A Review Of Hydrology Sediment And Water Resource Use In The Blue Nile Basin
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A Review Of Hydrology Sediment And Water Resource Use In The Blue Nile Basin
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Author : Seleshi Bekele Awulachew
language : en
Publisher: IWMI
Release Date : 2009-02-05
A Review Of Hydrology Sediment And Water Resource Use In The Blue Nile Basin written by Seleshi Bekele Awulachew and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-02-05 with Blue Nile River Watershed (Ethiopia and Sudan) categories.
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.
Developing An Impact Based Combined Drought Index For Monitoring Crop Yield Anomalies In The Upper Blue Nile Basin Ethiopia
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Author : Yared Bayissa
language : en
Publisher: CRC Press
Release Date : 2018-10-26
Developing An Impact Based Combined Drought Index For Monitoring Crop Yield Anomalies In The Upper Blue Nile Basin Ethiopia written by Yared Bayissa and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-26 with Science categories.
Having a robust drought monitoring system for Ethiopia is crucial to mitigate the adverse impacts of droughts. Yet, such monitoring system still lacks in Ethiopia, and in the Upper Blue Nile (UBN) basin in particular. Several drought indices exist to monitor drought, however, these indices are unable, individually, to provide concise information on the occurrence of meteorological, agricultural and hydrological droughts. A combined drought index (CDI) using several meteorological, agricultural and hydrological drought indices can indicate the occurrence of all drought types, and can provide information that facilitates the drought management decision-making process. This thesis proposes an impact-based combined drought index (CDI) and a regression prediction model of crop yield anomalies for the UBN basin. The impact-based CDI is defined as a drought index that optimally combines the information embedded in other drought indices for monitoring a certain impact of drought, i.e. crop yield for the UBN. The developed CDI and the regression model have shown to be effective in indicating historic drought events in UBN basin. The impact-based CDI could potentially be used in the future development of drought monitoring in the UBN basin and support decision making in order to mitigate adverse drought impacts.
Downstream Consequences Of Ribb River Damming Lake Tana Basin Ethiopia
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Author : Chalachew Abebe Mulatu
language : en
Publisher: CRC Press
Release Date : 2022-02-09
Downstream Consequences Of Ribb River Damming Lake Tana Basin Ethiopia written by Chalachew Abebe Mulatu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-09 with Science categories.
This study assessed the downstream river system adaptation in response to upstream damming on the Ribb River, Ethiopia, to irrigate 15,000 ha. It combined primary and secondary data, and the application of remote sensing and mathematical modeling. The pre-dam morphodynamic trends of the Ribb River were analyzed for 59 years based on aerial photographs, satellite images, and newly collected field data. Three dam operation scenarios were developed to analyze the long-term hydro-morphological effects of the dam on the downstream river reaches. It also assessed the applicability of physics-based analytical equations (Equilibrium Theory) compared to a 1D numerical model (SOBEK-RE) to determine the least-morphologically impactful dam operation scenario on the river reaches downstream of the dam. Moreover, a HEC-RAS 2D hydrodynamic model was developed to assess the effect of the dam on the flooding extent of the Fogera Plain. This was used to study the potential implications of hydrological alteration on the ecology of the floodplain wetlands, as they are the habitats of important fish and bird species. The results contribute to knowledge on the hydro-morphological and environmental impacts of dams on downstream river systems. The developed methodologies and findings may be used to study future hydro-morphological and ecological changes that may arise due to other dam operations or climate change.
Improved Water And Land Management In The Ethiopian Highlands Its Impact On Downstream Stakeholders Dependent On The Blue Nile Intermediate Results Dissemination Workshop Held At The International Livestock Research Institute Ilri Addis Ababa Ethiopia 5 6 February 2009
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Author : Awulachew, Seleshi Bekele
language : en
Publisher: IWMI
Release Date : 2009-11-24
Improved Water And Land Management In The Ethiopian Highlands Its Impact On Downstream Stakeholders Dependent On The Blue Nile Intermediate Results Dissemination Workshop Held At The International Livestock Research Institute Ilri Addis Ababa Ethiopia 5 6 February 2009 written by Awulachew, Seleshi Bekele and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-24 with categories.
This proceeding provides the papers and discussion results of a two-day workshop that was organized at International Water Management Institute (IWMI) office in Addis Ababa during the period of February 6-8, 2009 in relation to CPWF Project 19 – Improved water and land management in the Ethiopian Highlands and its impact on downstream stakeholders dependent on the Blue Nile. Short title: Upstream Downstream (USDS) in the Nile. The project is being under implementation during the last one and half years in partnership with various institutions that include International Livestock Research Institute, Cornell University, Omdurman Islamic University-UNESCO Chair in Water Resources, Addis Ababa University, Bahir Dar University, Amhara Regional Agricultural Research Institute and Forum for Social Studies. The main aims of the workshop had been: Bring together key stakeholders relevant to the project; Present, debate and validate the intermediate results of the project; Disseminate key results to wider audiences through workshop participating stakeholders; Follow up on the progress of the project and plan remaining tasks of the project. The workshop focus themes were: General characterization of the Blue Nile Basin; Watershed modeling and analysis; Water demand and allocation modeling and simulation; Policy and institutions of the water management in the Blue Nile basin.
