International Commission for the Hydrology of the Rhine Catchment
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International Commission for the Hydrology of the Rhine Catchment (CHR) Hendrik Buiteveld, based on presentation of Eric Sprokkereef Rijkswaterstaat Centre for Water Management Content • CHR • Scope of CHR • projects Source of the Rhine Rijkswaterstaat 2 International Commission for the Hydrology of the Rhine Catchment(CHR) • Founded in 1970 the framework of the International Hydrological Decade of UNESCO • Co-operation on the basis of a memorandum of understanding (‘Note Verbale’) between the Ministries of Foreign Affairs of the member states • http://www.chr-khr.org/ Rijkswaterstaat 3 International Commission for the Hydrology of the Rhine Catchment(CHR) • Since 1975 co-operation in the framework of the International Hydrological Program (IHP) of UNESCO and the Hydrological Water Resources Program (HWRP)), of WMO • Today co-operation of hydrological institutes in the Rhine basin Rijkswaterstaat 4 Mission and tasks CHR initiates and carries out hydrological studies for sustainable development of the Rhine basin and makes the results of these studies available to responsible authorities in the Rhine riparian states and to the EU. This way CHR tries to contribute to the development and evaluation of water management strategies. Rijkswaterstaat 5 0 30 60 90 120 150 km Organization Netherlands North Sea Amsterdam Rotterdam IJssel • Co-operation institutes Nederrijn Waal Lippe – Switzerland Germany • Federal Office for the Environment, Bern Ruhr Ruhr area • Federal Institute for Water Supply, Waste Water Treatment and Water Protection (EAWAG), Dübendorf Belgium Rijn – Austria Lahn Frankfurt • Hydrological Bureau, Vienna Main • Hydrological Service of the federal state Vorarlberg, Bregenz Lux. Moezel Mannheim Saar – Germany Neckar • Federal Institute of Hydrology (BfG), Koblenz (president: Hans Moser) • German national IHP/HWRP Committee, Koblenz France Stuttgart Strasburg • State institute for Environment and Geology of the federal state Hessen, cities Wiesbaden Ill > 500.000 inh – France 250.000 - 500.000 inh. 100.000 - 250.000 inh. national boundaries • CEMAGREF, Paris Zürich Rhine basin Bazel river Rhine Aare – Luxemburg main tributaries Austria • National Water Management Service Switzerland – Netherlands Italy • Centre for Water Management of the Ministry of InfrastructureRWS-RIZA and the Environment, Lelystad (scientific secretary: Eric Sprokkeef) • Deltares, Delft Rijkswaterstaat 6 CHR - subject • Extension of knowledge about the hydrology of the Rhine basin • Contribution to solving cross-border problems • Data base Precipitation / discharge • Sediment transport • Discharge regime 1900 – 2000, can we see trends? Rijkswaterstaat 7 Discharge regime Rhine 20th century Rijkswaterstaat 8 CHR - subject • Extension of knowledge about the hydrology of the Rhine basin • Contribution to solving cross-border problems • Data base Precipitation / discharge • Sediment transport • Discharge regime 1900 – 2000, can we see trends? • Discharge regime and climate change, results are input to ICPR Rijkswaterstaat 9 RheinBlick2050 Development of joint climate and discharge projections for the international Rhine River catchment K. Görgen (CRP-GL, Project-Coordinator) and the RheinBlick2050 project group: D. Volken (BAFU); C. Perrin (Cemagref); P. Krahe, M. Carambia, E. Nilson (BfG); G. Brahmer (HLUG); H. Buiteveld (RWS); J. Beersma (KNMI); O. de Keizer (Deltares) and others Rijkswaterstaat 65 CHR meeting, 26/27 May 2010, Alkmaar (NLD) 10 10 Source: BfG Rijkswaterstaat 11 Conclusions ... so far ... • Wetter winters, dryer summers • Increase of winter, decrease of summer discharge • Average changes more robust than changes in the extremes • Homogeneous directions of change • Results do not contradict existing work • However no smaller bandwidth • Input for the scenario choice Rhine Commission (ICPR) Rijkswaterstaat 12 12 Climate scenario report ICPR Rijkswaterstaat 13 Thank you for your attention Eric Sprokkereef (Rijkswaterstaat) Secretariat CHR / KHR e-mail: [email protected] phone: +31.320.298 832 / 298 603 web-address: http://www.chr-khr.org PO Box 17, 8200 AA Lelystad, The Netherlands Maeslantkering Rijkswaterstaat 14 Characteristics of the Rhine Length 1.230 km 0 30 60 90 120 150 km Netherlands Basin size 185,000 km2 North Sea Amsterdam Rotterdam IJssel Nederrijn Waal Lippe Germany Germany 56 % Ruhr Ruhr area Switzerland 15 % Belgium Netherlands 13 % Rijn Lahn France 12 % Frankfurt Main Moezel Belgium 2 % Lux. Mannheim Saar Neckar Luxembourg 1 % Austria 1 % France Stuttgart Strasburg Liechtenstein 0 % cities Ill Italy 0 % > 500.000 inh 250.000 - 500.000 inh. 100.000 - 250.000 inh. national boundaries Zürich Rhine basin Bazel river Rhine Avg precipitation +/- 950 mm/year Aare main tributaries Austria Switzerland 3 Avg Q (outlet) 2.200 m /s Italy RWS-RIZA Peak Q (outlet) 13.000 m3/s Rijkswaterstaat Rhine15 basin .