1. Norwegian Water Resources and Energy Directorate (NVE)
Monica Bakkan
Department for Landslides, Flood and River Management

2. Flood Inundation Maps Including a future climate

3. Produced Flood Inundation Maps since 1998.

4. Future climate influence
Floods
Sea level rise
Landslides

5. Strategy Flood mapping and Land Use Planning
> 20 % increase of a year flood during the next 100 years

6. Research
”Hydrological projections for floods in Norway under a future climate”

7. Analyses
115 catchments
200-year and 1000-year flood
Periodes; and

8. Projected change Guidance has been developed using 3 categories: 0 %
20 %
40 %
200-year flood in

9. Conclusion
Inland catchments dominated by spring/early summer snowmelt floods in today’s climate (0 % increase)
Coastal locations and local source areas (20 % increase)
Catchments < 100 km (20 % increase)

10. Implementation on Flood Maps
Implementation of 200-year in 2100
Until to day -> 2 projects

11. Excample from Naustdal municipality on the Western coast
Overview, The catchment
20 % increase

15. Further works
Uncertainty?
Consequences?
Historical vs. future data
Restrictions
Final version?.

16. Thank you for your attention!