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Concepts and Science for Coastal Erosion Management Guidelines for implementation of coastal erosion management at national, regional and local levels.

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Presentation on theme: "Concepts and Science for Coastal Erosion Management Guidelines for implementation of coastal erosion management at national, regional and local levels."— Presentation transcript:

1 Concepts and Science for Coastal Erosion Management Guidelines for implementation of coastal erosion management at national, regional and local levels Jan Mulder Saskia Hommes Deltares / University of Twente (Netherlands)

2 Concepts and Science for Coastal Erosion Management Guidelines for implementation of coastal erosion management at national, regional and local levels

3 Concepts and Science for Coastal Erosion Management Guidelines for implementation of coastal erosion management at national, regional and local levels

4 Concepts and Science for Coastal Erosion Management Guidelines for implementation of coastal erosion management at national, regional and local levels

5 Concepts and Science for Coastal Erosion Management Guidelines for implementation of coastal erosion management at national, regional and local levels

6 Concepts and Science for Coastal Erosion Management Guidelines for implementation of coastal erosion management at national, regional and local levels large diversity, both at physical - and at policy- and management levels

7 Concepts and Science for Coastal Erosion Management Guidelines for implementation of coastal erosion management at national, regional and local levels a systematic approach : Frame of Reference

8 Concepts and Science for Coastal Erosion Management a systematic approach :question loop

9 Concepts and Science for Coastal Erosion Management a systematic approach : question loop Make problems, choices and responsibilities explicit ! Lovely ocean, I must say.. It is just the coast line that worries me ….

10 Concepts and Science for Coastal Erosion Management WHAT is achieved ? HOW can it be tackled ? WHAT is the problem ? a systematic approach :question loop

11 Concepts and Science for Coastal Erosion Management a systematic approach :question loop What is the problem ? WHY is it a problem? functions ? regulations ? policy goals ? physical causes ? WHO is concerned ? interests ? power ? responsibility ? finances ? WHAT should be achieved ? Set objectives WHO is responsible ? Specify examples: preserve dune strength maintain beach configuration reduce coastal erosion prevent damage to infrastructure

12 Concepts and Science for Coastal Erosion Management a systematic approach :question loop How big is it ? What is the problem ? WHAT measurable indicator(s) describe the objectives? What time- and space scales are involved ? What data are available ? What monitoring is needed ? What modelling is applicable ? WHO is responsible ? Decision making process barrier width dune heigth beach width shore line position shoreface volume coastal cell volume etc.

13 Concepts and Science for Coastal Erosion Management a systematic approach :question loop How big is it ? What is the problem ? Action needed ; yes / no? WHERE and WHEN do the indicator(s) reach a critical value ? Benchmarking ! What data are available ? What monitoring is needed ? What modelling is applicable ? WHO is responsible ? definition of desired state favourable sediment status

14 Concepts and Science for Coastal Erosion Management a systematic approach :question loop How big is it ? What is the problem ? Action needed ; yes / no? What intervention is applicable ? HOW to restore or maintain the desired state of the indicator(s) ? Choice of intervention method WHO is responsible ? organization of erosion management finances strategic sediment reservoir

15 Concepts and Science for Coastal Erosion Management a systematic approach :question loop How big is it ? Action needed ; yes / no? Does it work out ? What is the problem ? What intervention is applicable ? WHAT is achieved by the intervention method ? evaluation of effects WHO is responsible ? decision making process

16 Concepts and Science for Coastal Erosion Management How big is it ? Action needed ; yes / no? Does it work out ? What is the problem ? What intervention is applicable ?

17 Concepts and Science for Coastal Erosion Management HomeHome / Guidelines / HOW TO DO IT ? / decision loopGuidelines COASTAL EROSION > what is it ? > when is it a problem ? WHAT CAN BE DONE ? > key concepts > framework for coastal erosion management > turning data into information > potential interventions > set back lines > use of models > EU policies and directives HOW TO DO IT ? > systematic approach > decision loop LINKS > relevant weblinks

18 Concepts and Science for Coastal Erosion Management a systematic approach : question loop Make problems, choices and responsibilities explicit ! Lovely ocean, I must say.. It is just the coast line that worries me …. What the **** do you mean ?

19 Concepts and Science for Coastal Erosion Management Thank you

20 Concepts and Science for Coastal Erosion Management

21 Concepts and Science for Coastal Erosion Management


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