Agricultural Water Use and Water Productivity in the Large Scale Irrigation (LSI) Schemes of the Nile Basin
The NBI project Efficient Water Use for Agricultural Production (EWUAP) is the first step in bringing together stakeholders to develop a common shared vision on availability and use of water for agricultural production. The objective of this project was to make an inventory of the LSI schemes and their main problems and issues, such as best practices, misconceptions, opportunities, weaknesses and needs. The irrigation conditions were compared to global and/or regional best practices.
Remote Sensing for Decision Support Systems (DSS) in Nile Basin Water Management
Spatial data derived from satellites is of great value for Decision Support Systems (DSS). The Water Resources Planning and Management (WRPM) project of the Nile Basin Initiative (NBI) is currently developing a DSS. A remote sensing scoping study was conducted to learn more about the existence of satellite data archives covering land properties, land surface state variables, and land surface physical processes and the strong advances in remote sensing technologies over recent years.
Wetland evaporation in the Baro-Akobo basin
The Machar wetlands are the major wetland area within the Sobat basin, that is fed by the Baro and Akobo rivers. Due to their inaccessibility little is known about the wetlands in this area, while their impact on stream flow is strong. The objective of this study was to disaggregate the Baro-Akobo-Sobat system into different wetland ecosystems, map the variations in area, and estimate annual evapotranpiration losses for each system identified.
Identification of Irrigated Area and Evapotranspiration of Summer and Winter Crops in Sudan
From a treaty between Egypt and Sudan follows that Sudan is entitled to use approximately 20 BCM of the 80 BCM of water that is available in the Nile in an average year. Currently Sudan is not using its full share and therefore Sudan plans to develop its water resources. This study provided quantified information on water use in Sudan's major irrigation schemes for an average year.
Determination of Water Surface Area and Evaporation Losses from Jebel Aulia Reservoir
The Jebel Aulia reservoir south of Khartoum was constructed to regulate White Nile flows, but due to its large area and limited depth, evaporation losses area large. This project aimed at determining the water surface area and the evaporation losses of the reservoir.
Actual Evapotranspiration in the Baro-Akobo Basin in 2001
The Baro-Akobo basin covers both Sudan and Ethiopia, with the source of the rivers laying in Ethiopia and merging in the Sobat river in Sudan. Aim of this study was to quantify the impact of disconnecting the Machar Marshes in Sudan from the Sobat river. Using SEBAL the impact on stream flow is investigated.