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Coastal Resiliency, Science, and Community Planning for Sea Level Rise and the Perfect Storm Peter Slovinsky, Coastal Geol...
Outreach, Partnership Development, and Education How to achieve said goal? Outreach and Partnership Development State Agen...
Available Hazard Vulnerability Assessment Tools Education – GIS Data and Tools Erosion Hazard Area Designation:   Regulato...
Portland Sea Level Portland Tide gauge =  global ocean over last century  1.8 mm/yr  (IPCC, 2007). In Maine, this is the f...
Future Sea Level Rise Coastal Sand Dune Rules (Chapter 355 NRPA) Maine is planning for 2 feet of sea level rise over the n...
“ Coastal wetlands” means all tidal and subtidal lands; all areas with vegetation present that is tolerant of salt water a...
Sea Level Rise Inundation Tool <ul><li>Steps : </li></ul><ul><li>1) Demonstrate accuracy in simulating existing conditions...
Saco Bay Ocean Park Scarborough Old Orchard Beach Marshes Saco Biddeford
“ Groundtruthing”
Identify marsh boundaries
Overlay LIDAR
Identify using tidal elevations
Examine Potential Impacts on Marshes
 
 
Ocean Park Old Orchard Beach
Coastal Inundation Existing Conditions 1
1
Coastal Inundation Existing Conditions 2
2
Coastal Inundation Existing Conditions 3
3
Coastal Inundation Existing Conditions 4
4
Existing Inundation Problems
Allow potential marsh transgression? Identify potential future flooding Structure renovation, removal, relocation
2007 Patriots’ Day Storm = HAT+2 ft Indicator of Future Conditions! 100 year storm = 10 year storm +  1 ft SL rise
 
1-2+ ft flooding April 16, 2007, approximately10:00 am Images courtesy of Bill Edmunds,  www.mainecoastimages.com  and NOA...
 
1-2 ft flooding April 16, 2007, approximately10:00 am Images courtesy of Bill Edmunds,  www.mainecoastimages.com  and NOAA...
 
1-2+ ft flooding April 16, 2007, approximately 10:00 am Images courtesy of Bill Edmunds,  www.mainecoastimages.com  and NO...
 
Dramatic A-zone expansion
Potential Responses Adaptation Techniques
Adaptation Techniques Wetland Restoration Open Space Designation/Acquisition “ Future” Flood or Wetland Areas
Adaptation Techniques Tidal Flow Control Management
April 16, 2007, approximately10:00 am Images courtesy of Bill Edwards,  www.mainecoastimages.com  and NOAA NWS Emergency A...
Adaptation Techniques Elevation and siting
Adaptation Techniques Elevation and siting Future requirement?
Utility Relocation Adaptation Techniques
<ul><li>State Level: </li></ul><ul><li>Regulatory changes (i.e., defining the  future coastal wetland  or the  future floo...
Introduction of concepts Feedback Project Process/Outcomes Strategy adoption into  comprehensive plans, ordinances, etc. M...
Hazards do  not follow geopolitical boundaries!
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Slovinsky Coastal Resiliency

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The Practice and Potential of Ecosystem-Based Management
Applying lessons from land use and coastal management in Maine hosted by Wells National Estuarine Research Reserve,
Maine Coastal Program, Maine Sea Grant,the University of New England, and the Ecosystem-based Management Tools Network

Published in: Technology
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Slovinsky Coastal Resiliency

