Executive Summary Heun, J.C., De Groen, M.M., Werner, M., March 2002
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STORM Report Series No. 7 Simulation Tool for River Management STORM - Rhine Main Report Design of the Roleplay March 2002 STORM Report Series No. 7 Simulation Tool for River Management STORM - Rhine Main report Design of the Roleplay March 2002 The STORM project is sponsored by: IRMA-SPONGE: Roleplay for transboundary river management (Project number: 3/NL/1/164/ 99 15 183 01) Delft Cluster: Ontwikkeling rollenspelen integraal waterbeheer (Project number: 06.01.06) The STORM projects are carried out in partnership by: International Institute for Infrastructure, Hydraulics and Environment P.O.Box 3015; 2601 DA Delft; The Netherlands Contact: J.C.Heun, +31-15-2151835, [email protected] Contact: T.D.Schotanus, +31-15-2151853, [email protected] Resource Analysis Zuiderstraat 110; 2611 SJ Delft; The Netherlands Contact: M.M.de Groen, +31-15-2191526, [email protected] WL | Delft Hydraulics P.O.Box 177; 2600 MH Delft; The Netherlands Contact: M. Werner, +31-15-2858807; [email protected] STORM Report Series: 1. STORM – BETUWE, Final Report, Design of the Roleplay Schmidt, A.L., October 1998 2. STORM – BETUWE, User Manual, Design of the Roleplay Schmidt, A.L., October 1998 3. STORM – DELTA, Definitiestudie: demonstratiemodel voor Rivierinrichting Schmidt, A.L., December 1998 4. STORM – DELTA, Main Report, Design of the Model De Graaff, B.J., December 1999 5. STORM – DELTA Main Report, User Manual De Graaff, B.J., December 1999 6. STORM – RHINE, Main Report, Executive Summary Heun, J.C., De Groen, M.M., Werner, M., March 2002 7. STORM – RHINE, Main Report, Design of the Roleplay Heun, J.C., De Groen, M.M., Werner, M., Schotanus, T.D.; March 2002 7A. STORM – RHINE, Main Report, Annex A, Documentation on Models on Water Werner, M., March 2002 8. STORM – RHINE, Main Report, User Manual Schotanus, T.D., Versteeg, A., July 2002 9. STORM – RHINE Supporting Document 1: Dutch-German Water Management of the River Rhine, MSc. thesis Bijman, S., January 2002 10. STORM – RHINE Supporting Document 2: Deciding about Safety; Flood Protection & Decision-Making Processes in Germany at the local level; M.Sc.thesis Leene, T.A., August 2002 IRMA project number: 3/NL/1/164/ 99 15 183 01 The IRMA-SPONGE Umbrella Program In recent years, several developments have contributed not only to an increased public interest in flood risk management issues, but also to a greater awareness of the need for improved knowledge supporting flood risk management. Important factors are: • Recent flooding events and the subsequently developed national action plans. • Socio-economic developments such as the increasing urbanisation of flood-prone areas. • Increased awareness of ecological and socio-economic effects of measures along rivers. • Increased likelihood of future changes in flood risks due to land use and climate changes. The study leading to this report aimed to fill one of the identified knowledge gaps with respect to flood risk management, and was therefore incorporated in the IRMA-SPONGE Umbrella Program. This program is financed partly by the European INTERREG Rhine-Meuse Activities (IRMA), and managed by the Netherlands Centre for River Studies (NCR). It is the largest and most comprehensive effort of its kind in Europe, bringing together more than 30 European scientific and management organisations in 13 scientific projects researching a wide range of flood risk management issues along the Rivers Rhine and Meuse. The main aim of IRMA-SPONGE is defined as: “The development of methodologies and tools to assess the impact of flood risk reduction measures and scenarios. This to support the spatial planning process in establishing alternative strategies for an optimal realisation of the hydraulic, economical and ecological functions of the Rhine and Meuse River Basins." A further important objective is to promote transboundary co-operation in flood risk management. Specific fields of interest are: • Flood risk assessment. • Efficiency of flood risk reduction measures. • Sustainable flood risk management. • Public participation in flood management issues. More detailed information on the IRMA-SPONGE Umbrella Program can be found on our website: www.irma-sponge.org. We would like to thank the authors of this report for their contribution to the program, and sincerely hope that the information presented here will help the reader to contribute to further developments in sustainable flood risk management. Ad van Os and Aljosja Hooijer (NCR Secretary and IRMA-SPONGE project manager) Report Title: STORM-Rhine Main Report – Design of the Roleplay Contact person : J.C. Heun Date : March 2002 J.C. Heun (IHE) M.M. de Groen (Resource Analysis) Author(s) : M. Werner (Delft Hydraulics) T.D. Schotanus (IHE) Development of roleplays integrated water DC Project name : management DC Project number : 06.01.06 DC Working Group Theme : Integrated water management DC Theme leaders : E. van Beek, H.H.G. Savenije Report