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Integrated Flood Management : the way to Harmonious coexistence with floods. Avinash C Tyagi World Meteorological Organisation Geneve, Switzerland A contribution to Question 53 International Commission on Irrigation and Drainage 19th Congress, 15-18 September 2005, Beijing.
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Integrated Flood Management : the way to Harmonious coexistence with floods Avinash C Tyagi World Meteorological Organisation Geneve, Switzerland A contribution to Question 53 International Commission on Irrigation and Drainage 19th Congress, 15-18 September 2005, Beijing
Shortcomings of past FM Practise • Ad-hoc and stand alone • Reactive rather than proactive • Emphasis on structural measures • Monodisciplinary • Lessons from past failure
why a new approach? Increasing Flood Risks • Population increase: Exposure • Economic Development: Vulnerability • Climate Variability: Hazard Frequency • Upstream Urbanisation: Hazard Magnitude Absolute safety against floods is a myth Climate change uncertainity Growing environmental concerns IWRM approach
FLOOD RISK Exposure Flood magnitude and frequency RISK Vulnerability
GLOBAL POPULATION 1960 - 2050 1960 1970 1980 1990 2000 2010 2020 2030 2040 2050 Year 14 Highvariant 12 Mediumvariant 10 8 Lowvariant Billions 6 4 2 Ref: UN
Rainwater infiltrates into the ground Runoff increases
Integrated Flood Management: Objectives • Sustainable development: balancing development needs and flood risks • Maximising benefits: ensure livelihood security and poverty alleviation thereby reducing vulnerability • Minimising loss of life • Environmental preservation
IFM: PRINCIPLES Risk Management • Mitigation and Preparedness • Response • Recovery and rehabilitation
IFM: PRINCIPLES Water Cycle as a whole • Flood and drought management • Effective use of flood waters • Ground water and surface water interaction in flood plains
IFM: PRINCIPLES Multi-hazard approach • Cross-sectoral integration of disaster management strategies • Disaster risk assessment • Early warning and forecasts
IFM: PRINCIPLES River Basin approach
IFM: PRINCIPLES Public Participation • Stakeholders participation in decision making • Coordination between institutions • Building resilience in the community • Addressing Gender based requirements • Exchange of data and information
IFM: PRINCIPLES Public Participation Flood Information System consisting of • monitoring base: indicators; information systems; early warning threshold • knowledge base: technical data; social and economic data; land and water uses; risk knowledge • relational base: who’s who; contacts and coordinates; allocation of duties; • dialogue base: data exchange protocols; notification protocols; communication channels; rules and language; • conflict-resolution base: negotiation processes (location, timing, authority chosen for trade-off; compensation options, etc.)
IFM: Towards a holistic flood management • Integration of • Land and Water Management • Upstream and Downstream • Structural and Non-structural • Short term and Long-term • Local and basin level measures • Top down and Bottom up decision making • Development needs and economic concerns
Requirements of IFM Clear and objective policies with a multidisciplinary approach supported with appropriate • Legislation and regulations; • Institutional structures with appropriate linkages; • Economic instruments; • Enabling participatory processes; and • Information management and exchange mechanisms.
Associated Programme for Flood Management • Establish the principles of IFM • Help assimilate principles of IFM within IWRM; • Identify gaps in present flood management practices and IFM • Support actions at local, national, regional or river basin level • Provide a platform for a common strategic vision, • Promote the implementation of effective policies and strategies; • Provide advice and relevant information on flood management issues; • Develop capacities in the countries to integrate flood management into sustainable development processes; and