Understanding Catchment Processes And Hydrological Modelling In The Abay Upper Blue Nile Basin Ethiopia
DOWNLOAD
Download Understanding Catchment Processes And Hydrological Modelling In The Abay Upper Blue Nile Basin Ethiopia PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Understanding Catchment Processes And Hydrological Modelling In The Abay Upper Blue Nile Basin Ethiopia book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Understanding Catchment Processes And Hydrological Modelling In The Abay Upper Blue Nile Basin Ethiopia
DOWNLOAD
Author : SIRAK TEKLEAB. GEBREKRISTOS
language : en
Publisher: CRC Press
Release Date : 2018-09-27
Understanding Catchment Processes And Hydrological Modelling In The Abay Upper Blue Nile Basin Ethiopia written by SIRAK TEKLEAB. GEBREKRISTOS and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-27 with categories.
The Abay / Upper Blue Nile basin contributes the largest share of discharge to the river Nile. However, the basin exhibits large spatio-temporal variability in rainfall and runoff. Moreover, human activities also impact hydrological processes through intensive agriculture, overgrazing and deforestation, which substantially affect the basin hydrology. Thus, understanding hydrological processes and hydro-climatic variables at various spatio-temporal scales is essential for sustainable management of water resources in the region. This research investigates the hydrology of the basin in depth using a range of methods at various spatio-temporal scales. The methods include long-term trend analysis of hydroclimatic variables, hydrologic responses analysis of land cover change, stable isotope techniques and process based rainfallrunoff modelling. A combination of field investigations with new measurements of precipitation, water levels and stable isotopes as well as existing hydro-climatic data offered gaining new insights about runoff generation processes in headwater catchments. The use of rainfall-runoff modelling in two meso-scale catchments of the Abay basin depict that a single model structure in a lumped way for the entire Abay basin cannot represent all the dominant hydrological processes. The results of the different approaches demonstrated the potential of the methods to better understand the basin hydrology in a data scarce region.
Understanding The Impact Of Human Interventions On The Hydrology Of Nile Basin Headwaters The Case Of Upper Tekeze Catchments
DOWNLOAD
Author : Tesfay Gebremicael
language : en
Publisher: CRC Press
Release Date : 2019-11-26
Understanding The Impact Of Human Interventions On The Hydrology Of Nile Basin Headwaters The Case Of Upper Tekeze Catchments written by Tesfay Gebremicael and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-11-26 with Science categories.
The availability and distribution of water resources in catchments are influenced by various natural and anthropogenic factors. Human-induced environmental changes are key factors controlling the hydrological flows of semi-arid catchments. Land degradation, water scarcity and inefficient utilization of available water resources continue to be important constraints for socio-economic development in the headwater catchments of the Nile river basin in particular over the Ethiopian Catchments. This research investigates the impact of landscape anthropogenic changes on the hydrological processes in the Upper Tekeze basin (A tributary of the Nile). The hydrology of the basin is investigated through analysis of hydro-climatic data, remote sensing techniques, new field measurements and parsimonious hydrological models. The empirical evidence provided in this book confirms that human-induced environmental changes can significantly change the hydrology of catchments, both in negative (degradation) and in positive (restoration) ways. This book also shows that rainfall-runoff relationships in semi-arid catchments are non-uniform and hence the application of hydrological models in such catchments need special attention. Moreover, parsimonious dynamic hydrological model improves our understanding of the hydrological response to dynamic environmental changes.
Nile River Basin
DOWNLOAD
Author : Assefa M. Melesse
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-03-28
Nile River Basin written by Assefa M. Melesse and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-28 with Science categories.
This book presents results of scientific studies ranging from hydrological modelling to water management and policy issues in the Nile River basin. It examines the physical, hydrometeorological and hydrogeological description of the basin along with analysis in understanding the hydrological processes of the basin under the changing land-use stemming from population pressure and increased natural resources tapping. The book discusses the increased impact of climate change on the river flows, and such issues as water availability and demand, management and policy to offset the imbalance between demand and available resources. This book will be of interest to researchers, practitioners, water resources mangers, policy makers as well as graduate and undergraduate students. It is a useful reference text for ecohydrology, arid zone hydrology, hydrology of transboundary rivers and similar courses.
Making Water Security
DOWNLOAD
Author : Hermen Smit
language : en
Publisher: CRC Press
Release Date : 2020-02-04
Making Water Security written by Hermen Smit and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-04 with Science categories.
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.
A Review Of Hydrology Sediment And Water Resource Use In The Blue Nile Basin
DOWNLOAD
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.
Integrated Modeling Of Land And Water Resources In Two African Catchments
DOWNLOAD
Author : Seleshi Getahun Yalew
language : en
Publisher: CRC Press
Release Date : 2018-03-14
Integrated Modeling Of Land And Water Resources In Two African Catchments written by Seleshi Getahun Yalew and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-14 with Science categories.
Demand for land and water for agriculture, urbanization, irrigation, hydropower, and industrialization is increasing to meet the demands of growing populations and of growing economies. However, changes in land and water resources are often studied separately. A better representation of the interaction between land-use change and its drivers on the one hand and water resources on the other is imperative for sustainable environmental management. This research investigates and develops spatial analysis methods and tools for the quantification of dynamic feedbacks between land-use change and water resources, by focusing on case study catchments in Ethiopia and South Africa. Furthermore, the research investigates methods for analysing land-use suitability and modelling land-use change. Results show that major changes in land-use have been observed in the past two to three decades in the study catchments. Model representation of the interaction between land-use change and water resources shows that changes in land-use influence hydrologic responses. These influences are especially pronounced during high- and low-flow seasons. Likewise, hydrologic processes and water resources availability influence land-use suitability and hence land-use change responses. Accounting for the dynamic feedback between land-use and hydrology thus produces improved knowledge that can better inform integrated natural resources management.
