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Federal Department of the Environment,Transport, Energy and Communications DETEC
Federal Office for the Environment FOEN
Towards a Swiss Flood Information System
2nd expert meeting on hazard/disaster data
EU Flood information May 19th 2011
Division
2 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
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 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Responsibilities for flood control in Switzerland
Federal Government Cantonal authorities Municipalities
Legislative authority
Material frameworkSupervision
Responsibilities for flood protection structures, emergency
planning and emergency organization
Execution
Subsidies
4 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Needs („Information detail“)
Local / regional level
National level
International level
5 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
inventory of events StorMe
Process, date and time, area affected, damage
inventory of events StorMe
Process, date and time, area affected, damage
Register of protective structures ProtectMe
kind, type, dimension, year of erection, location, costs, state, maintenance need for renewal, overview security infrastructure
Register of protective structures ProtectMe
kind, type, dimension, year of erection, location, costs, state, maintenance need for renewal, overview security infrastructure
Hazard index map
process, pot. area affected for extreme event
Hazard index map
process, pot. area affected for extreme event
Hazard Map / Magnitude Map
process, probability, magnitude, area affected, techn. report
Hazard Map / Magnitude Map
process, probability, magnitude, area affected, techn. report
further fundamental data
AquaProtect, SilvaProtect, river cross sections, …
further fundamental data
AquaProtect, SilvaProtect, river cross sections, …
concepts and measures
planning, biological, technical, organisational
concepts and measures
planning, biological, technical, organisational
damage potential• object categories, standard values• single objects, insurance value
damage potential• object categories, standard values• single objects, insurance value
dealing with residual risk
emergency planning, warning , alerting, intervention, insurance
dealing with residual risk
emergency planning, warning , alerting, intervention, insurance
land use
• “Arealstatistik”, population poll• land use plans
land use
• “Arealstatistik”, population poll• land use plans
risk
• standardised (EconoMe)• detailed (MobiGIS)
risk
• standardised (EconoMe)• detailed (MobiGIS)
local level
Integral information system about natural hazards – Local level
6 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Information System on Natural Hazards
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
• …
commune
canton
federation
local
national
• is my house endangered? → private people, economy, insurance, …
7 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
• Indicators FOEN
• Controlling
• Umweltbeobachtung NUS
• Geodaten CH
Time (development)
Information system on natural hazards
national
• EEA
• WISE
• …
international
8 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Relation to other activities
Environmental survey netSwitzerland (NUS)
FOEN
Handling strategyNatural hazard
(FOEN)
Geoinformation act /Public information act
Harmonization and access to geoinformation
Protection of persons, goods and environment against natural hazards
Overview on the environmental state for political and/or strategic decisions
9 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Available informations and existing data base
Structure plan
Land planning
Land use planBuilding regulations
Processes
Other data
Cadastral survey. Infoslide
QPA GEWISS
Hazards and Risks
Hazard index map
AquaProtectSilvaProtect
Intensity map
Events
Event registerStorMe
WSL-Stormdamage data base
WSL historicaldata base
Pfister histor. flood data base
SLF Avalanchedata base
VAW Glacier inventory
UNIZH GlacierHazards
„Administration“ / Finance / Maintenance
ShowMe
FLIPSUBAL
ProtectMe
State of hazard mapping
Register of protection work
Emergency management
NEMIS GIN Basic informationTopographie Aerial view
Population data
Land use
…
Permafrost:PERMAKART
EarthquakeGeologie
Protection deficit map
Protection goal mapHazard map
Vulnerability
10 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
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
11 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Integration of many other existing data bases
floods, landslides,rock falls in Switzerlandbased on media articles(WSL)
floods„Röthlisberger“(WSL)Euro-ClimHist:
histor. natural disasters(Pfister)
damage causingavalanches (SLF)
GlacierHazards (Uni ZH)
SBB, ASTRA …
permafrost-relatedrock falls(PERMOS)
past natural events inventoryStorMe (old)
damage data(insurance, others)
others …
Inventorydangerousglaciers(VAW)
12 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
observations per year(7 cantons no entries)
process
year avalanche rock fallflood/
debris flow landslide total
1998 272 41 311 386 1010
1999 563 60 196 186 1005
2000 558 229 604 406 1797
2001 31 167 216 169 583
2002 329 254 805 576 1964
2003 497 216 900 1214 2827
2004 235 284 1291 578 2388
