guidelines on the use of natural and nature-based features
TRANSCRIPT
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International NNBF
Guidelines
Guidelines on the Use of Natural and Nature-Based Features for Sustainable
Coastal and Fluvial Systems
March 22, 2018
Jonathan SimmChief Technical Director (Resilience), HR Wallingford
Todd BridgesSenior Research Scientist, Environmental Science, US Army Corps of Engineers
Jo GuyNEAS / TEAM2100 Environment Manager, Environment Agency
Nigel PonteeGlobal Practice Leader, Coastal Planning and Engineering, Jacobs
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International NNBF
Guidelines
Nature-Based Features Perform During Hurricane Sandy
http://www.nyc.gov/html/sirr/html/report/report.shtml
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International NNBF
Guidelines
Value and Use of Natural Systems
Following Hurricane Sandy:• Risk industry-based tools used to quantify
the economic benefits of coastal wetlands • Temperate coastal wetlands saved more than $625
million in flood damages.
• In Ocean County, New Jersey, salt marsh conservation can significantly reduce average annual flood losses by more than 20%.
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International NNBF
Guidelines
NNBF for Coastal and Fluvial Systems
Natural and Nature-Based Features (NNBF) refers to those features that define natural coastal and fluviallandscapes and are either naturallyoccurring or engineered to mimic natural conditions. Some examples of coastal NNBF are beaches and dunes, salt marshes, oyster reefs and barrier islands. For fluvial systems examples - apart from floodplain restoration in rivers and streams – include a range of features to detain and retain flood waters or otherwise create space for water.
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International NNBF
Guidelines International Guidelines on the Use of Natural and Nature-Based Features for Sustainable Coastal and Fluvial Systems
Multi-author: government, academia, NGOs, engineering firms, construction companies, etc.
Addresses full NNBF life cycle
Guidelines in 3 main Parts► Overarching
► Coastal Applications
► Fluvial Applications
Purpose: Develop guidelines for using NNBF to provide engineering functions relevant to flood risk management while producing additional economic, environmental and social benefits.
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International NNBF
Guidelines
Benefits of guidelines
• Technically robust and consistent use of NNBF, as a part of a multi-purpose projects
• Reinforcing the flexibility / adaptability of the NNBF whole life approach,
• Valuation and delivery of multiple benefits from NNBF: flood risk management, economic, social, environmental
and
• Identifying science/engineering knowledge gaps in order to focus future R&D.
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International NNBF
Guidelines
World Bank Principles and Implementation Guidance for Nature-Based Flood Protection
NBFP Workshop, 11-13 April 2017
https://www.gfdrr.org/sites/default/files/documents/Brochure%20Implementing%20nature-based%20flood%20protection_voor%20web.pdf
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International NNBF
Guidelines
Focus on Principles and Performance of NNBF
1. System-scale perspective
2. Risk and benefit assessment for a full range of solutions
3. Standardised performance evaluation
4. Integration with ecosystem conservation and restoration
5. Adaptive management
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International NNBF
Guidelines
World Bank Principles and Implementation Guidance for Nature-Based Flood Protection
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International NNBF
Guidelines
Exploring nature-based solutions: the role of green infrastructure in mitigating the impacts of weather- and climate change-related natural hazards
“…instead of automatically defaulting to grey solutions like dikes and pipes for flooding, we first should look at restoring floodplains or wetlands. Rather than building sea walls, we need to think about conserving sand banks...Planners should compare green to grey and identify new opportunities for investing in nature, including a combination of green and grey approaches when nature-based solutions alone are insufficient. As planners explore how to accommodate infrastructure demands in the future, the lesson is clear: think about green before investing in grey.”
EEA Technical Report No 12/2015
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International NNBF
Guidelines Guidelines Table of ContentsPart 1: Informing the Use of NNBF Preface/Definitions Introduction Principles, Outcomes, Framework for NNBF System Considerations and Combining Elements Analysis of NNBF Benefits Performance Quantification and Metrics Monitoring, Maintenance, and Adaptive Management Community Engagement and Involvement Part 2: Coastal Systems Introduction Reefs Sub-Aquatic Vegetation Beaches and Dunes Wetlands and Intertidal Areas Upland Plant Communities Islands Enhancing Environmental Value of Conventional Infrastructure
Part 3: Fluvial Systems Introduction Agricultural practices; land management Woodland and forest management Water retention and naturalization Use of floodplains
(two-stage channels, offline storage)
Green infrastructure in rivers
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International NNBF
Guidelines
Development Approach
• Voluntary project team• Editorial Board (Bridges, Simm, Beck, Mohan, Collins, Lodder)
• Individual Chapter Teams, with Co-Leads
• Peer review of final product
• Periodic, in-person working meetings combined with virtual engagement and drafting
• Collation and write-up of case studies
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International NNBF
Guidelines International NNBF Guidelines: Team Meeting #1; United States; Vicksburg, MS; 25-26 October, 2016
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International NNBF
Guidelines International NNBF Guidelines: Team Meeting #2; United Kingdom; 10-13 July, 2017
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International NNBF
Guidelines International NNBF Guidelines: Team Meeting #3; United States; Silver Spring, MD; Nov, 2017
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International NNBF
Guidelines International NNBF Guidelines: Team Meeting #4; Netherlands; Delft, 5-9 March, 2017
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International NNBF
Guidelines
UK involvement to date• Jonathan Simm (HR Wallingford, editorial board and framework chapter)
• Jo Guy (EA, coordinator)
• Oliver Burns (EA, beaches and dunes)
• Nigel Pontee (Jacobs, wetlands chapter co-lead + other)
• Lydia Burgess-Gamble (EA, Fluvial section)
• David Ramsbottom & Marta Roca (HR Wallingford, fluvial section)
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International NNBF
Guidelines
ScheduleJune 2018: Chapter Teams deliver first drafts.
Editorial Board review June-Sept 2018.
5th in-person meeting, autumn 2018. San Francisco, CADec 2018: second draft of chapters submitted to EB.
Dec 2018-Feb 2019 Editorial Board review.
March-June 2019: full document completed.
July-Aug 2019: full document issued for peer reviewDocument finalized Sept 2019-Feb 2020.
Mar-April 2020: Guidelines published.
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International NNBF
Guidelines
Inputs sought
• Team members / contributions, especially for fluvial part
• Case study information and references
• Reviewers for peer review Summer 2019
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International NNBF
Guidelines
Further information
Contacts:
Dr. Todd Bridges [email protected]
Dr. Jonathan Simm [email protected]
www.engineeringwithnature.org