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RheinBlick2050 Final Colloquium

Towards coordinated discharge scenarios for the international Rhine basin
October 13, 2010 to October 14, 2010

Northern hemisphere temperatures 2005


According to current climate projections future climate may be characterised by an increase of the climate system's variability which might also be accompanied by changes in the frequency and intensity of meteorological extreme events. Global climate models indicate robust large-scale changes of the precipitation regime (e.g. decrease of summer-, increase of winter precipitation in Central Europe) (e.g. IPCC, 4AR WG1, 2007). Linked to this are modifications of discharge (low flow and high flow) regimes of European rivers, with variable impacts on managed (anthropogenic) and unmanaged (natural) systems, depending on their sensitivity and vulnerability (ecology, economy, infrastructure, transport, energy production, water management, etc.). Even under an efficient climate change mitigation policy, climate change is going to have impacts in the upcoming years. In this context, decision makers need adequate adaptation strategies to minimize negative effects of climate change, based on up to date knowledge on the potential impacts including uncertainties.

In this context the International Commission for the Hydrology of the Rhine basin (CHR) has carried out the project ‘RheinBlick2050' aiming at the development and interpretation of joint, consistent discharge projections for the international Rhine River catchments. The underluing data and information are compiled from different national research projects from The Netherlands, Germany, France and Switzerland and are based on the most actual climate projections. The findings will help to assess future changes of hydro-meteorological conditions in the Rhine River basin and how such impacts influence hydrologic and hydraulic processes. Potential users of the findings and data, stakeholders and decision makers have been involved.

The International Commission for the Hydrology of the Rhine Basin (CHR) has invited scientists, decision makers and stakeholders in the field of climate research and climate change mitigation for a two-day colloquium. The colloquium was held at the University of Bonn 13 and 14 October 2010 and has presented the results of the RheinBlick2050 project but also results of similar projects in the Rhine basin.


To communicate the state of the art of climate change impacts on the hydrology in the international Rhine River basin
Presentation of the main aspects of the final reporting of the CHR / RheinBlick2050 project


The invitation to the event was issued by the International Commission for the Hydrology of the Rhine Basin (CHR) in cooperation with the Swiss Federal Office for the Environment, the German Federal Institute for Hydrology, the German IHP/HWRP Secretariat and the Dutch Centre for Water Management.


Working language of the workshop was English. 

University of Bonn, Wolfgang-Paul-Saal
Konviktstrasse 9
D-53113 Bonn
Programme and timetable

Day 1 - 13th October 2010

Registration and luncheon - from 12.00 p.m.

13.00 - 13.30
Welcome, general introduction, goals of RheinBlick2050 - Manfred Spreafico, president of CHR, University of Berne, Switzerland 

13.30 - 14.00
Keynote: "Regional climate modelling within the new IPCC activities: What can we expect from CORDEX?" - Claas Teichmann, Max-Planck-Institute for Meteorology, Hamburg, Germany

14.00 - 14.30
Keynote:"Using multiple climate projections from the EU FP6 ENSEMBLES project for hydrological applications" - Phil Graham, Swedish Meteorological and Hydrological Institute, Norrköping, Sweden

14.30 - 15.00
Tea / Coffee

15.00 - 15.30
RheinBlick2050: "Changes in the hydro-meteorological regimes of the Rhine River basin based on bias corrected RCM simulation" - Jules Beersma, Royal Dutch Meteorological Institute, De Bilt, Netherlands 

15.30 - 16.00
RheinBlick2050: "Hydrological model intercomparisons, suitability and robustness studies" - Charles Perrin, Cemagref, Antony, France 

16.00 - 16.30
RheinBlick2050: "Changes in the discharge regimes of the Rhine River during the 21st century. Projections and scenarios of mean and low flow" - Enno Nilson, Federal Institute of Hydrology, Coblence, Germany

16.30 - 17.00
RheinBlick2050: "High flow changes based on KNMI weather generator data" - Otto de Keizer, Deltares, Delft, Netherlands

Participants' dinner

Day 2 - 14th October 2010

09.00 - 09.30
Keynote: "Conclusions of the RheinBlick2050 project and lessons learned" - Klaus Görgen, Centre de Recherche Gabriel Lippmann, Belvaux, Luxembourg

09.30 - 10.10
"Atmospheric data processing and hydrological modelling of large Swiss basins in the frame of the Swiss CCHydro project" - Thomas Bosshard, Technical University Zurich and Massimiliano Zappa, Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, Switzerland 

