Flood Emergency Management at Morava River

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1 Flood Emergency Management at Morava River an example for emergency management planning from Austria Albert SCHWINGSHANDL Markus VOLLMANN Consulting Engineers for Water Management and Environmental Informatics NÖ Landesregierung & Österreichisches Bundesheer Siebensterngasse 31/2 A-1070 Vienna IDRC DAVOS 2008

for Water Management and Environmental Informatics NÖ Landesregierung &

2 Contents: Study area Legal Framework of the Disaster Protection Management in Austria Flood Risk Assessment based on Hydrodynamic Modelling Modules of the Flood Emergency Plan at Morava River Conclusions and Perspectives

based on Hydrodynamic Modelling Modules of the Flood

3 Study Area Morava Border river between Austria (Lower Austria) and Slovak Republic in the length of about 70 km Total catchment area >25.000km² Landscape is dominated by low mountain range, hilly croplands and extended floodplains Hundred year flood 2006: 1.400m³/s

>25.000km² Landscape is dominated by low mountain range, hilly

4 Legal Framework of the Disaster Protection Management in Austria

5 Stuctures in disaster protection management Federal Ministry of the Interior Department II/4 Civil Privincial Defence, Government Crises and Disaster Director Protection of Operation Management Department District administration of fire brigade and National civil protection Crisis and Disaster Protection Chief Management of staff and Executive Civil Protection Staff Staff Provincial UnitsAlert S1-S7 Center Executive Staff, Liaison-Officers International Civil Protection Liaison-Officers: and Disaster Executive Relief Advisory staffs Fire Brigade, of relief group units Emergency Municipal Medical administration Authorised Services, Federal Armed Chief Forces of staff -Operation Mayor experts and Crisis Executive Staff Coordination Centre Unit II/4a Unit II/4a Federal Alert Centre Operating (BWZ) Units Multi and bilateral treaty National Crises and Emergency Management [SKKM] Civil Defense and Disaster Protection Management of the Federal States Disaster Protection Management of the Districts Disaster Protection Management of the Municipalities LOCAL REGIONAL PROVINCIAL NATIONAL

UnitsAlert S1-S7 Center Executive Staff, Liaison-Officers International Civil Protection Liaison-Officers: and Disaster Executive Relief Advisory staffs Fire Brigade, of relief group units Emergency

6 NÖ Katastrophenhilfegesetz (Emergency Relief Law of Lower Austria) Emergency management is in legal responsibility of the provinces. Emergency relief law of Lower Austria forms legal framework for emergency prevention and intervention activities: To in assure legal mind, a target a disaster oriented is a emergency natural phenomenon management, or all another event which will cause exceeding damages to municipalities and district administrations have to human lives or goods. prepare emergency management plans. emergency aid enfolds emergency and supporting measures to avoid, elliminate or to impair possible effects of a disaster to human life and goods.

oriented is a emergency natural phenomenon management, or all another event which will cause exceeding damages to municipalities and district administrations have to

7 Flood Risk Assessment based on Hydrodynamic Modelling

8 Integral Risk Management Prevention - Hazard zone mapping - Regional planning - Flood protection measures - Emergency management planning - Flood forecasting systems Regeneration - Restoration - Event analysis - Validation -Revision Intervention - Monitoring - Communication - Information - Implementation of measures - Documentation

systems Regeneration - Restoration - Event analysis - Validation -Revision

9 Benefits of 2d-Hydrodynamic Models Simulation of a multitude of different scenarios Computation network covers the entire area of interest Hazard mapping and risk assessment (h, v) Provides a basis for flood emergency plans Supports increased risk communication by means of visualisation

interest Hazard mapping and risk assessment (h, v) Provides a basis for

10 Hydrodynamic Modelling of flood events

11 Modules of the Flood Alarm Plan at Morava River

12 Basic essentials of flood emergency plans Hazard analyses - determination of possible threats Identification of weak points and definition of disaster scenarios Hazard mapping based on modeled flooded areas Planning of flood protection measures and evacuation zones based on calculated water depths and flow velocities Definition of warning and alert threshold Preparation of communication channels

flooded areas Planning of flood protection measures and evacuation zones based on calculated water

13 Visualisation Hydrodynamic Modelling Time Series Workflow DKM Flood ÖK50 OF Object Table GIS Results Evacuation Zones Thematic Layers Channels Land Use Hydrography ÖK50 DTM Orthofoto