Multiple Sources Of Water For Multiple Purposes In Northeast Thailand
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Author : Penning de Vries, F.
language : en
Publisher: IWMI
Release Date : 2011-02-07
Multiple Sources Of Water For Multiple Purposes In Northeast Thailand written by Penning de Vries, F. and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-07 with categories.
Many farms in tropical countries suffer from droughts in the dry season and sometimes even in the rainy season. In order to significantly increase the capacity to store water, the grassroots Farmer Wisdom movement in Northeast Thailand innovated pond construction on homesteads. This Working Paper first documents how pond water is mainly used to irrigate crops and fruit trees, and is also used for livestock or fish, and for domestic uses, even if ample piped water is available. Households were also found to harvest rainwater from roofs; take water from canals and streams; lift water manually from shallow wells and with electric pumps from deep wells; channel run-off from roads to paddy fields; use precipitation as green water on fields; and buy bottled water. Most households combine at least six of these nine water sources. The second part describes scenarios and some outcomes of a new simulation model, BoNam. This model provides guidelines for the optimal size and site of such ponds according to biophysical factors (weather, soil and crops), socioeconomic factors (prices, availability of labor and off-farm income) and household aspirations.
Synthesis Of Iwmi Work In Nepal
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Author : Pant, D.
language : en
Publisher: IWMI
Release Date : 2010-10-20
Synthesis Of Iwmi Work In Nepal written by Pant, D. and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-20 with categories.
The International Water Management Institute (IWMI) has been working in Nepal since 1986 with the objective of undertaking research in water management and to strengthen the research capabilities of concerned government agencies. The research helped to develop appropriate mechanisms for providing support to Farmer-Managed Irrigation Systems (FMIS) and the initiation of participatory irrigation management (PIM). The river basin studies helped policy formulation for integrated planning and management of water resources besides the methodological contribution through the development of appropriate tools for water management studies. It also contributed to enhancing the capabilities of agency officials and local researchers through their involvement in research activities.
Highlights Of Soil And Water Conservation Investments In Four Regions Of Ethiopia
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Author : Adimassu, Zenebe
language : en
Publisher: International Water Management Institute (IWMI)
Release Date : 2018-08-24
Highlights Of Soil And Water Conservation Investments In Four Regions Of Ethiopia written by Adimassu, Zenebe and has been published by International Water Management Institute (IWMI) this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-24 with Technology & Engineering categories.
Wadi Flash Floods
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Author : Tetsuya Sumi
language : en
Publisher: Springer Nature
Release Date : 2021-10-11
Wadi Flash Floods written by Tetsuya Sumi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-11 with Nature categories.
This open access book brings together research studies, developments, and application-related flash flood topics on wadi systems in arid regions. The major merit of this comprehensive book is its focus on research and technical papers as well as case study applications in different regions worldwide that cover many topics and answer several scientific questions. The book chapters comprehensively and significantly highlight different scientific research disciplines related to wadi flash floods, including climatology, hydrological models, new monitoring techniques, remote sensing techniques, field investigations, international collaboration projects, risk assessment and mitigation, sedimentation and sediment transport, and groundwater quality and quantity assessment and management. In this book, the contributing authors (engineers, researchers, and professionals) introduce their recent scientific findings to develop suitable, applicable, and innovative tools for forecasting, mitigation, and water management as well as society development under seven main research themes as follows: Part 1. Wadi Flash Flood Challenges and Strategies Part 2. Hydrometeorology and Climate Changes Part 3. Rainfall–Runoff Modeling and Approaches Part 4. Disaster Risk Reduction and Mitigation Part 5. Reservoir Sedimentation and Sediment Yield Part 6. Groundwater Management Part 7. Application and Case Studies The book includes selected high-quality papers from five series of the International Symposium on Flash Floods in Wadi Systems (ISFF) that were held in 2015, 2016, 2017, 2018, and 2020 in Japan, Egypt, Oman, Morocco, and Japan, respectively. These collections of chapters could provide valuable guidance and scientific content not only for academics, researchers, and students but also for decision-makers in the MENA region and worldwide.
A Case For Pipelining Water Distribution In The Narmada Irrigation System In Gujarat India
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Author : Shah, Tushaar
language : en
Publisher: IWMI
Release Date : 2011-02-08
A Case For Pipelining Water Distribution In The Narmada Irrigation System In Gujarat India written by Shah, Tushaar and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-08 with categories.
Thanks to farmers’ resistance to provide land for constructing watercourses below the outlets, India’s famous Sardar Sarovar Project is stuck in an impasse. Against a potential to serve 1.8 million hectares, the Project was irrigating just 100,000 hectares five years after the dam and main canals were ready. Indications are that full project benefits will get delayed by years, even decades. In this paper, IWMI researchers advance ten reasons why the Project should abandon its original plan of constructing open channels and license private service providers to invest in pumps and buried pipeline networks to sell irrigation service to farmers.
The Nile River Basin
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Author : Seleshi Bekele Awulachew
language : en
Publisher: Routledge
Release Date : 2013-03-05
The Nile River Basin written by Seleshi Bekele Awulachew and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-05 with Science categories.
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.