10.10 - 10.40
"German Federal States activities in relation to climate change impacts along the Rhine River" - Gerhard Brahmer, Hessisches Landesamt für Umwelt und Geologie (HLUG), Wiesbaden, Germany

10.40 - 11.10
Tea / Coffee

11.10 - 11.40
"Effects of climate change on groundwater processes in the Upper Rhine River valley" - Florence Habets, CNRS, UMR Sisyphe, Mines-Paristech, Fontainebleau, France

11.40 - 12.10
"Climate change and its impacts on hydrology in Austria" - Ralf Merz, Technical University Vienna, Austria

12.10 - 12.40
Keynote: "Translating research into policy - the ICPR perspective" - Anne Schulte-Wülwer-Leidig, International Commission for the Protection of the Rhine, Coblence, Germany

12.50 - 13.00
Concluding remarks: host / president CHR

Closing of the colloquium

Evening event

Participants' dinner near the conference centre on 13 October at 19.00 pm 

Coordinating Committee

Klaus Görgen
Centre de Recherche Public
Gabriel Lippmann
41, rue du Brill
L-4422 Luxembourg
Tel. +352 470261 46

Peter Krahe
Federal Institute of Hydrology
P.O. Box 200253
D-56002 Coblence
Tel. +49 261 1306 5234

Enno Nilson
Federal Institute of Hydrology
P.O. Box 200253
D-56002 Coblence
Tel. +49 261 1306 5325

David Volken
Federal Office for the Environment
CH-3003 Bern
Tel. +41 31 324 79 27 

Hendrik Buiteveld
Rijkswaterstaat - Centre for Water Management
P.O. Box 17
NL-8200 AA Lelystad
Tel. +31 320 29 8635

Eric Sprokkereef
Secretariat CHR
P.O. Box 17
NL-8200 AA Lelystad
Tel. +31 320 29 8603


