Karlo Vinković PMF Zagreb, Geografski odsjek

 Austria is located within 3 international river basin districts – Danube, Rhine and Elba

 The occurrence of floods is seasonally dependent

 There is a change in flood frequency due to human intervention  Due to land use, impoundments, dikes and reservoirs the flood frequency has been changed  Climate change may have severe impacts in urbanised areas and in mountainous regions

Runtime of flood peaks from Ybbs to Vienna > 54h > 45h > 38h > 32h > 16h

 From linear measures to dikes, levees, reduce the discharge capacity  From spatial measures to flood storage reservoirs

 From non-structural measures to flood warning systems, real time operation of reservoirs, preservation and increase of retention capacity

 Around 2.2 billion dollars  New dikes, river training – km  Maintainance works of dikes km  Newly flood protected area ha  Drained areas ha

 The flood protection for residential areas should be improved  The retention capacity in the basin should be enlarged  The ecological state of the riverine system should be preserved or improved  The public should be integrated in the decision making approach

 The river basin approach – basis – risk zonation map with long term objectives (risk of 100 year wave)

 No flood protection for agricultural land – instead signing policies with the insurance companies – the higher the risk, the more expensive the policy gets