1. The climate change in the coastal zoneby
Per Sørensen, Danish Coastal Authority 1 1

2. Vi vil gerne bevare billedet af de uendeligt lange varme sorgløse dage ved vandet.
Men når det er andre værdier, der står på spil, krakelerer billedet….

3. 100 år senere. Ingen børn, men masser af sten og beton.
Vi fik andre behov, og andre muligheder for at beskytte os mod havets rasen.
Skagen

4. Coastal tension Land Sea Infrastructur
Vi har jo bare zone hvor land og vand mødes.
Stiger vandet går det vel ikke noget?
Spændingsfeltet opstår fordi mennesker og infrastruktur også er der.

5. Different risk acceptance
12/18/09
Different risk acceptance

6. Sea level rise in futures climate Storm water level Danish westcoast

7. Adaptation needs a strategy
12/18/09
National
Regional
Landowner

8. Principles of the Coastal Protection Act (DCA)
Need for coastal protection
Financial considerations
Technical and environmental quality
Preserving the coastal landscape
Natural development of the nature
Recreational use of the coastal area
Ensuring public access to the coastal area
Coastal protection
strategy 2011
Need for coastal protection
Risk of flooding
Risk of destruction of real property because of erosion of land
Means risk of destruction of buildings or infrastructure within a horizon of 25 years
Financial considerations
What needs protection must be of a certain value
The costs of establishing and maintaining the coastal protection must be balanced with the values protected
Technical and environmental quality
Coastal protection must be balanced with the need. Balance in the dimensions.
Balance in size as well as chosen method.
Preserving the coastal landscape
Include regards to the nature protection act, for dune and beach preservation lines
Visual factors – what does it look like?
Natural development of the nature
Try to obtain a natural development of the coast line.
Allow dynamic processes on the coast
Recreational use of the coastal area
It must still be possible to stay at the beach, go swimming, carry out different activities (playing…)
Ensuring public access to the coastal area
According to the nature protection act there is public access to the coast and the beaches

9. Consulting with other authorities and their strategy
The Heritage Agency of Denmark
Municipalities
The Danish Coastal Authority consult with other authorities.
Coordination of areas that are also governed by other authorities
Which acts take precedence where numerous acts has jurisdiction
Typically no superior act:
Beach protection line according to the nature protection act versus the need for coastal protection
Must be granted exemption from the beach protection line as well as permission according to the coastal protection act.
Both are needed or the coastal protection project cannot be carried out.
Theory:
Different decisions from two different authorities.
MInistry of Food, Agriculture and Firsheries
The Danish Directoratet of Fisheries
Environment Centres

10. Coastal protection strategy Hjørring municipality
12/18/09
Coastal protection strategy Hjørring municipality
Based on City Council goals for the coast nature must have room to maintain the natural conditions in coastal areas as far as possible in order to ensure a diverse coastal landscape and a varied flora and fauna.
This means that the municipality as a basis to oppose the creation of new permanent coastal protection systems beyond what is considered necessary for the protection of coastal projection by Lønstrup

11. Erosion, planlægning og levetid af infrastruktur
2040
2080
Coastal strategy Furreby ?
Year 0-20
Year 20-50
Year
Coastal protection can be done. Hard protection can be alowed where houses are endangered in year 0.
Hard protection are removed and only sand nourishment can be allowed. Herby can newer houses in year 0 still reach their lifetime.
No permit for coastal protectin because the lifetime of houses are passed.

12. How to deside when and how to adapt
12/18/09
How to deside when and how to adapt
Nessessary information must be achieveable
Objective desicion criteras must be agreed upon.
Open communication

13. Planning of erosion coasts
Bebyggelsesregulerende foranstaltninger.

14. Måske screeningsmodellen
Planning of flood proned coasts
Måske screeningsmodellen

15. Risk as decision criteria
En lille forhøjelse kan betyde stor reduktion af risikoen.

16. Socioeconomic as decision criteria
12/18/09
Socioeconomic as decision criteria
Scenario Category NV Yearly expenses in mio.kr
mio.kr
Basic scenario Expected damages
Coastal protection costs
Project scenario Expected damages
Coastal protection costs
Saved damages (benefits)
Expenses (costs)
Tax distortions ,07
Nett profit (NNV)
Nett benefit pr. public invested kr. 13
Internal rate 80%

17. How can a decision be made?
Go/No Go?