dam on the Blue Nile written by Wossenu Abtew and published by Springer. This book was released on 2018-07-26 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about the Grand Ethiopian Renaissance Dam newly being built on the Blue Nile, a transboundary river. Due to rising population and increasing water demand in the Nile basin, major projects raise interest and concern by millions with potential for water conflict. The dam design, reservoir filling policy, operation of the dam, riparian countries response, dam site importance and social impact and economy of the dam are presented in the book.
Download or read book The Impact of Soil Erosion in the Upper Blue Nile on Downstream Reservoir Sedimentation written by Yasir Salih Ahmed Ali and published by CRC Press. This book was released on 2018-09-27 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Population growth in the Blue Nile Basin has led to fast land-use changes from forest to agricultural land, which resulted in speeding up the soil erosion processes producing highly negative impacts on the local soil fertility and agricultural productivity. The eroded sediment is transported downstream by water and sinks in the lower basin where it significantly reduces reservoir storage and irrigation canals capacity. The only effective solution to mitigate the sedimentation problem is to limit the sediment inputs from upstream by locally implementing erosion control practices. However, given the vastness and remoteness of the involved areas, this first requires the knowledge of the most critical zones. The book identifies the sources of the sediment depositing in the Lower Blue Nile Basin and quantifies the amounts involved providing essential information for the planning and implementation of any interventions aiming at reducing soil erosion. The methods used consist of extensive field work covering most of the basin, watershed, hydrodynamic and morphodynamic modelling and, for the first time, the mineralogical analysis of the sediment at the sources and sinks. The method is successful in indentifying the areas providing most of the transported sediment, where it is recommended to start with erosion control practices.
Download or read book Impact of Improved Operation and Maintenance on Cohesive Sediment Transport in Gezira Scheme Sudan written by ISHRAGA S. OSMAN and published by CRC Press. This book was released on 2018-09-27 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Irrigated agriculture remains to be the main option to boost the economy in Sudan in general. It can rise the living standard of the majority of the population; particularly those who are attached to farming and livestock. With the expected increase in population in the next decades, water management of large irrigation systems will become a key issue to increase productivity and assure future food security. Sediment transport in irrigation canals makes water management very complicated. This study focuses on water management in Gezira Scheme, Sudan. This scheme is irrigated from the Blue Nile River, which is characterized by a high sediment concentration. The aim of the study was to reduce the impact of fine sediment deposition in irrigation canals by improving the operation and maintenance procedures. A numerical model has been developed to simulate the cohesive sediment transport in irrigation canals. This model is a useful tool for the operators and decision makers to assess different options of operation in terms of sediment transport. This study found that sediment deposition in the canals can be minimized if the operation based on crop water requirement is adjusted at a certain period during the flood season.
