17th EUROPEAN SEMINAR ON GEOGRAPHY OF WATER Working group: Flooding and flood water mitigation
EVENT
RESPONSE
RECOVERY
MITIGATION/ PLANNING
WARNING
Hazard Cycle for floods in the Polesine Area
Panka Babukova, Elisabeth Magyar, Kristyna Falatkova, Katerina Marouskova, Teresa Heidemann, Valentin Kostatin, Morten Jõgi, Thomas Büche, Stefan Weinberger, Jose Luis Mellado Blanco, Rain Kärner,
Event DescriptionConditions in most natural areas:• Flood lasts as long as runoff in river is increased
Conditions in most areas with flood protection (burst of embankments):• Flood lasts longer than runoff in river is increased
(delayed backflow)
17th EUROPEAN SEMINAR ON GEOGRAPHY OF WATER Working group: Flooding and flood water mitigation
Conditions in Po-Delta:• Rivers are supra-elevated• Area lies below the sea-level
Water can not discharge to the sea
True for:• Precipitation • Increased runoff in river (branches of Po)• Burst of embankments
Sea level
Data: S. Piovan
17th EUROPEAN SEMINAR ON GEOGRAPHY OF WATER Working group: Flooding and flood water mitigation
17th EUROPEAN SEMINAR ON GEOGRAPHY OF WATER Working group: Flooding and flood water mitigation
Municipalities that suffered major damages from the October November 2000 floods‐
Response and Recovery of the floods of 2000 in Po river basin in Northwest of Italy
17th EUROPEAN SEMINAR ON GEOGRAPHY OF WATER Working group: Flooding and flood water mitigation
Flooding of 2000 - Response and recovery
• Data best-fit and comparable for possible floodings.
• Initial response to (attempt to) restore basic living conditions, to clean the debris, to secure the hydrological structure
17th EUROPEAN SEMINAR ON GEOGRAPHY OF WATER Working group: Flooding and flood water mitigation
• Railway recovery near Turin – more than 2 years
• Temporary isolation of smaller towns in the area
• Hydropower plant recovery 6 months
• Water supply interuptions for a week
Flooding of 2000 - Response and recovery
Main problems of flood risk management
Po delta:• Lack of management on a river basin level• Poor communication and coordination between
water management institutions
• Expensive flood protection (pumping stations, maintenance of embankments)
• Bad condition of ditches – private owners, no regulations, neglected
• Warning system – not working effectively• Low level of public awareness about flood risk
Padova:• Canal network - bad condition of the canals
(vegetation, age)regulation of discharge sluices
Matti
a Amadio
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Panka Babukova
17th EUROPEAN SEMINAR ON GEOGRAPHY OF WATER Working group: Flooding and flood water mitigation
Technical flood risk mitigation measures
• Increase retention capacity – emergency reservoirs, collector of rainwater
• Reopening the canals and maintenance of the dykes and ditches
• Individual protection for the houses – mobile walls, building specifications
• (roof retention capacity, basement regulation, elevated first floor)
• Land architecture protection measures
17th EUROPEAN SEMINAR ON GEOGRAPHY OF WATER Working group: Flooding and flood water mitigation
Non-technical flood risk mitigation measures
• Flood risk management on a basin level (according to the EU Water Framework Directive and Floods Directive)
• Creation of dialog between institutions and distribution of responsibilities within the basin
• Use existing research
• Integration of existing flood hazard and risk maps in spatial planning regulations, insurance and for public
• Improvement of the early warning systems
• Raise public awareness and involvement
Matti
a Amadio
Matti
a Amadio
Panka Babukova17th EUROPEAN SEMINAR ON GEOGRAPHY OF WATER Working group: Flooding and flood water mitigation
Po Delta is a complex territory, resulting from the interaction of human societies and a changing environment.
“Natural hazard” or “territorial risk” ?
Technical representations of natural hazard, based on calculations (modeling) of flood level, cannot completely explain a complex risky territorial context: vulnerability is increased by human behavior,
linked to cultural, social and historical factors
Awareness of territorial peculiarities as a pre-condition for the creation of a culture of risk
Reclaimed lands Trust in human ability to control and “organize” nature
17th EUROPEAN SEMINAR ON GEOGRAPHY OF WATER Working group: Flooding and flood water mitigation
Thank you for your attention!