The Nile Basin
Transcription
The Nile Basin
The Nile Basin DSS Grenzübergreifendes Managementsystem für Wasserressourcen im Einzugsgebiet des Nils © DHI Group Presentation Monday, 22 June 2015 A transboundary DSS for water resources management in the Nile River Basin 1 DHI in brief 50 years of experience in Software development, Consulting and Capacity development We are independent 1.100 highly qualified staff We are global © DHI We are dedicated and committed to Water sufficiency © DHI Food security Sustainable cities Efficient infrastructure Climate adaptation Environmental protection Whatever your need in water environments We can help you Save water © DHI Improve its quality Share it fairly Quantify its impact Protect from its effects Manage its flow Whatever your need in water environments We can help you Save water © DHI Improve its quality Share it fairly Quantify its impact Protect from its effects Manage its flow The Nile Basin • World’s Longest - 6700km • Area: 3.2 million sq.km • shared by 10 countries • Population in basin > 200 mill. • Water scarce area • Rich natural and environmental assets 6 The Nile Basin at a glance 1 Nile (at Dongola); 80 BCM/y 2 Atbara (at Mouth); 11.1 BCM/y 3 1 2 3 4 White Nile (@ mogren); 11.1 BCM/y 4 Blue Nile (@ Khartoum); 48.3 BCM/y 9 Sudd outflow; 16.5 BCM/y 10 9 10 Sobat(@ Hillet Dolieb); 13.5 BCM/y 15 15 Bahr el -Jebel (@ Mongala); 36 BCM/y 19 19 20 Lake Victoria (@ outflow); 28.6 BCM/y 20 Kagera (@ fery); 6.3 BCM/y The Nile Basin at a glance 1 Nile (at Dongola); 80 BCM/y 2 Atbara (at Mouth); 11.1 BCM/y 3 1 2 3 4 4 White Nile (@ mogren); 11.1 BCM/y Blue Nile (@ Khartoum); 48.3 BCM/y 9 Sudd outflow; 16.5 BCM/y 10 Sobat(@ Hillet Dolieb); 13.5 BCM/y 1 15 15 Bahr el -Jebel (@ Mongala); 36 BCM/y 19 19 20 Lake Victoria (@ outflow); 28.6 BCM/y 20 Kagera (@ fery); 6.3 BCM/y The Nile Basin at a glance 1 Nile (at Dongola); 80 BCM/y 2 1 2 3 4 9 10 15 19 20 The Blue Nile 11.1 Atbara (at Mouth); BCM/y Lake Victoria basin The3Sudd Wetlands • ~ 60 per cent of annual flow White Nile (@ mogren); 11.1 BCM/y • transboundary lake The Nile Delta, Egypt •Unique large tropical wetland (RAMSAR) 4 atincoming Egypt nd largest • Nile regulated High Dam •Aswan, 2(@ freshwater lake Blue Nile Khartoum); 48.3 BCM/y •~50% offully flow(Aswan lost to ET and largest in Africa Close zero rainfall 9• Very seasonal ••source oftowater for domestic, livestock, Sudd outflow; 16.5 BCM/y • Well developed water resources • Major source of water for and wildlife use (and fishery) • Limited water infrastructure 10 infrastructure Urban use, irrigation, • Major interest to conserve water lost Sobat(@ Hillet Dolieb); 13.5 BCM/y • Very large HPP potential • evaporation Main challenges: decline in per fishery, navigation by (Jonglei Canal) 15 capita water el (@ Mongala); 36 BCM/y • -Jebel Keyavailability, challenges: lake level •Bahr Opportunities for declining regional water quality, sea level rise, soil 19 decline, water quality cooperation salinization Lake Victoria (@ outflow); 28.6 BCM/y • Potential impact of upstream 20 developments on6.3 water availability ? Kagera (@ fery); BCM/y The situation in short • Downstream countries that rely almost completely on the Nile water • Upstream countries with a desire and potential to develop water infrastructure • Environmental issues and important ecosystems (e.g. the Sudd, Lk. Vic) • Water allocation agreements that inhibit upstream development projects © DHI Group Monday, June 22, 2015 10 Background Key Treaties and Events Various Bi-lateral Agreements Sudan/Egypt and upstream riparians (no downstream Impacts unless agreed with Sudan/Egypt) High Aswan Dam (1955) Capacity 111 BCM. Nile Basin Treaty (1959): 55.5 BCM/yr for Egypt 18.5 BCM/yr for Sudan. Nile Basin Initiative (NBI) Established (1999) Under the NILE COM (Ministers of Water Affairs) • promote cooperation and co-ordination in the Basin The Nile Basin - Countries - 3 year project - 10 countries - 8 priority concerns EGY BUR SUD RWA SSUD NBI DRC ETH TAN UGA KEN © DHI Group Monday, June 22, 2015 12 Nile Basin DSS – Water Resources issues Decision Support System: Requirements … Nile Basin perspective • Provide a generic framework • Have a flexible architecture whereby different approaches for modeling can be employed • Support modeling, scenario building and evaluation • Support multi-objective optimization and tradeoff analysis facility • Provide user extendable toolset for addressing specific issues; case of environmental, socio-economic objectives • Provide transparent and simple facility for stakeholder dialogue in evaluation of scenarios • Support collaboration and learning among riparian professionals • Process as important as the final product 14 Nile Basin Water Resources Management Burundi, DR Congo, Egypt, Ethiopia, Kenya, Rwanda Sudan, Tanzania, Uganda Cost benefit Time series System optimization GIS Multi criteria analysis Scenarios Solution The Nile Basin decision support