14 Documents: Hazard Analyses Modules Duties and Responsibilities Warning and Alert Thresholds Communication Channels Catalogue of of Measures Maps: Dyke Protection Plan Hazard Zones Plan of Measures for Flood Defence Flood Protection Barriers Evacuation Plan

of of Measures Maps: Dyke Protection Plan Hazard Zones Plan of

15 Warning and Alerting Bilateral treaties - early warning Kromeriz Olomouc Czech Republic (Ceský hydrometeorologický ústav Brno) Slovak Republic Czech Republic Warning and Alarm Center Novè Mlýny Dyie Straznice Bernhardsthal Hohenau Moravsky Sväty Jan Lower Austria Angern Morava Slovak Republic Marchegg Danube

Republic Warning and Alarm Center Novè Mlýny Dyie Straznice Bernhardsthal

16 Warning and Alerting Bilateral treaties - early warning Kromeriz Olomouc Command ZAMG of the district fire brigade Hydrogr. Police Service station Water board Czech Republic (Ceský hydrometeorologický ústav Brno) Austrian federal railways Federal armed forces Aid emergency services and others Warning and Alarm Center District Administration Flood Warning/ Flood Alert Slovak Republic viadonau Novè Mlýny Lower Austria Czech Republic Angern Dyie Bernhardsthal Morava Marchegg Straznice Hohenau Moravsky Sväty Jan Slovak Republic Danube

forces Aid emergency services and others Warning and Alarm Center District Administration Flood Warning/ Flood Alert Slovak Republic

17 Catalog of Measures Water Level Current State Alert Phase Person in Charge Measures Implementation Organisation

18 Hazard Zone Mapping Evacuation zones A, B, C A Locations with increased risk (fuel oil, pesticides, chem. fertiliser ) C B Different kinds of flood protection measures barriers Sewer manholes

19 ZONE A ZONE B ZONE C Evacuation plans spatial data of Evacuation plans: plot numbers Areas with high risk potential number danger of of entombment: inhabitants Water depths > 1m, no adequat supply (pure water, handicapped persons electricity ) possible, no strategic flood defence measures purposeful. loss potential kind of heater system Areas with mean risk potential : Water depths between 0.5 to 1m, adequat public supply industrial (pure water, plants electricity ) can be affected, massiv farm flood animals defense measures are purposeful. harmful substances Areas with moderate risk potential. : Water depths between 0.1 to 0.5 m, basements and low lying parts of buildings can be affected, self protection measures are useful.

loss potential kind of heater system Areas with mean risk potential : Water depths between 0.

20 Kinds of barriers for flood defense Mobile flood protection elements Sandbag barrages Combined barriers Self protection measures

21 Conclusions and Perspectives

22 Conclusions Emergency management plans can significantly benefit from outcomes of state of the art numerical modelling and GIS tools. Modelling results of hazard scenarios like dyke breaks or dyke overspill-scenarios represent a valuable tool for the analyses of dynamic processes during floods. Important basis for risk assessment Quality has to be measured by the acceptance feedback by the local authorities and especially the fire brigades Periodic instructions and exercises in using the plan are necessary to increase efficiency of emergency aid

23 Perspectives HORA - Hochwasserrisikozonierung-Austria (since 2006) - Free Internet platform for estimation of potential flood risk (ehora) - Up to river kilometers available medium accurateness Discharge analyses of rivers in Lower Austria Hydrodyn. modelling of about river kilometers in Lower Austria - Visualisation of flooded areas, water depths, flow- directions and velocities of characteristic discharges - Excellent database for elaboration of flood emergency plans - Concurrent elaboration of flood alarm plans ca river kilometers in Lower Austria (costs: ca. 3 million ) - Involvement of municipalities in planning and funding

24 Perspectives Implementation of Emergency management plans to Web-GIS based Information- and Alert- Systems - Realtime visualisation of relevant data - Interoperable space-oriented communication infrastructures (mobile clients, digital radio) - Mapping and visualisation of spatial data to interactive maps - Integration of sensor data and flood forecasts - Web-based configurable clients A. ZIPF

25 Credits Thanks for your Attention! co-financed from Means of the European Fund of Regional Development EU Projekt MONITOR INTERREG IIIb CADSES

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