Presentation - Adapting to a changing climate in the management of coastal zones meeting - Gonéri le Cozannet
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Presentation - Adapting to a changing climate in the management of coastal zones meeting, Climate services for coastal adaptation to sea-level rise in France - Gonéri le Cozannet (France)
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Presentation - Adapting to a changing climate in the management of coastal zones meeting - Gonéri le Cozannet
- 1. BRGM SERVICE GÉOLOGIQUE NATIONAL WWW.BRGM.FR Montalivet February 2014 Photos: OCA, ONF, ULM Sud Bassin CLIMATE SERVICES FOR COASTAL ADAPTATION TO SEA-LEVEL RISE IN FRANCE Gonéri LE COZANNET BRGM (French Geological Survey) Thanks to many colleagues who provided contributions (Rodrigo Pedreros, Aurélie Maspataud, Déborah Idier…) Thematic Meeting of the OECD Task Force on Climate Change Adaptation
- 2. BRGM SERVICE GÉOLOGIQUE NATIONAL WWW.BRGM.FR Coastal adaptation and sea-level rise in the french regulation Xynthia storm 47 casualties 2.5 billion € direct losses 2010 Circular - 27 July 2011: SLR scenarios in PPRL Circular - 2 August 2011: Priority municipalities for the implementation of PPRL Revised PPRL technical guidelines Improved coastal flood modeling Sea-level rise included Coastal Risk Prevention Plans (PPRL) Technical guidelines 1997 2014 "Loi Littoral" 1986 2011 Maspataud et al., forth. M. Garcin, BRGM
- 3. BRGM SERVICE GÉOLOGIQUE NATIONAL WWW.BRGM.FR Xynthia storm 47 casualties 2.5 billion € direct losses 2010 Circular - 27 July 2011: SLR scenarios in PPRL Circular - 2 August 2011: Priority municipalities for the implementation of PPRL Coastal Risk Prevention Plans (PPRL) Technical guidelines 1997 2014 "Loi Littoral" 1986 2017-2019… Toward new adaptation regulation 2nd French National Adaptation Plan for Climate Change - Being elaborated 2011 2012-… National strategy for integrated coastline management (SNGITC) 2011 Climate Change Adaptation Plan (PNACC) Evaluated in 2013 and 2018 2009-2010 “Grenelle” environmental laws Maspataud et al., forth. Revised PPRL technical guidelines Improved coastal flood modeling Sea-level rise included Coastal adaptation and sea-level rise in the french regulation
- 4. BRGM SERVICE GÉOLOGIQUE NATIONAL WWW.BRGM.FR Data: Dangendorf et al., 2019; PSMSL; IPCC, 2019 Sea-level rise scenarios included in coastal risks prevention plans Observations Projections AR6 SROCC Sea-level rise scenario included in the regulatory coastal risks prevention plans Global sea-level rise (m) Today’s safety margin Motivation: uniform guidelines across administrative boundaries
- 5. BRGM SERVICE GÉOLOGIQUE NATIONAL WWW.BRGM.FR Sea-level rise in French regulation: Successes, issues and ways forwards Successes Issues Ways forward Limitations to further urbanization in hazard-prone areas Public support Improved regulation (ongoing) Better understanding & modeling of coastal flooding Chronic flooding, erosion/accretion, cascading impacts (coastal landfills, polluted soils) still poorly considered Research needs Improved technical guidelines Future sea-level rise is anticipated Up to 60cm only User-centered approach toward coastal climate services Sources: Muller et al., 2017; Pedreros et coll Need for knowledge sharing (e.g., WCRP Sea-Level Activities, JPI, etc.)
- 6. BRGM SERVICE GÉOLOGIQUE NATIONAL WWW.BRGM.FR User centered approaches toward climate services o Sea-level scenarios relevant to each user’s willingness to accept losses o Working with DRIAS (French National Climate Service) o With private and public users to improve the platform o Requires international coordination Iconographic sources: Conservatoire du Littoral, BRGM
- 7. BRGM SERVICE GÉOLOGIQUE NATIONAL WWW.BRGM.FR Sharing knowledge Coastal Climate Core Service Objective: to improve decision-making on coastal risk management and adaptation, by establishing an integrated core service dedicated to coastal adaptation to sea-level rise. Deliverable: an open source web-platform informing users on present-day & future coastal risks. EC support: 6M€
- 8. BRGM SERVICE GÉOLOGIQUE NATIONAL WWW.BRGM.FR Montalivet April 2015 THANK YOU FOR YOUR ATTENTION g.lecozannet@brgm.fr Scoping workshop Assessing local impacts of sea- level rise at the shore for mitigation and adaptation Brussels, 18th March 2019
- 9. BRGM SERVICE GÉOLOGIQUE NATIONAL WWW.BRGM.FR Montalivet February 2014 Photos: OCA, ONF, ULM Sud Bassin THANK YOU FOR YOUR ATTENTION g.lecozannet@brgm.fr
- 10. BRGM SERVICE GÉOLOGIQUE NATIONAL WWW.BRGM.FR Is 60cm enough? > 10 Or too much?