system (NB DSS) integrates climatological, hydrological and environmental data with sophisticated water simulation models, together with sector economic production models, cost benefit and multicriteria analysis tools. Nile Basin Water Resources Management Burundi, DR Congo, Egypt, Ethiopia, Kenya, Rwanda Sudan, Tanzania, Uganda Solution Cost benefit System optimization Multi criteria analysis The Nile Basin decision support system (NB DSS) integrates data: • Climatological • Hydrological • Environmental Time series GIS with the following: • sophisticated water simulation models • sector economic production models • cost benefit analysis • multicriteria analysis tools Scenarios Building a Decision Support System Implementation Scoping and solution design and testing Maintenance and Support NB DSS © DHI Group Monday, 22 June 2015 17 How it was done Inception High level software requirements High level software architecture Project Implementation Plan Requirement and design workshop Detailed requirements Detailed software design Refined implementation plan Release 1 Requirement and Design Document Release 2 Software Release Training Release 3 Acceptance Test Acceptance © DHI Group Monday, June 22, 2015 18 DSS components • Data/information management system – – – – • Modeling System – – – – – • Time Series analysis toolkit Basic GIS functionality Integrated database Ensemble generator (for probabilistic analysis) Water balance and allocation model Rainfall-runoff modeling tools Hydrodynamic modeling Soil erosion process model Evapotranspiration modeling Decision making/Analysis tools – – – – Scenario management including indicator calculation Multi-objective optimization Economic analysis tools Multi-criteria analysis tool 19 Implementation Customised UI A Typical RealTime Solution RT data RT data sources RT data sources sources DIMS Tasks Roles © DHI Group Database DIMS Configuration RealTime UI Web publishing Create jobs Prepare data Run models Extract results Dashboard Manager Config MC Solution Designer MC Configurator: • • • • • • Client business processes Use cases Requirement documentation User interface design Monday, 22 June 2015 System knowledge Scriptin 20 MC Solution Developer • • Develop custom made components Develop Custom made UI NB DSS Technology Framework NB DSS Time series Spreadsheets GIS MCA/CBA Scenarios Dashboard (web publishing) Optimisation Work spaces Ensembles Meta data Scripting Indicators RT data sources RT data sources RT data sources RT data sources RT data sources RT data sources RT data sources Data base The Nile Basin Decision Support System in brief The Nile Basin Decision Support System is a:. comprehensive analytical framework that integrates: - Real time data - Information management system (database, GIS, data processing tools, ..) - Water Resources Modeling system - Analytic tools (optimization, benefit-cost analysis, multi-criteria analysis, ...) In a user friendly graphical user interface (GUI) 22 Nile Basin baseline model (from NB DSS) 23 Scenario management tool Tool to support defining, simulating, analyzing and evaluating scenarios – Interactive (graphical) scenario definition/editing – Simple visualization of scenarios – Scenario simulation – Scenario Comparison 24 NB DSS – a lot more than hydrology Indicators of What matters Hydrology/Hydraulics Response functions; other data DSS Toolset 25 Decision making tools - Economic analysis of scenarios (CBA) - Tradeoff analysis 26 - Multi-Criteria Example of key issues being explored using NB DSS • Understanding how the water resources system of the Nile Basin operates • Climate Change Impacts • Assessing likely future scenarios • Downstream impacts of upstream developments • Finding mutually beneficial development/management paths • Intelligent operation schemes for new dams upstream to minimize impacts downstream? • How much water can be conserved from the wetlands? • What are the trade-offs (sectoral, country-wise, upstream-downstream) if hydropower dams are developed in the Blue Nile Basin in Ethiopia? 27 The developper’s view: DHI • Preparation – – • Knowledge – – • Take ownership and responsibility (through involvement of all key stakeholders) Political backup – • a strong group of competent and dedicated people to manage the project to interact and challenge the consultant That there is a real need and a clear vision Responsibility – • NBI secured buy-in by key stakeholders before the project starts Know what they want and have made that clear in solid TOR/Project documents Complex in the Nile Basin but DHI felt a genuine interest and back-up from water authorities and some concern from political level Sustainability – – – © DHI Group Capacity (organisational and institutional) Ability to sustain and further develop capacity Money, funded through governments rather than donors Monday, June 22, 2015 28 Dr. Elimar Precht – epr@dhigroup.com © DHI – Photo credits: © DHI / © istock / © Nestlé