  1. 1. Coastal Resiliency, Science, and Community Planning for Sea Level Rise and the Perfect Storm Peter Slovinsky, Coastal Geologist Maine Geological Survey, Department of Conservation Funding from:
  2. 2. Outreach, Partnership Development, and Education How to achieve said goal? Outreach and Partnership Development State Agencies – Regional Planning Commissions - Municipalities S outhern M aine R egional P lanning C ommission
  3. 3. Available Hazard Vulnerability Assessment Tools Education – GIS Data and Tools Erosion Hazard Area Designation: Regulatory GIS coverage. Coastal Sand Dune Boundaries: Regulatory GIS coverage. Shoreline Structures: GIS coverage LIDAR: 2004 NOAA data available. GIS data. Digitized Flood Insurance Rate Maps: “homemade” DFIRMs. GIS data. Maine Beach Scoring System: guidance/management/decision-making tool to assess hazard vulnerability and management need. GIS coverage (Historic shorelines, short term erosion, etc.) Sea Level Rise/Inundation Mapping: GIS coverages simulating the potential impacts of 2 feet of sea level rise.
  4. 4. Portland Sea Level Portland Tide gauge = global ocean over last century 1.8 mm/yr (IPCC, 2007). In Maine, this is the fastest in past 3000 years Satellite altimetry (1993-2003) = global sea level 3.1 + 0.7 mm/yr (IPCC, 2007)
  5. 5. Future Sea Level Rise Coastal Sand Dune Rules (Chapter 355 NRPA) Maine is planning for 2 feet of sea level rise over the next 100 years, which is generally a “middle-of-the road” prediction for global sea level rise changes.
  6. 6. “ Coastal wetlands” means all tidal and subtidal lands; all areas with vegetation present that is tolerant of salt water and occurs primarily in salt water or estuarine habitat; and any swamp, marsh, bog, beach, flat or other contiguous lowland that is subject to tidal action during the highest tide level for each year in which an activity is proposed as identified in tide tables published by the National Ocean Service. Coastal wetlands may include portions of coastal sand dunes. Coastal wetlands
  7. 7. Sea Level Rise Inundation Tool <ul><li>Steps : </li></ul><ul><li>1) Demonstrate accuracy in simulating existing conditions for tidal elevations and defining marsh habitats </li></ul><ul><li>2) Simulate impacts of sea level rise on: </li></ul><ul><ul><li>a) Existing infrastructure </li></ul></ul><ul><ul><li>b) Marsh habitat </li></ul></ul><ul><ul><li>c) Flood Insurance Rate Map boundaries </li></ul></ul><ul><li>3) Identify at risk areas </li></ul><ul><li>4) Identify adaptation strategies </li></ul>
  8. 8. Saco Bay Ocean Park Scarborough Old Orchard Beach Marshes Saco Biddeford
  9. 9. “ Groundtruthing”
  10. 10. Identify marsh boundaries
  11. 11. Overlay LIDAR
  12. 12. Identify using tidal elevations
  13. 13. Examine Potential Impacts on Marshes
  14. 16. Ocean Park Old Orchard Beach
  15. 17. Coastal Inundation Existing Conditions 1
  16. 18. 1
  17. 19. Coastal Inundation Existing Conditions 2
  18. 20. 2
  19. 21. Coastal Inundation Existing Conditions 3
  20. 22. 3
  21. 23. Coastal Inundation Existing Conditions 4
  22. 24. 4
  23. 25. Existing Inundation Problems
  24. 26. Allow potential marsh transgression? Identify potential future flooding Structure renovation, removal, relocation
  25. 27. 2007 Patriots’ Day Storm = HAT+2 ft Indicator of Future Conditions! 100 year storm = 10 year storm + 1 ft SL rise
  26. 29. 1-2+ ft flooding April 16, 2007, approximately10:00 am Images courtesy of Bill Edmunds, www.mainecoastimages.com and NOAA NWS
  27. 31. 1-2 ft flooding April 16, 2007, approximately10:00 am Images courtesy of Bill Edmunds, www.mainecoastimages.com and NOAA NWS
  28. 33. 1-2+ ft flooding April 16, 2007, approximately 10:00 am Images courtesy of Bill Edmunds, www.mainecoastimages.com and NOAA NWS
  29. 35. Dramatic A-zone expansion
  30. 36. Potential Responses Adaptation Techniques
  31. 37. Adaptation Techniques Wetland Restoration Open Space Designation/Acquisition “ Future” Flood or Wetland Areas
  32. 38. Adaptation Techniques Tidal Flow Control Management
  33. 39. April 16, 2007, approximately10:00 am Images courtesy of Bill Edwards, www.mainecoastimages.com and NOAA NWS Emergency Access Rerouting Stormwater Improvements
  34. 40. Adaptation Techniques Elevation and siting
  35. 41. Adaptation Techniques Elevation and siting Future requirement?
  36. 42. Utility Relocation Adaptation Techniques
  37. 43. <ul><li>State Level: </li></ul><ul><li>Regulatory changes (i.e., defining the future coastal wetland or the future floodplain ) </li></ul><ul><li>State funded land acquisition, marsh conservation, restoration programs </li></ul><ul><li>Municipal Level: </li></ul><ul><li>Improved coordination amongst communities to address hazards, SL rise and wetlands management </li></ul><ul><li>Land use/development planning </li></ul><ul><li>Capital improvements planning </li></ul><ul><li>Stormwater and road infrastructure management </li></ul><ul><li>Habitat restoration </li></ul><ul><li>Land acquisition and conservation </li></ul><ul><li>Flood proofing, elevating </li></ul><ul><li>Emergency access planning </li></ul><ul><li>Shoreland Zoning changes, comprehensive plans, etc. </li></ul>Project Strategies: Sea Level Rise
  38. 44. Introduction of concepts Feedback Project Process/Outcomes Strategy adoption into comprehensive plans, ordinances, etc. Multi-year project Intercommunity coordination planning Identification of Strategies Tool, data, improvement Needs identification
  39. 45. Hazards do not follow geopolitical boundaries!

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