2005 548 228 913 897 2586
2006 197 237 1113 1762 3309
2007 139 323 1320 854 2636
2008 126 181 538 319 1164
total 3495 2220 8207 7347 21269
13 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
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 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Concept of StorMe
only simple export functionsno GIS-functionalitiesno web-interface
Data Owner: Cantons
Coordination: FOEN
survey forms2 x/y coordinate pairsno polygons
cantonal experts
cantonal experts
FOEN &research institutes
only read
consultant companies(with mandate)
15 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
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
16 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Annual expenditure for security
Confederation16%
Cantons11%
Municipalities14%
Premium for private
insurances59%
640 mio € per year for security investments
140 mio. € We are forced to apply a method of priorization
…
17 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Investment Maintenance Finance
Canton budget for flood protection investments
Canton project planification for floodprotection investments
Data base on federal subsidies for flood protection
Federal budget for flood protection investments
PlausibilityFluctuation
yearlycensus
18 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
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
19 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Hazard and risk assessment
1
2
4
Hazard identification: "What can happen and where?“
• register of events• geomorphologic analysis
Hazard assessment: "How often and how intensively can it
happen?" • hazard maps
Planning of measures: "How can we protect ourselves?"
• spatial planning• structural measures• emergency planning
3 Risk assessment: “What is the potential loss?"
• risk maps
20 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
... different information requirementsStakeholders Scale Hazard maps Risk maps
Politics
> 1:2
5’000
Hazard index maps
• Type of danger• area concerned • 1/1000 yr event• covering all the territory
• number of persons affected• global risk• basis for policy dialogue
Regional land use planning
• Identification of conflicts with settlements and infrastructure
Reinsurance • maximum damage costs
Local land use planning
1: 2
000
– 1: 1
0’0
00
Detailed hazard maps
• flood extent • flood depth • flow velocity • (propagation time)• probabilities 1/1000 yr, 1/100 yr, 1/20 yr
Technical measures
• assets at risk / protection objectives• priority setting for measures• cost / benefit evaluation
Emergency planning
• endangered persons and infrastructure• high risks
Insurance • potential loss € / ha
Population
21 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Different maps for different users
22 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Hazard Assessment precision
flood zones Aquaprotect
hazard index map
hazard map (until 2011complete overview in CH)
reality
out o
f foc
us
23 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Hazard Maps GIS Portal Zurich
24 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Hazard Maps ShowMe
25 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Aquaprotect public illustration < 1 : 50‘000
26 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Aquaprotect for Experts
return period 50 yearsreturn period 100 yearsreturn period 250 yearsreturn period 500 years
27 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
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
28 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Aquaprotect Damage Potential per Canton
29 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Different stakeholders ... different needs
• Politician (politics)
• Spatial planner (land use planning)
• Flood engineer (technical measures)
• Civil protection (emergency planning)
• Insurer (insurance)
• Person affected (self-protection)
Who needs what?
30 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
... different scales
• International level (information, cooperation)
• National level (policies, strategies)
• Regional level (coordination, priorities)
• Local level (implementation)
At which scale?
31 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Requirements FOEN /
Data of national interest
Data needs of other stakeholders
Different needs
32 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Modular database construction for different needs
«Compulsory»
«Optimal»
«Minimal»
33 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
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
34 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Schedule
Hazar mapping
Event register
2008/09 Data modelling2010 Implementation of data base2011 Data transfer
1st phase
Vulnerability
Protection work
2009/10 Data modelling2011 Implementation of data base2012 Data tranfer
2nd phase
Hazard map
Hazard index map
Intensity map
Protection goal map
Protection deficit map
Emergency map
…
Redesign von StorMe:Content / GIS-Functions/ …
Vulnerability
Protection work
Event register
Hazardmapping
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1
Time
Eff
ort
35 Expert meeting on flood data| Brussels, May19th 2011O. Overney Switzerland
Thank you for your attention !