Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Doctorat → Royaume-Uni → 2020 → Water resources management & hydroclimatic data analysis in transboundary river basins under the influence of climate variability & water abstraction : Nile river basin

Salford University (2020)

Water resources management & hydroclimatic data analysis in transboundary river basins under the influence of climate variability & water abstraction : Nile river basin

Ahmed, Y

Titre : Water resources management & hydroclimatic data analysis in transboundary river basins under the influence of climate variability & water abstraction : Nile river basin

Auteur : Ahmed, Y

Université de soutenance : Salford University

Grade : Doctor of Philosophy (PhD) 2020

Résumé partiel
Water is a vital component for developing nations, as it is important for human consumption and domestic use, irrigation, and industry. The freshwater availability for each country should be known or estimated to sustainably manage its available supply, or its share of available water in case of transboundary basins during the subsequent years. The freshwater availability in the present and the future is governed by two factors : the effects of climate change or climate variability and the effects of human induced factors. The climate change can be sensed from the increase or decrease of precipitation, increase in temperatures, and increased prevalence of heat waves, drought events and the degree of severity of the drought events in some areas and increase in floods in other areas. The human induced factors can be witnessed in the change of land use, damming the rivers and excessive water obstruction and withdrawal. The sustainable management of the available water resources is essential for future generations and environmental resources, especially with the present and possible future challenges in terms of increase in demand due to population growth and possible changes in precipitation. The application of water resources management practices is more difficult to achieve in transboundary river basins. Sustainable management could be achieved by assessing the utilization of the water at a transboundary scale besides studying the possible impacts of climate change and applying mitigation measures to avoid water scarcity in downstream countries. The problems facing transboundary river basins are very complicated and there is a need to study the problems occurring due to the human interventions and climate change or climate variability, which will give a solid ground to determine how much the river flow is being affected qualitatively and/or quantitively and try to find suitable effective solutions for each of them. In this thesis the case of the Nile river basin will be representative of several shared river basins. The Nile river basin is third biggest river basin in the world and the second largest basin in Africa after the Congo basin in terms of area. It is shared between eleven countries and covers about 10% of African land. This thesis aims to present an analytical framework to determine how the river discharge has been affected by the influence of both climate variability and human induced factors. The findings from this thesis can support better understanding of the changes occurring in river discharge due to coupled impact of climate variability and river damming. The study of the changes occurring in the river discharge due to climate variability and human intervention can lead to better planning for sustainable management practices of water resources in transboundary river basins especially in arid and semi-arid regions. River flows have different fluctuations in river discharge as a result of the influence of the change in climate and human influence. The main aim of this research is to measure how the climate variability and human intervention affect the river flow either as an increase or a decrease in river discharge. The change in river discharge occurs based on the degree of intervention and the climatic conditions. Thus, the relation between the degree of human intervention and climate variability to the river discharge could or might help in taking the optimum procedure in the sustainable management of water resources, and help in negotiations between riparian countries to reach to a suitable treaty saving the rights of both upstream countries and downstream countries, and establish effective measure(s) to mitigate the water scarcity crises

Présentation

Page publiée le 20 avril 2021