1. Working group on floods 19 October 2007
European exchange circle on flood mapping
EXCIMAP
Guide of good practices

2. EXCIMAP Objectives
To overview the current practices in flood mapping in Europe
To identify the knowledge and good practices that can be shared
To write a guide of good practices on flood mapping
To give useable advice in particular for Flood Directive implementation

3. EXCIMAP Outcomes

4. EXCIMAP Report 3 writing sessions in 2006
several circulation of the Guide : June-Aug. 2007
Finalization of the Atlas of flood maps in Europe : March-Aug (Rijkswaterstaat - The Netherlands)
Final version : 2nd WG-F meeting

5. EXCIMAP Participants
Austria, Belgium (Flanders, Wallonia), Croatia, Finland, France, Germany (Saxonia, Rhinland-Palatinate), Greece, Hungary, Ireland, Latvia, Norway, Poland, Slovenia, Sweden, Switzerland, The Netherlands, UK,
CEA, EFG
FLOODSITE, TIMIS, FLAPP
ICPDR, ICPR
European Commission, JRC

6. EXCIMAP The Guide Summary 1 Context 2 Scope and content
3 Use of flood maps
4 Flood hazard maps: type and content
5 Flood risk maps
6 Flood maps: Initiatives, projects and special products
7 Production of flood maps
8 Flood map dissemination
9 Concluding remarks
10 Annex

7. EXCIMAP The Guide 3 Use of flood maps
Flood Risk Management: Strategy and planning
Land-use planning
Emergency planning and management
Public Awareness
Insurance
Overview of:
Appropriate scales
Main use of maps
How will read the maps and level of acceptable complexity
Content: essential and desirable parameters

8. 4 Flood hazard maps: type and content
EXCIMAP The Guide
4 Flood hazard maps: type and content
Sticking to EFD definition
Overview of practices for presenting flood hazard on maps in Europe
Basic information
Referring to examples gathered in the Atlas, presentation of:
Flood extent map/flood plain map
Flood depth map
Flow velocity and flood propagation map
Other types: Flood danger map,Event map

9. EXCIMAP The Guide 5 Flood risk maps Sticking to EFD definition
Overview of practices for presenting assets at risk on maps in Europe
Notion of risks and representation
Referring to examples gathered in the Atlas, presentation of:
population
Assets and economic activity
Potentially affected installations causing pollution
Other types: flood defences, flood damages

10. EXCIMAP The Guide
6 Flood maps: Initiatives, projects and special products
Overview of existing products in Europe
Transboundary flood maps: examples of initiatives, use of maps, recommendations
Interactive map systems
Other types : emergency maps, insurance maps

11. EXCIMAP The Guide 7 Production of flood maps
Overview of data and models required for maps production
Databases : topography, DEM, historical data, land use data
modelling : hydrological models, hydraulic models and particular cases (large flood plain areas, coastal flooding)
Specific examples: torrent flows, groundwater flooding, flash floods and mediterranean ephemeral water courses
Layout and GIS approaches
Organisation and documentation for production

12. 8 Flood map dissemination
EXCIMAP The Guide
8 Flood map dissemination
Depending on the final user
Focus on uncertainty issues
Concluding remarks
10 Annex
Synthesis of current practices ; preliminary questionnaire
Atlas of flood maps in Europe

13. EXCIMAP The Atlas of flood maps in Europe
The Atlas is part of the Guide
Cartographic aspects (same as in the Guide)
19 examples of national practices (flood hazard maps and flood risk maps) in European countries, USA and Japan
Plus additional specific chapters on:
transboundary flood mapping
flood maps for insurance
emergency maps

14. EXCIMAP The Atlas of flood maps in Europe
Publication
CD-ROM inserted into the Guide
Paper version
EU web site

15. EXCIMAP Follow-up First step
Endorsements: WG-F, SCG (7/11 ), WD (29-30/11)
Publication
Paper
Internet : EU web site
Dissemination
And after?
Updating?
Other chapters?
Other guides?

16. EXCIMAP Contact points
Roberto LOAT – BAFU
Frédérique Martini – MEDAD