Number : STORM report series no. 7 Number of pages : 64 Number of tables : 32 Number of figures : 21 Keverling Buismanweg 4 Postbus 69 2600 AB Delft 015-2693793 015-2693799 [email protected] www.delftcluster.nl Delft Cluster verricht lange-termijn fundamenteel strategisch onderzoek op het gebied van duurzame inrichting van deltagebieden. STORM-Rhine, Main Report - Design of the Roleplay Page i Table of Contents 1 THE STORM PROJECTS 1 1.1 Objectives of the Projects 1 1.2 Objectives of STORM 1 1.3 The STORM Products 1 1.4 Making Use of STORM 2 1.5 Roleplay Setting 2 1.6 STORM Projects Implementation 3 2 THE REPORT 5 3 SCOPE OF STORM-RHINE 7 3.1 The Concept 7 3.2 Scale of the Simulation 7 3.3 River and Floodplain Functions 8 3.4 River and Floodplain management 9 3.5 The Models 9 3.6 The Roles 10 3.7 The Interface 10 4 RIVER MANAGEMENT 11 4.1 Introduction 11 4.2 Interventions in the Main Channel 11 4.3 Interventions in the Floodplain 12 4.4 Summary 13 5 MODELS ON HYDROLOGY 15 5.1 Introduction 15 5.2 Hydrology of the Rhine basin 15 5.3 Extent of the Rhine Basin considered 16 5.4 Modelling Approach 18 5.5 Hydrological Computations 19 5.6 Hydraulic Computations 20 5.7 Morphological Computations 22 5.8 Measures 22 5.9 Hydrological Routing Computations 25 5.10 Hydraulic Computations Upstream 27 5.11 Scenarios 28 6 MODEL ON SHIPPING 31 6.1 Introduction 31 6.2 Objective 31 6.3 Assumptions 32 6.4 Input 33 6.5 Model 34 6.5.1 Relation between water depth and ship load 34 6.5.2 Frequency distribution of normative water depths 36 6.5.3 Frequency distribution of ship loads 38 6.6 Output 42 6.6.1 Introduction 42 6.6.2 Economic effects 42 6.6.3 Environmental effects 44 6.7 Discussion and synthesis 45 6.8 Information on Role 46 7 PRESENT and TARGET LAND COVER 47 7.1 Introduction 47 7.2 General 47 7.3 The Netherlands 47 STORM-Rhine, Main Report - Design of the Roleplay Page ii 7.4 North Rhine Westphalia 48 7.5 Rhineland Palatinate and hessen 49 7.6 Germany Target Distribution 50 7.7 Recommendations 51 7.8 Test of matrix approach 52 8 FLOOD DAMAGE MODULE 55 9 INSTITUTIONS 57 9.1 Water Management in Germany 57 9.2 Water Management in The Netherlands 58 9.3 Institutional Complexity of Inter-departmental Interaction 59 9.4 Comparison between German and Dutch Water Management 59 9.5 Application in the Roleplay 60 REFERENCES 63 ANNEX A MODELS on WATER LIST of TABLES Table 3.1 River and floodplain functions 8 Table 3.2 River and floodplain management measures 9 Table 3.3 Modules of the STORM-Rhine system model 9 Table 5.1 Cumulative chainage and catchment area of the Rhine ... 16 Table 5.2 Physical maximum and highest measured discharge 17 Table 5.3 Tributaries explicitly modelled 18 Table 5.4 Overview of branches considered in the model 18 Table 5.5 Geometrical properties of schematised cross sections 21 Table 5.6 Measures acting on geometry and hydraulic roughness 22 Table 5.7 Projected retention areas between Maxau and Lobith 23 Table 5.8 Projected retention downstream of Lobith 24 Table 5.9 Retention basins considered in the STORM-Rhine 24 Table 5.10 Nodes and branches of the routing model 25 Table 5.11 Comparison of observed and routed maximum discharges 27 Table 5.12 Overview of branches and approximate locations 27 Table 5.13 Estimates of climate change for the Rhine basin 29 Table 5.14 Discharges at different tributaries for selected scenarios 30 Table 5.15 Peak discharges at different locations for selected scenarios 30 Table 6.1 Representative sizes of ship classes 33 Table 6.2 Input information for changes in fleet 33 Table 6.3 Ship masses 35 Table 6.4 Number of journeys from ships from different ship classes ....... 43 Table 7.1 Translation of GIS map of NRW to ecotope distribution in STORM 48 Table 7.2 Translation of Gewässerstrukturgütekartiering of Rhineland Paptinate 50 Table 7.3 Matrix to transform current ecotope distribution to target ecotope 51 Table 8.1 Unit flood damages 55 Table 8.2 Areas and land use classes of damage 55 Table 9.1 Water resources management framework in Germany 57 Table 9.2 Water resources management framework in The Netherlands 58 Table 9.3 Water quantity management 59 Table 9.4 River, floodplains and facilities management 60 Table 9.5 Roles in STORM-Rhine 60 LIST of FIGURES Figure 3.1 Elements of a simulation game 7 Figure 3.2 Linkages between players 7 STORM-Rhine, Main Report - Design of the Roleplay Page iii Figure 3.3 Reach covered by STORM-Rhine 7 Figure 3.4 Relation between modules and system models 9 Figure 3.5 Compilation of elements from STORM-Rhine interfaces 10 Figure 4.1 Structural measures in the river and floodplain 11 Figure 5.1 The Rhine basin 16 Figure 5.2 Relation between the computational modules 19 Figure 5.3 Example of effect on discharge peaks 20 Figure 5.4 Illustration of link between hydrologic and hydraulic computations 21 Figure 5.5 Schematic cross section used in hydraulic computations 22 Figure 5.6 Structure of the hydrological routing model 25 Figure 5.7 Comparison between Muskingum routing model end SOBEK 26 Figure 6.1 Model results (Eq.