1. Making Space for Water Risk Mapping: Coastal Erosion
Project Update
Southeast Strategic Regional Coastal Monitoring Programme
Friday 19th October 2007
Geoff Astle
Senior Project Manager
Environment Agency

2. Making Space for Water Programme/Project Brief
MSfW Programme Brief:
“To provide greater clarity for both the public and those involved in flood and coastal erosion risk management”
Project Brief:
“…we will identify appropriate means to develop our coverage in order to model and map the risks from coastal erosion…”
“…identify appropriate means of making this information publicly available. ”

3. Coastal Erosion (HA4b) Project Objectives
Map the coastline susceptible to erosion and instability from natural processes
Predict future coastline positions based on existing defences and management practices
Consider ways in which both hazard and risk associated with coastal erosion can be generated for England
Look at ways in which this can be graphically illustrated through mapping
Develop processes to support implementation of the above
Contribute to wider review of policy, regulation, organisation responsibility and communications strategy

4. Risk Mapping: Coastal Erosion (HA4b) Project Scope
England and Wales
The assessment should cover the whole of the coastline (defended and undefended)
Not estuaries (as defined by first round SMP boundaries)
Erosion only
Not flooding (complement flood maps)
Nor flooding as a consequence of erosion

5. Coastal Erosion (HA4b) Project Products
Local Authorities
1 to 10,000 scale maps
To inform SMP2 development, planning process, etc
General Public
1 to 50,000 scale maps
To complement “What’s in Your Back Yard” Flood Maps

6. Making Space for Water FD2324 and HA4b
FD2324: R&D, Defra, 2005
HA4b: National application of FD2324
FD2324
HA4b

7. Making Space for Water FD2324/RACE

8. Making Space for Water FD2324/RACE
Techniques for Coastal Defences
Techniques for Recession
Engineering Judgement
Qualitative Assessment
Broad Numerical Analysis
Detailed Calculation of Failure
Probabilistic Models
Technical Judgement
Futurecoast Assessment
Site Specific Assessment
Single Rate Recession Method
Probabilistic Models

9. Making Space for Water HA4b Project Timelines
Project Inception
June 2006
Collate Database
Software Tools (x3)
Processes & User Guide
Create baseline position

10. Making Space for Water HA4b Project Timelines
Project Inception
June 2006
Collate Database
Software Tools (x3)
Processes & User Guide
Create baseline position

11. Making Space for Water HA4b Create Baseline: Database
Spatial Data
OS MasterMap
Aerial Photography
LiDAR
Recession Data
Defra’s Futurecoast
Defence Data
NFCDD
Bespoke Data

12. Making Space for Water HA4b Project Timelines
Project Inception
June 2006
Collate Database
Software Tools (x2)
Processes & User Guide
Create baseline position

13. Making Space for Water HA4b Create Baseline: Software

14. Making Space for Water HA4b Project Timelines
Project Inception
June 2006
Collate Database
Software Tools (x2)
Processes & User Guide
Create baseline position

15. Making Space for Water HA4b Project Timelines
Project Inception
June 2006
Create Database
Create Software Tools (x2)
Test tools & processes
Create baseline position
First National Run

16. Making Space for Water HA4b First National Pass
No defences
No active intervention
Current management policy
3 Epochs: 20, 50, 100 years
Best estimate and confidence bands

17. Making Space for Water HA4b Project Timelines
Project Inception
June 2006
Create Database
Create Software Tools (x2)
Test tools & processes
Create baseline position
First National Pass
“Beta” Testing

18. Making Space for Water HA4b Beta Testing
Independent consultants
Local Authorities
Selected frontages
Further modification of software and user guide

19. Making Space for Water HA4b Project Timelines
Project Inception
June 2006
Create Database
Create Software Tools (x2)
Test tools & processes
Create baseline position
First National Pass
“Beta” Testing
November 2007
Local Validation

20. Making Space for Water HA4b Local Validation
Support
Initial Training
6-week windows
Telephone Support
Local Validation
Update initial coastline position
Update recession information
Update defence parameters
Re-run erosion calculations
Confirm results
Provide feedback

21. Making Space for Water HA4b Local Validation

22. Making Space for Water HA4b Local Validation

23. Making Space for Water HA4b Project Timelines
Project Inception
June 2006
Create Database
Create Software Tools (x2)
Test tools & processes
Create baseline position
First National Pass
“Beta” Testing
November 2007
Local Validation
Initial Hazard Maps
March 2008
Risk Maps
December 2008

24. Making Space for Water HA4b Risk Maps
Scoping of Asset Quantification
Identification and Source
property, infrastructure, landmarks, etc.
Assessment of Use
applicability on a national scale, currency, accessibility, licensing implications, etc.
Quantification Mechanisms
assessment of means of quantification (cost, count, area, etc.)
Presentation of Results
graphical and tabular presentation of the final results

25. Making Space for Water Current Project Position:
Beta testing/further refinement of software
First National Run (3 scenarios)
Finalising & communicating programme for Local Validation
Local Validation begins November 2007

26. Making Space for Water Thank You Geoff.Astle@Environment-Agency.gov.uk