Understanding The Impact Of Human Interventions On The Hydrology Of Nile Basin Headwaters The Case Of Upper Tekeze Catchments
DOWNLOAD
Author : Tesfay Gebretsadkan Gebremicael
language : en
Publisher:
Release Date : 2019
Understanding The Impact Of Human Interventions On The Hydrology Of Nile Basin Headwaters The Case Of Upper Tekeze Catchments written by Tesfay Gebretsadkan Gebremicael and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Water-supply categories.
The availability and distribution of water resources in catchments are influenced by various natural and anthropogenic factors. Human-induced environmental changes are key factors controlling the hydrological flows of semi-arid catchments. Land degradation, water scarcity and inefficient utilization of available water resources continue to be important constraints for socio-economic development in the headwater catchments of the Nile river basin in particular over the Ethiopian Catchments. This research investigates the impact of landscape anthropogenic changes on the hydrological processes in the Upper Tekeze basin (A tributary of the Nile). The hydrology of the basin is investigated through analysis of hydro-climatic data, remote sensing techniques, new field measurements and parsimonious hydrological models. The empirical evidence provided in this book confirms that human-induced environmental changes can significantly change the hydrology of catchments, both in negative (degradation) and in positive (restoration) ways. This book also shows that rainfall-runoff relationships in semi-arid catchments are non-uniform and hence the application of hydrological models in such catchments need special attention. Moreover, parsimonious dynamic hydrological model improves our understanding of the hydrological response to dynamic environmental changes.
Extreme Hydrology And Climate Variability
DOWNLOAD
Author : Assefa M. Melesse
language : en
Publisher: Elsevier
Release Date : 2019-07-03
Extreme Hydrology And Climate Variability written by Assefa M. Melesse and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-03 with Science categories.
Extreme Hydrology and Climate Variability: Monitoring, Modelling, Adaptation and Mitigation is a compilation of contributions by experts from around the world who discuss extreme hydrology topics, from monitoring, to modeling and management. With extreme climatic and hydrologic events becoming so frequent, this book is a critical source, adding knowledge to the science of extreme hydrology. Topics covered include hydrometeorology monitoring, climate variability and trends, hydrological variability and trends, landscape dynamics, droughts, flood processes, and extreme events management, adaptation and mitigation. Each of the book's chapters provide background and theoretical foundations followed by approaches used and results of the applied studies. This book will be highly used by water resource managers and extreme event researchers who are interested in understanding the processes and teleconnectivity of large-scale climate dynamics and extreme events, predictability, simulation and intervention measures. Presents datasets used and methods followed to support the findings included, allowing readers to follow these steps in their own research Provides variable methodological approaches, thus giving the reader multiple hydrological modeling information to use in their work Includes a variety of case studies, thus making the context of the book relatable to everyday working situations for those studying extreme hydrology Discusses extreme event management, including adaption and mitigation
Climate Change Impacts On Hydrology And Water Resources Of The Upper Blue Nile River Basin Ethiopia
DOWNLOAD
Author : Kim, U., Kaluarachchi, J. J., Smakhtin, V. U.
language : en
Publisher: IWMI
Release Date : 2008
Climate Change Impacts On Hydrology And Water Resources Of The Upper Blue Nile River Basin Ethiopia written by Kim, U., Kaluarachchi, J. J., Smakhtin, V. U. and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Climate change mitigation categories.
The report evaluates the impacts of climate change on the hydrological regime and water resources of the Blue Nile River Basin in Ethiopia. It starts from the construction of the climate change scenarios based on the outcomes of several general circulation models (GCMs), uses a simple hydrological model to convert theses scenarios into runoff, and examines the impacts by means of a set of indices. The results, however uncertain with existing accuracy of climate models, suggest that the region is likely to have the future potential to produce hydropower, increase flow duration, and increase water storage capacity without affecting outflows to the riparian countries in the 2050s.
Nile And Grand Ethiopian Renaissance Dam
DOWNLOAD
Author : Assefa M. Melesse
language : en
Publisher: Springer Nature
Release Date : 2021-08-31
Nile And Grand Ethiopian Renaissance Dam written by Assefa M. Melesse and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-08-31 with Science categories.
This book is a contribution by the presenters of the 2020 International Conference on the Nile and Grand Ethiopian Renaissance Dam (GERD). The Nile basin is facing unprecedented level of water right challenges after the construction of GERD has begun. Ethiopia, Egypt and Sudan have struggled to narrow their differences on filling and operation of the GERD. The need for science and data-based discussion for a lasting solution is crucial. Historical perspectives, water rights, agreements, failed negotiations, and other topics related to the Nile is covered in this book. The book covers Nile water claims past and present, international transboundary basin cooperation and water sharing, Nile water supply and demand management, Blue Nile/Abbay and Grand Ethiopian Renaissance Dam, land and water degradation and watershed management, emerging threats of the Lakes Region in the Nile Basin, and hydrologic variation and monitoring. This book is beneficial for students, researchers, sociologists, engineers, policy makers, lawyers, water resources and environmental managers and for the people and governments of the Nile Basin.