Latest actualisation: 11.10.2010

Name Organization City / Country
Andréassian, Vazken Cemagref Antony Cedex / France
Aschwanden, Hugo Federal Office for the Environment Bern / Switzerland
Barneveld, Hermjan HKV Hydrokontor GmbH Aachen / Germany
Bastian, Christine Administration de la Gestion de l'Eau Luxemburg
Baur, Werner Hochwassernotgemeinschaft Rhein e.V. Bonn / Germany
Bauwens, Alexandra UlG - Gx-ABT Hydrology and Hydraulic Engineering Gembloux / Belgium
Beersma, Jules KNMI De Bilt / Netherlands
Belz, Jörg Uwe Federal Institute of Hydrology Koblenz / Germany
Blom, Gerard Deltares Delft / Netherlands
Booij, Martijn University of Twente Enschede / Netherlands
Bosshard, Thomas IAC ETH Zürich Zürich / Switzerland
Bourqui, Marie Electricité de France - R&D Chatou / France
Brahmer, Gerhard Hessisches Landesamt für Umwelt und Geologie Wiesbaden / Germany
Broseliske, Gerard Centre for Water Management Lelystad / Netherlands
Buiteveld, Hendrik Centre for Water Management Lelystad / Netherlands
Carambia, Maria Federal Institute of Hydrology Koblenz / Germany
Caspary, Hans J. Hochschule für Technik Stuttgart / Germany
Coron, Laurent Electricité de France Chatou / France
Demirel, Mehmet C. University of Twente - Faculty of Engineering Technology Enschede / Netherlands
Detrembleur, Sylvain University of Liege Liege / Belgium
Fournier, Maïté EPAMA Charleville-Mézières / France
Franke, Gerd Wasser- und Schifffahrtsdirektion West Münster / Germany
Gellweiler, Inga IKSMS Projekt FLOW MS Trier / Germany
Gerlinger, Kai HYDRON GmbH Karlsruhe / Germany
Görgen, Klaus Centre de Recherche Gabriel Lippmann Belvaux / Luxemburg
Graham, Phil Swedish Meteorological and Hydrological Institute Norrköping / Sweden
Gratzki, Annegret German Weather Service Offenbach / Germany
Grigoryan, Gayane University of Trier Trier / Germany
Groen, Klaas Rijkswaterstaat Centre for Water Management Lelystad / Netherlands
Habets, Florence CNRS, UMR Sisyphe, Mines-Paristech Fontainebleau / France
Hausmann, Bernd RWTH Aachen - Lehr und Forschungsgebiet Ingenieurhydrologie Aachen / Germany
Hennegriff, Wolfgang Landesamt für Umwelt, Messungen und Naturschutz Baden-Württemberg Karlsruhe / Germany
Hirt, Ulrike Leibniz-Institute of Freshwater Ecology and Inland Fisheries Berlin / Germany
Horsten, Theresa Federal Institute of Hydrology Koblenz / Germany
Hüsemann, Wilhem Wasserverband Obere Lippe Büren / Germany
Keizer, Otto de Deltares Delft / Netherlands
Kerstgens, Heinrich Contargo GmbH & Co. KG Ludwigshafen / Germany
Kjellgren, Stina Universität Stuttgart / Germany - Abteilung für Technik- und Umweltsoziologie Stuttgart / Germany
Klein, Bastian Federal Institute of Hydrology - Referat M2 Koblenz / Germany
Kotlarski, Sven Institute for Atmospheric and Climate Science, ETH Zürich Zurich / Switzerland
Krahe, Peter Federal Institute of Hydrology Koblenz / Germany
Lammersen, Rita Rijkswaterstaat Centre for Water Management Lelystad / Netherlands
Linde, Aline te Deltares Delft / Netherlands
Ludwig, Karl Büro Ludwig: Wasserwirtschaft - Wasserbau GmbH Karlsruhe / Germany
Maire, Philippe Agence de l'Eau Rhin Meuse Moulins-lès-Metz / France
Mathevet, Thibault EDF DTG - Equipe DMM Grenoble Cedex 09 / France
Maurer, Thomas Federal Institute of Hydrology Koblenz / Germany
Mehling, Andrea Federal Institute of Hydrology Koblenz / Germany
Merz, Ralf Institute of Hydraulic Engineering and Water resources Management. Vienna University of Technology Vienna / Austria
Middelkoop, Hans Utrecht University - Faculty Physical Geography Utrecht / Netherlands
Möller, Christian A. BI Rheinpassagen Bonn / Germany
Moser, Hans Federal Institute of Hydrology Koblenz / Germany
Müller, Gabriele BMLFUW Vienna, Hydrological Service Austria Vienna / Austria
Nilson, Enno Federal Institute of Hydrology Koblenz / Germany
Ohlwein, Christian Meterological Institute University Bonn Bonn / Germany
Patt, Heinz United Nations University - Institute for Environment and Human Security Bonn / Germany
Perrin, Charles Cemagref Antony Cedex / France
Richter, Karl-Gerd Aquantec GmbH Karlsruhe / Germany
Ruijgh, Erik Deltares Delft / Netherlands
Saha, Dieter Michael Central Commission for the Navigation of the Rhine Strasbourg / France
Schädler, Bruno Geographical Institute University Bern. Group for Hydrology Bern / Switzerland
Schellekens, Jaap Deltares Delft / Netherlands
Schlenkhoff, Andreas Bergische Universität Wuppertal - Institute for Geotechnics, Waste Management & Hydro Sciences Wuppertal / Germany
Schmitt, Matthias Arbeitsgemeinschaft Rhein-Wasserwerke e.V. Cologne / Germany
Schmocker-Fackel, Petra Federal Office for the Environment Bern / Switzerland
Schulte-Wülwer-Leidig, Anne International Commission for the Protection of the Rhine (ICPR) Koblenz / Germany
Spreafico, Manfred University Bern, Geographical Institute Bern / Switzerland
Sprokkereef, Eric Secretariat CHR Lelystad / Netherlands
Steege, Volker Bundesministerium für Verkehr, Bau und Stadtentwicklung, Referat WS 14 Bonn / Germany
Teichmann, Claas Max-Planck-Institute for Meteorology Hamburg / Germany
Terlou, Alberty Secretariat CHR Lelystad / Netherlands
Thierion, Charlotte Mines Paristech - UPMC Fontainebleau / France
Thysebaert, Didier de Service Public de Wallonie - Direction Générale de l'Agriculture, des Ressources naturelles et de l'Environnement Namur / Belgium
Volken, David Federal Office for the Environment Bern / Switzerland
Weidenhaupt, André Administration de la gestion de l'eau Luxemburg
Willems, Winfried IAWG Ottobrunn/ Germany
Zappa, Massimiliano Swiss Federal Research Institute WSL Birmensdorf / Switzerland
Zehetmair, Swen University of Bonn - Geographical Institute Bonn / Germany