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Sustainability Aspects of Flood Risk Management - Interrelations and Challanges

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Sustainability Aspects of Flood Risk Management - Interrelations and Challanges

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Sustainability Aspects of Flood Risk Management - Interrelations and Challanges

  1. 1. Sustainability aspects of flood risk management - interrelations and challanges Lars Nyberg 1 , Mariele Evers 1,2 , Yvonne Andersson-Sköld 3 , Magnus Johansson 1,4 and Barbara Blumenthal 1 1 Centre for Climate and Safety, Karlstad University 2 Leuphana University, Lüneburg 3 Swedish Geotechnical Institute 4 Swedish Civil Contingencies Agency
  2. 2. Centre for Climate and Safety
  3. 3. <ul><li>50,200 km 2 catchment </li></ul><ul><li>Lake area 5,600 km 2 </li></ul><ul><li>Flood risk in the lake and most tributaries </li></ul><ul><li>Flood 2000/2001 </li></ul><ul><li>Landslide risks along Göta älv and Klarälven </li></ul><ul><li>Hydropower dams </li></ul><ul><li>Heavy industry/Polluted soil </li></ul><ul><li>Drinking water supply </li></ul>Lake Vänern Centre for Climate and Safety
  4. 4. Elbe River <ul><li>148,000 km 2 catchment </li></ul><ul><li>Biosphere reserve 3,740 km 2 </li></ul><ul><li>Big floods 2002, 2005, 2006 </li></ul><ul><li>Several large cities affected </li></ul><ul><li>Flood protection: dikes etc </li></ul><ul><li>Former border areas - Large ecological values </li></ul><ul><li>Floodplain used for recreation and tourism </li></ul>Centre for Climate and Safety
  5. 5. Components of Flood risk management Risk analysis Probability Hazard Consequences Vulnerability Risk evalua-tion Risk reducing meas-ures Centre for Climate and Safety
  6. 6. <ul><li>Hazards </li></ul><ul><li>Relation to land-use, urban planning, etc </li></ul><ul><li>Climate change </li></ul><ul><li>Vulnerabilities </li></ul><ul><li>Include social, ecological and economic vulnerabilties </li></ul><ul><li>Risk evaluation </li></ul><ul><li>Weighing of different vulnerabilities and values </li></ul><ul><li>Risk-reducing measures </li></ul><ul><li>Sustainability assessment of measures </li></ul>Centre for Climate and Safety
  7. 7. Important feedback Risk analysis Probability Hazard Consequences Vulnerability Risk evalua-tion Risk reducing meas-ures Centre for Climate and Safety
  8. 8. Assessment of measures (Andersson-Sköld et al. 2010)
  9. 9. Concluding remarks <ul><li>Sometimes obvious conflicts between risk reduction and social and ecological values </li></ul><ul><li>A broad perspective on FRM is needed to address these conflicts </li></ul><ul><li>FRM measures can be assessed in a sustainability frame </li></ul><ul><li>A future generation perspective calls for long-term sustainable structures </li></ul>Centre for Climate and Safety
  10. 10. <ul><li>Thank you for your attention! </li></ul><ul><li>[email_address] </li></ul><ul><li>www.kau.se/ccs </li></ul>Centre for Climate and Safety

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