Klimanet. Philipp Staufer Marko Siekmann Johannes Pinnekamp. RWTH Aachen University

Transcription

1 Klimanet Water Sensitive Urban Design Network for sustainable development of regional water resources management confronting climate trends and extreme weather Philipp Staufer Marko Siekmann Johannes Pinnekamp

2 Contents Urban water management Ideas and processes Recommendations + conclusions supported by the Federal Ministry of Education and Research

3 Urban Water System Rain Inceneration Source Treatment Lakes/ surface waters Reservoirs Settlement industry Tanks Agriculture. Landfill Sludge treatment WWTP Infiltration Rainwater Bank filtration groundwater Water body Gujer (2002)

4 Urban water management Change of the hydrological cycle due to global warming Water shortage Extreme precipitation and floods Salinization Reduced groundwater levels low river discharge

5 Large hydrological Cycle River Rhine (B2 Scenario) Jacobs (2006)

6 Small hydrological Cycle Qualitative Impacts of Climate Change Water supply surface water ground water Urban drainage Extreme weather Shift in the water balance Combined sewage - negative; o open, + positive

7 Projection of Population greatly decreasing ( below -12) decreasing (-12 up to -7) lightly decreaing (-7 up to -2) stable (-2 up to 2) lightly increasing (2 up to 7) increasing (7 up to 12) greatly increasing (12 and more) Bertelmannstiftung (2006)

8 Change of population Northrhine-Westphalia Basins of Ruhr, Emscher and Lippe Gelsenkirchen Bochum Essen Duisburg Mülheim/Ruhr Krefeld Wuppertal Düsseldorf Mönchengladbach Dortmund Hagen Münster Hamm Bielefeld Aachen Köln Siegen unter below bis to bis 0 Bonn 0 bis 5 5 bis 10 über 10 Pinnekamp et al. 2006

9 Processes Basic Idea: Todays and future changes of urbanization facing migration and demographics in order to initiate adaptation with regard to climate change Water Sensitive Urban Design

10 Water Sensitive Urban Design Sustainable Water management Infiltration Retention Water reuse Water savings

11 Benefits Taking actions now (Stern Report) Implementation Water Framework Directive good ecological condition Synergies adapting urban design aging population extreme weather (heat and precipitation) land use development of old industrial sites sustainability No regret measures

12 Benefits Water in the city appearance micro climate cooling agent, rising evaporation recreation High wage locations today s standards flooding water quality system reliability

13 Processes Multi-disciplinary approach Urban planning and urban mobility Urban water management Water supply Social Scientists Risk awareness Core of Klimanet

14 Processes Multi-disciplinary approach Stakeholders expectations Risk awareness Best management practices etc.

15 Recommendations

16 Recommendations + conclusions Conventional concepts Everything changes but hydro-dynamics Retention and infiltration Integrated water management Only affordable to certain economical limits New Concepts Re-Engineering of Urban Planning Connecting Mobility, Urban development and Urban water management Participation processes Source control in connection with mobility and air pollution Evaporation and retention

17 Thank you for your Attention! Contact: Philipp Staufer