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  1. Coastal Vulnerability Model: Mapping the Coastal Protection Benefits Provided by the Natural Environment Greg Guannel, K. Arkema, M. Papenfus, G. Verutes, J. Bernhardt, A. Guerry, C.-K. Kim, M. Ruckelshaus, and J. Toft fabiencousteau.org

  2. Wave, Wind Geomorphology, Relief NOAA Storm Surge Natural Habitats SaveGuanaCayReef

  3. Wave, Wind adclassix.com Geomorphology, Relief NOAA Storm Surge Marine InVEST jimmymacofphoenix.com Natural Habitats SaveGuanaCayReef

  4. Marine InVEST Models Input Data (reflect scenarios) Model Outputs (ecosystem services & values) ECOSYSTEM SERVICES VALUATION Value ofcarbon sequestered Carbon Sequestration Carbon TERRESTRIAL SYSTEMS Wave Energy Value of captured wave energy Wave Energy BIO-PHYSICAL Coastal Protection Avoided Area Avoided damages Bathymetry & Topography HabitatRisk Species distribution SCENARIOS Value of recreation activity Recreation Tourism Revenue Oceanography Habitat type WaterQuality Fishery Landed Biomass Net present value of finfish and shellfish SOCIO-ECONOMIC Aquaculture Harvested Biomass Population density Visitation Rates Aesthetic Quality Aquaculture operation costs Property values

  5. Mapping Coastal Vulnerability to Erosion and Flooding

  6. Oi! • Are there areas that are more exposed to impacts of high waves and winds than others? • Are there natural factors that can reduce these impacts?

  7. Is this area vulnerable to erosion and inundation during storms? • How do changes in the natural environment affect that vulnerability? • Why does this bloody hell matter to peopleanyways?

  8. Fascinating questions! • Let’s solve them, with the CV model!

  9. Coastal Protection Model Two Types of Habitats Two Types of Hazards Living Erosion Non-living Flooding

  10. Coastal Protection Model Inputs Coastal Vulnerability Model • Know the Environment • Evaluate Scenarios Erosion/Inundation Model

  11. Coastal Vulnerability Index • Qualitative assessment of vulnerability based on mixture of relative and absolute ranking of variables

  12. Coastal Vulnerability Outputs

  13. What’s in an Index?....rock

  14. Living Things! (mostly)

  15. Lots of Water…AND LAND!

  16. Relative Sea Level Change British Columbia. Ministry of Water, Land and Air Protection Need to take land movement into account!

  17. Coastal ExposureIndex? Wind

  18. Wind Exposure U

  19. Wave Exposure U Exposed shorelines: ocean waves Sheltered shorelines: locally-generated waves

  20. Flooding!

  21. Coastal Vulnerability Index • Qualitative assessment of vulnerability based on mixture of relative and absolute ranking of variables

  22. Example Inputs

  23. Example Inputs

  24. Vulnerability Index Output

  25. Oh! And What Did Martha Say? • Why does this bloody hell matter to people anyways?

  26. Limitations and Assumptions - Complex coastal processes summarized by 7 variables Screening Tool - No prediction of shoreline change Qualitative Tool - Site-specific sediment transport patterns ignored General Tool

  27. Application

  28. Model Steps • Run Fetch Calculator • Fetch distances • Exposed/Non-Exposed Shorelines • Run Vulnerability Index

  29. Erosion/Inundation Model Steve@Flickr

  30. Erosion/Inundation Model

  31. Erosion/Inundation Model Can treat effects of coral reefs, mangroves, marshes, seagrass beds, oyster reefs and sand dunes

  32. Example Outputs: Oyster Reefs Fetch Distances Bathymetry Cross-Section

  33. Example Outputs: Oyster Reefs Design Wave H=1m; T=5s

  34. Example Outputs: Seagrass Beds

  35. Let’s Run the Model!

  36. Model Interface

  37. Parameters Table

  38. Geomorphology How to Represent Structures?

  39. Natural Habitats How/Why remove habitats in CV run?

  40. Wind and Wave Data

  41. Model Outputs • Vulnerability Index • Erosion Index • Inundation Index

  42. Update – Ranking Natural Habitats Current Ranking

  43. Update – Ranking Natural Habitats More habitats = more protection!

  44. Wave Exposure – New Approach