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Towards a Swiss Flood Information System

Division. Towards a Swiss Flood Information System. 2 nd expert meeting on hazard/disaster data EU Flood information May 19th 2011. Topics. Flood prevention in Switzerland Databases on floods Past flood events Flood protection investments Hazard maps Register of protection works

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Towards a Swiss Flood Information System

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  1. Division Towards a Swiss Flood Information System 2nd expert meeting on hazard/disaster data EU Flood information May 19th 2011

  2. Topics • Flood prevention in Switzerland • Databases on floods • Past flood events • Flood protection investments • Hazard maps • Register of protection works • Use and implication for flood prevention policies • Perspectives

  3. Subsidies Responsibilities for flood control in Switzerland Federal Government Cantonal authorities Municipalities Legislative authority Responsibilities for flood protection structures, emergency planning and emergency organization Material framework Supervision Execution

  4. Needs („Information detail“) International level National level Local / regional level

  5. Integral information system about natural hazards – Local level • land use • “Arealstatistik”, population poll • land use plans Register of protective structures ProtectMe kind, type, dimension, year of erection, location, costs, state, maintenance need for renewal, overview security infrastructure • damage potential • object categories, standard values • single objects, insurance value inventory of events StorMe Process, date and time, area affected, damage • risk • standardised (EconoMe) • detailed (MobiGIS) Hazard index map process, pot. area affected for extreme event local level concepts and measures planning, biological, technical, organisational Hazard Map / Magnitude Map process, probability, magnitude, area affected, techn. report further fundamental data AquaProtect, SilvaProtect, river cross sections, … dealing with residual risk emergency planning, warning , alerting, intervention, insurance

  6. Information System on Natural Hazards national Data of national interest evaluations, data aggregation, analyses, overlay with further data, … • where are the largest risks? → administration, insurance • what is the state of the safety infrastructure? → politicians • … federation local canton commune • is my house endangered? → private people, economy, insurance, …

  7. Time (development) Information system on natural hazards • EEA • WISE • … international national • Indicators FOEN • Controlling • Umweltbeobachtung NUS • Geodaten CH

  8. Relation to other activities Environmental survey net Switzerland (NUS) FOEN Geoinformation act / Public information act Overview on the environmental state for political and/or strategic decisions Harmonization and access to geoinformation Handling strategy Natural hazard (FOEN) Protection of persons, goods and environment against natural hazards

  9. Land planning Structure plan Other data Building regulations SUBAL FLIP Land use plan Cadastral survey. Infoslide ProtectMe QPA GEWISS Available informations and existing data base Events Hazards and Risks Event register StorMe SilvaProtect AquaProtect Processes WSL-Stormdamage data base Hazard index map SLF Avalanche data base Permafrost:PERMAKART Vulnerability WSL historicaldata base Pfister histor. flood data base Earthquake Hazard map Geologie Protection goal map VAW Glacier inventory UNIZH GlacierHazards Intensity map Protection deficit map Emergency management Basic information NEMIS GIN Topographie Aerial view Land use „Administration“ / Finance / Maintenance Population data … ShowMe State of hazard mapping Register of protection work

  10. Topics • Floodprevention in Switzerland • Databases on floods • Pastfloodevents • Floodprotectioninvestments • Hazardmaps • Register ofprotectionworks • Useandimplicationforfloodpreventionpolicies • Perspectives

  11. Integration of many other existing data bases damage causingavalanches (SLF) Inventory dangerous glaciers (VAW) GlacierHazards (Uni ZH) past natural events inventory StorMe (old) floods, landslides,rock falls in Switzerlandbased on media articles(WSL) permafrost- related rock falls (PERMOS) floods „Röthlisberger“ (WSL) SBB, ASTRA … Euro-ClimHist: histor. natural disasters (Pfister) others … damage data (insurance, others)

  12. observations per year(7 cantons no entries)

  13. What is StorMe used for? • standardized documentation of past events • Hazard mapping(retrospective: potential endangered areas; frequency of events) • Model validation • Proof of potential danger • Awareness of population (risk communication) • controlling of effectiveness (hazard maps, planning technical, organisational measures) • emergency planning

  14. only simple export functions no GIS-functionalities no web-interface Concept of StorMe Data Owner: Cantons Coordination: FOEN cantonal experts consultant companies(with mandate) only read survey forms 2 x/y coordinate pairs no polygons FOEN &research institutes cantonal experts

  15. Topics • Floodprevention in Switzerland • Databases on floods • Pastfloodevents • Floodprotectioninvestments • Hazardmaps • Register ofprotectionworks • Useandimplicationforfloodpreventionpolicies • Perspectives

  16. Annual expenditure for security  640 mio € per yearfor security investments We are forced to apply a method of priorization … 140 mio. €

  17. Investment Maintenance Finance Data base on federal subsidies for flood protection Canton budget for flood protection investments Plausibility Fluctuation yearly census Canton project planification for flood protection investments Federal budget for flood protection investments

  18. Topics • Floodprevention in Switzerland • Databases on floods • Pastfloodevents • Floodprotectioninvestments • Hazardmaps • Register ofprotectionworks • Useandimplicationforfloodpreventionpolicies • Perspectives

  19. Hazard and risk assessment 1 • Hazard identification: • "What can happen and where?“ • register of events • geomorphologic analysis 2 • Hazard assessment: • "How often and how intensively can it happen?" • hazard maps 3 • Risk assessment: • “What is the potential loss?" • risk maps • Planning of measures: • "How can we protect ourselves?" • spatial planning • structural measures • emergency planning 4

  20. ... different information requirements

  21. Different maps for different users

  22. Hazard Assessment  precision flood zones Aquaprotect hazard index map hazard map (until 2011 complete overview in CH) reality out of focus

  23. Hazard Maps  GIS Portal Zurich

  24. Hazard Maps  ShowMe

  25. Aquaprotect  public illustration < 1 : 50‘000

  26. Aquaprotect  for Experts return period 50 years return period 100 years return period 250 years return period 500 years

  27. Topics • Floodprevention in Switzerland • Databases on floods • Pastfloodevents • Floodprotectioninvestments • Hazardmaps • Register ofprotectionworks • Useandimplicationforfloodpreventionpolicies • Perspectives

  28. Aquaprotect Damage Potential per Canton

  29. Different stakeholders ... different needs Who needs what? • Politician (politics) • Spatial planner (land use planning) • Flood engineer (technical measures) • Civil protection (emergency planning) • Insurer (insurance) • Person affected (self-protection)

  30. ... different scales At which scale? • International level (information, cooperation) • National level (policies, strategies) • Regional level (coordination, priorities) • Local level (implementation)

  31. Requirements FOEN / Data of national interest Data needs of other stakeholders Different needs

  32. «Compulsory» «Minimal» «Optimal» Modular database construction for different needs

  33. Topics • Floodprevention in Switzerland • Databases on floods • Pastfloodevents • Floodprotectioninvestments • Hazardmaps • Register ofprotectionworks • Useandimplicationforfloodpreventionpolicies • Perspectives

  34. 1st phase Hazar mapping Event register 2008/09 Data modelling 2010 Implementation of data base 2011 Data transfer 2nd phase Vulnerability 100% Hazard 90% mapping 80% 70% Event register 60% Protection work Effort 50% 40% Protection work 30% 20% Vulnerability 10% 2009/10 Data modelling 2011 Implementation of data base 2012 Data tranfer 0% 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1 Time Hazard map Schedule Hazard index map Intensity map Protection goal map Protection deficit map Emergency map … Redesign von StorMe: Content / GIS-Functions/ …

  35. Thank you for your attention !

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